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API version:

API v1API v2

2Captcha API v1

New JSON API

Try new API. API v2 is built on JSON

The earlier API v1 continues to be stable and supported. If you do not plan to use the new API v2, no action is required. We support both versions of the API.

Try API v2

2Captcha is a human-powered image and CAPTCHA recognition service. 2Captcha's main purpose is solving your CAPTCHAs in a quick and accurate way by human employees, but the service is not limited only to CAPTCHA solving. You can convert to text any image that a human can recognize.

Introduction

We provide an API that allows you to automate the process and integrate your software with our service.

There are few simple steps to solve your captcha or recognize the image:

  1. Send your image or captcha to our server.
  2. Get the ID of your task.
  3. Start a cycle that checks if your task is completed.
  4. Get the result.

Recent Changes

April 22, 2024

Added Tencent captcha support

April 12, 2024

Added atbCAPTCHA support

December 19, 2023

Added Friendly Captcha support

November 14, 2023

Added Cutcaptcha support

September 21, 2023

Added support for CyberSiARA, MTCaptcha and DataDome

March 16, 2023

Added Audio recognition method

January 27, 2023

Added Amazon WAF support

December 7, 2022

Added Cloudflare Turnstile support

October 13, 2022

Temporary removed TikTok method

July 29, 2022

Added Lemin method

March 24, 2022

Added Geetest v4 support

July 6, 2021

Added recaptcha.net domain support for reCAPTCHA

June 1, 2021

Added rqdata support for hCaptcha

January 21, 2021

Updated reCAPTCHA Enterprise method

December 22, 2020

Added Demo page

September 1, 2020

Added reCAPTCHA Enterprise method

July 27, 2020

Added TikTok method

June 1, 2020

Added Capy method

May 29, 2020

Added support of data-s, cookies and userAgent for reCAPTCHA V2

September 10, 2019

Added hCaptcha method

July 4, 2019

Added surl parameter support for FunCaptcha

June 18, 2019

Added pingback management interface. More info here

May 31, 2019

ReportGOOD method added and it is recommended to use it. More info here

February 11, 2019

Added Geetest API. More info here

February 1, 2019

Added debugging method. More info here

December 19, 2018

Added reCAPTCHA V3 method description. More info here

September 21, 2018

Updated pingback logic. Now you only need to register a domain/IP instead of full URL. More info here

April 17, 2018

New parameter added for extended language support More info here

January 18, 2018

New parameter added for invisible reCAPTCHA More info here

January 17, 2018

New method for FunCaptcha implemented! More info here

December 25, 2017

KeyCaptcha method is available again! More info here

December 12, 2017

AudioCaptcha method is now deprecated as non effective and unpolular method.

September 6, 2017

KeyCaptcha method is currenly unavailable .

February 24, 2017

Added some notes on Invisible reCAPTCHA solving. More info here.

November 24, 2016

We've added new error codes to our API corresponding to requests limits. More info here.

November 9, 2016

We've added some new examples for reCAPTCHA V2 API check them out here.

November 9, 2016

At the moment reCAPTCHA V2 can be solved for any website. It's required to send us the full URL of the page where you get reCAPTCHA (it wasn't required before). Sending the proxy information is not obligatory yet but it's recommended.

Our rates

Our rates can be found on Pricing page.

Demo page

You may visit this Demo page to learn examples of how you can bypass different captcha types using PHP, Java and Python.

Solving Captchas

Our API is based on HTTP requests and supports both HTTP and HTTPS protocols.

API endpoints:

  • https://2captcha.com/in.php is used to submit a captcha
  • https://2captcha.com/res.php is used to get the captcha solution

The process of solving captchas with 2Captcha is really easy and it's mostly the same for all types of captchas:

  1. Get your API key from your account settings page. Each user is given a unique authentication token, we call it API key. It's a 32-characters string that looks like:
    1abc234de56fab7c89012d34e56fa7b8
    This key will be used for all your requests to our server.
  2. Submit a HTTP POST request to our API URL: https://2captcha.com/in.php with parameters corresponding to the type of your captcha.
    Server will return captcha ID or an error code if something went wrong.
  3. Make a timeout: 20 seconds for reCAPTCHA, 5 seconds for other types of captchas.
  4. Submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.
    If captcha is already solved server will return the answer in format corresponding to the type of your captcha.
    By default answers are returned as plain text like: OK|Your answer. But answer can also be returned as JSON {"status":1,"request":"TEXT"} if json parameter is used.
    If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.
    If something went wrong server will return an error code.

Normal Captcha

Normal Captcha is an image that contains distored but human-readable text. To solve the captcha user have to type the text from the image.

To solve the captcha with our service you have to submit the image with HTTP POST request to our API URL: https://2captcha.com/in.php
Server accepts images in multipart or base64 format.

Multipart sample form

<form method="post" action="https://2captcha.com/in.php" enctype="multipart/form-data">
<input type="hidden" name="method" value="post">
Your key:
<input type="text" name="key" value="YOUR_APIKEY">
The CAPTCHA file:
<input type="file" name="file">
<input type="submit" value="Upload and get the ID">
</form>

YOUR_APIKEY is Your API key.

Base64 sample form

<form method="post" action="https://2captcha.com/in.php">
<input type="hidden" name="method" value="base64">
Your key:
<input type="text" name="key" value="YOUR_APIKEY">
The CAPTCHA file body in base64 format:
<textarea name="body">BASE64_FILE</textarea>
<input type="submit" value="Upload and get the ID">
</form>

YOUR_APIKEY is your API key.

BASE64_FILE is base64-encoded image body.

You can provide additional parameters with your request to define what kind of captcha you're sending and to help workers to solve your captcha correctly. You can find the full list of parameters in the table below.

If everything is fine server will return the ID of your captcha as plain text, like: OK|2122988149 or as JSON {"status":1,"request":"2122988149"} if json parameter was used.

If something went wrong server will return an error. See Error Handling chapter for the list of errors.

Make a 5 seconds timeout and submit a HTTP GET request to our API URL: https://2captcha.com/res.php providing the captcha ID. The list of parameters is in the table below.

If everything is fine and your captcha is solved server will return the answer as plain text, like: OK|TEXT or as JSON {"status":1,"request":"TEXT"} if json parameter was used.

Otherwise server will return CAPCHA_NOT_READY that means that your captcha is not solved yet. Just repeat your request in 5 seconds.

If something went wrong server will return an error. See Error Handling chapter for the list of errors.

List of POST request parameters for https://2captcha.com/in.php

POST parameter Type Required Description
key String Yes your API key
method String Yes post - defines that you're sending an image with multipart form
base64 - defines that you're sending a base64 encoded image
file File Yes* Captcha image file.
* - required if you submit image as a file (method=post)
body String Yes* Base64-encoded captcha image
* - required if you submit image as Base64-encoded string (method=base64)
phrase Integer
Default: 0
No 0 - captcha contains one word
1 - captcha contains two or more words
regsense Integer
Default: 0
No 0 - captcha in not case sensitive
1 - captcha is case sensitive
numeric Integer
Default: 0
No 0 - not specified
1 - captcha contains only numbers
2 - captcha contains only letters
3 - captcha contains only numbers OR only letters
4 - captcha MUST contain both numbers AND letters
calc Integer
Default: 0
No 0 - not specified
1 - captcha requires calculation (e.g. type the result 4 + 8 = )
min_len Integer
Default: 0
No 0 - not specified
1..20 - minimal number of symbols in captcha
max_len Integer
Default: 0
No 0 - not specified
1..20 - maximal number of symbols in captcha
language Integer
Default: 0
No 0 - not specified
1 - Cyrillic captcha
2 - Latin captcha
lang String No Language code. See the list of supported languages.
textinstructions String
Max 140 characters
Endcoding: UTF-8
No Text will be shown to worker to help him to solve the captcha correctly.
For example: type red symbols only.
imginstructions Image
Max 400x150px, 100 kB
Yes Image with instruction for solving reCAPTCHA.
Not required if you're sending instruction as text with textinstructions.
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled res.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications.

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

Text Captcha

Text Captcha is a type of captcha that is represented as text and doesn't contain images. Usually you have to answer a question to pass the verification.

For example: "If tomorrow is Saturday, what day is today?".

To solve text captcha with our service you have to submit the text as a value of textcaptcha parameter with HTTP POST request to our API URL: https://2captcha.com/in.php

Sample form for Text Captcha

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>

<body>
<form method="post" action="https://2captcha.com/in.php" enctype="multipart/form-data" accept-charset="UTF-8">
Your key:
<input type="text" name="key" value="YOUR_APIKEY">
<input type="text" name="textcaptcha" value="If tomorrow is Saturday, what day is today?">
<input type="submit" value="Send and get the ID">
</form>
</body>
</html>

YOUR_APIKEY is your API key.

You can provide additional parameters with your request to tell us more about your captcha and to help workers to solve it correctly. You can find the full list of parameters in the table below.

If everything is fine server will return the ID of your captcha as plain text, like: OK|2122988149 or as JSON {"status":1,"request":"2122988149"} if json parameter was used.

If something went wrong server will return an error. See Error Handling chapter for the list of errors.

Make a 5 seconds timeout and submit a GET request to our API URL: https://2captcha.com/res.php providing the captcha ID. The list of parameters is in the table below.

If everything is fine and your captcha is solved server will return the answer as plain text, like: OK|TEXT or as JSON {"status":1,"request":"TEXT"} if json parameter was used.

Otherwise server will return CAPCHA_NOT_READY that means that your captcha is not solved yet. Just repeat your request in 5 seconds.

If something went wrong server will return an error. See Error Handling chapter for the list of errors.

List of POST request parameters for https://2captcha.com/in.php

POST parameter Type Required Description
key String Yes your API key
language Integer
Default: 0
No 0 - not specified
1 - Cyrillic (Russian) captcha
2 - Latin captcha
lang String No Language code. See the list of supported languages.
textcaptcha String
Max 140 characters
Endcoding: UTF-8
No Text will be shown to worker to help him to solve the captcha correctly.
For example: type red symbols only.
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled res.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications.

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

reCAPTCHA V2

reCAPTCHA V2 also known as I'm not a robot reCAPTCHA is a very popular type of captcha that looks like this:

reCAPTCHA V2

Solving reCAPTCHA V2 with our new method is pretty simple:

  1. Look at the element's code at the page where you found reCAPTCHA.

  2. Inspect reCAPTCHA V2 widget source code
  3. Find a link that begins with www.google.com/recaptcha/api2/anchor or find data-sitekey parameter.

  4. Copy the value of k parameter of the link (or value of data-sitekey parameter).

  5. Find 'data-sitekey' parameter
  6. Submit a HTTP GET or POST request to our API URL: https://2captcha.com/in.php with method set to userrecaptcha and provide the value found on previous step as value for googlekey and full page URL as value for pageurl. Sending proxies is not obligatory ar the moment but it's recommended.
    You can find the full list of parameters in the table below.

    Request URL example:

    https://2captcha.com/in.php?key=1abc234de56fab7c89012d34e56fa7b8&method=userrecaptcha&googlekey=6Le-wvkSVVABCPBMRTvw0Q4Muexq1bi0DJwx_mJ-&pageurl=http://mysite.com/page/with/recaptcha
  7. If everything is fine server will return the ID of your captcha as plain text, like: OK|2122988149 or as JSON {"status":1,"request":"2122988149"} if json parameter was used.
    Otherwise server will return an error code.

  8. Make a 15-20 seconds timeout then submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.
    The full list of parameters is in the table below.

    If captcha is already solved server will respond in plain text or JSON and return the answer token that looks like:

    03AHJ_Vuve5Asa4koK3KSMyUkCq0vUFCR5Im4CwB7PzO3dCxIo11i53epEraq-uBO5mVm2XRikL8iKOWr0aG50sCuej9bXx5qcviUGSm4iK4NC_Q88flavWhaTXSh0VxoihBwBjXxwXuJZ-WGN5Sy4dtUl2wbpMqAj8Zwup1vyCaQJWFvRjYGWJ_TQBKTXNB5CCOgncqLetmJ6B6Cos7qoQyaB8ZzBOTGf5KSP6e-K9niYs772f53Oof6aJeSUDNjiKG9gN3FTrdwKwdnAwEYX-F37sI_vLB1Zs8NQo0PObHYy0b0sf7WSLkzzcIgW9GR0FwcCCm1P8lB-50GQHPEBJUHNnhJyDzwRoRAkVzrf7UkV8wKCdTwrrWqiYDgbrzURfHc2ESsp020MicJTasSiXmNRgryt-gf50q5BMkiRH7osm4DoUgsjc_XyQiEmQmxl5sqZP7aKsaE-EM00x59XsPzD3m3YI6SRCFRUevSyumBd7KmXE8VuzIO9lgnnbka4-eZynZa6vbB9cO3QjLH0xSG3-egcplD1uLGh79wC34RF49Ui3eHwua4S9XHpH6YBe7gXzz6_mv-o-fxrOuphwfrtwvvi2FGfpTexWvxhqWICMFTTjFBCEGEgj7_IFWEKirXW2RTZCVF0Gid7EtIsoEeZkPbrcUISGmgtiJkJ_KojuKwImF0G0CsTlxYTOU2sPsd5o1JDt65wGniQR2IZufnPbbK76Yh_KI2DY4cUxMfcb2fAXcFMc9dcpHg6f9wBXhUtFYTu6pi5LhhGuhpkiGcv6vWYNxMrpWJW_pV7q8mPilwkAP-zw5MJxkgijl2wDMpM-UUQ_k37FVtf-ndbQAIPG7S469doZMmb5IZYgvcB4ojqCW3Vz6Q
    

    If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.

    If something went wrong server will return an error code.

  9. Locate the element with id g-recaptcha-response and make it visible deleting display:none parameter.

    Find html element with 'g-recaptcha-response' id

    Please note: sometimes content on the page is generated dynamically and you will not see this element in html source.
    In such cases you have to explore javascript code that generates the content. "Inspect" option in Google Chrome can help in that.

    As an alternative you can just use javascript to set the value of g-recaptcha-response field:

    document.getElementById("g-recaptcha-response").innerHTML="TOKEN";
    
  10. An input field will appear on the page. And you just have to paste the answer token to that field and submit the form.

  11. Past received token into the field
  12. Congratulations, you've passed the recaptcha

  13. Success

reCAPTCHA Callback

Sometimes there's no submit button and a callback function is used isntead. The function is executed when reCAPTCHA is solved.

Callback function is usually defined in data-callback parameter of reCAPTCHA, for example:

data-callback="myCallbackFunction"

Or sometimes it's defined as callback parameter of grecaptcha.render function, for example:

grecaptcha.render('example', {
'sitekey' : 'someSitekey',
'callback' : myCallbackFunction,
'theme' : 'dark'
});

Also there's another way to find the callback function - open javascript console of your browser and explore reCAPTCHA configuration object:

___grecaptcha_cfg.clients[0].aa.l.callback

Note that aa.l may change and there can be multiple clients so you have to check clients[1], clients[2] too.

Or just use the script that finds reCAPTCHA parameters

Finally all you have to do is to call that function:

myCallbackFunction();

Or even this way:

___grecaptcha_cfg.clients[0].aa.l.callback();

Sometimes it is required to provide an argument and in most cases you should put the token there. For example:

myCallbackFunction('TOKEN');

Invisible reCAPTCHA V2

reCAPTCHA V2 also has an invisible version.
You may check how it looks like here: https://www.google.com/recaptcha/api2/demo?invisible=true
Recently we noticed some changes in invisible reCAPTCHA algorithms on few websites and added new parameter invisible=1 that should be used for invisible reCAPTCHA.
Read more about invisible reCAPTCHA below.

Invisible reCAPTCHA is located on a DIV layer positioned -10 000 px from top that makes it invisible for user.

reCAPTCHA is activated on page load or on user's actions like click somewhere or submit a form - that depends on the website. If user's cookies are good enough then he will just pass it automatically and no additional actions will be required. Otherwise user will see standard reCAPTCHA form with a challenge.

In most cases when challenge is completed a callback function is executed. You can read more about callback here.

If you are still not sure — there are few ways to determine that reCAPTCHA is in invisible mode:

  • You don't see "I'm not a robot" checkbox on the page but getting recaptcha challenge when making some actions there
  • reCAPTCHA's iframe link contains parameter size=invisible
  • reCAPTCHA's configuration object contains parameter size that is set to invisible, for example ___grecaptcha_cfg.clients[0].aa.l.size is equal to invisible

How to bypass invisible reCAPTCHA in browser?

Method 1: using javascript:

  1. Change the value of g-recaptcha-response element to the token you received from our server:

    document.getElementById("g-recaptcha-response").innerHTML="TOKEN";

  2. Execute the action that needs to be performed on the page after solving reCAPTCHA.

Usually there's a form that should be submitted and you need to identify the form by id or name or any other attribute and then submit the form. Here are few examples:

document.getElementById("recaptcha-demo-form").submit(); //by id "recaptcha-demo-form"
document.getElementsByName("myFormName")[0].submit(); //by element name "myFormName"
document.getElementsByClassName("example").submit(); //by class name "example"

Or sometimes there's a callback function executed when reCAPTCHA is solved.

Callback function is usually defined in data-callback parameter of reCAPTCHA, for example:

data-callback="myCallbackFunction"

Or sometimes it's defined as callback parameter of grecaptcha.render function, for example:

grecaptcha.render('example', {
'sitekey' : 'someSitekey',
'callback' : myCallbackFunction,
'theme' : 'dark'
});

And all you have to do is to call that function:

myCallbackFunction();
  1. Voila! You've done that with just 2 strings of code.

Method 2: changing HTML:

  1. Cut the div containing reCAPTCHA from page body.

    <div style="visibility: hidden; position: absolute; width:100%; top: -10000px; left: 0px; right: 0px; transition: visibility 0s linear 0.3s, opacity 0.3s linear; opacity: 0;">
    <div style="width: 100%; height: 100%; position: fixed; top: 0px; left: 0px; z-index: 2000000000; background-color: #fff; opacity: 0.5;  filter: alpha(opacity=50)">
    </div>
    <div style="margin: 0 auto; top: 0px; left: 0px; right: 0px; position: absolute; border: 1px solid #ccc; z-index: 2000000000; background-color: #fff; overflow: hidden;">
    <iframe src="https://www.google.com/recaptcha/api2/bframe?hl=en&amp;v=r20170213115309&amp;k=6LfP0CITAAAAAHq9FOgCo7v_fb0-pmmH9VW3ziFs#zglq3yifgkmj" title="recaptcha challenge" style="width: 100%; height: 100%;" scrolling="no" name="zglq3yifgkmj" frameborder="0"></iframe>
    </div>
    </div>
  2. Cut the whole block:

    <div class=""><!-- BEGIN: ReCAPTCHA implementation example. -->
    <div id="recaptcha-demo" class="g-recaptcha" data-sitekey="6LfP0CITAAAAAHq9FOgCo7v_fb0-pmmH9VW3ziFs" data-callback="onSuccess" data-bind="recaptcha-demo-submit"><div class="grecaptcha-badge" style="width: 256px; height: 60px; transition: right 0.3s ease 0s; position: fixed; bottom: 14px; right: -186px; box-shadow: 0px 0px 5px gray;"><div class="grecaptcha-logo"><iframe src="https://www.google.com/recaptcha/api2/anchor?k=6LfP0CITAAAAAHq9FOgCo7v_fb0-pmmH9VW3ziFs&amp;co=aHR0cHM6Ly93d3cuZ29vZ2xlLmNvbTo0NDM.&amp;hl=en&amp;v=r20170213115309&amp;size=invisible&amp;cb=uror1hlow5a" title="recaptcha widget" scrolling="no" name="undefined" width="256" height="60" frameborder="0"></iframe></div><div class="grecaptcha-error"></div><textarea id="g-recaptcha-response" name="g-recaptcha-response" class="g-recaptcha-response" style="width: 250px; height: 40px; border: 1px solid #c1c1c1; margin: 10px 25px; padding: 0px; resize: none;  display: none; "></textarea></div></div>
    <script>
    var onSuccess = function (response) {
    var errorDivs = document.getElementsByClassName("recaptcha-error");
    if (errorDivs.length) {
        errorDivs[0].className = "";
    }
    var errorMsgs = document.getElementsByClassName("recaptcha-error-message");
    if (errorMsgs.length) {
        errorMsgs[0].parentNode.removeChild(errorMsgs[0]);
    }
    document.getElementById("recaptcha-demo-form").submit();
    };
    </script><!-- Optional noscript fallback. --><!-- END: ReCAPTCHA implementation example. --></div>
  3. Put the following code instead of the block you've just cut:

    <input type="submit">
    <textarea name="g-recaptcha-response">%g-recaptcha-response%</textarea>

Where %g-recaptcha-response% - is an answer token you’ve got from our service.8. You will see “Submit query” button.
Press the button to submit the form with g-recaptcha-response and all other form data to the website.

List of GET/POST request parameters for https://2captcha.com/in.php

Parameter Type Required Description
key String Yes your API key
method String Yes userrecaptcha - defines that you're sending a reCAPTCHA V2 with new method
enterprise String
Default: 0
No 1 - defines that you're sending reCAPTCHA Enterpise V2
googlekey String Yes Value of k or data-sitekey parameter you found on page
pageurl String Yes Full URL of the page where you see the reCAPTCHA
domain String
Default: google.com
No Domain used to load the captcha: google.com or recaptcha.net
invisible Integer
Default: 0
No 1 - means that reCAPTCHA is invisible. 0 - normal reCAPTCHA.
data-s String No Value of data-s parameter you found on page. Curenttly applicable for Google Search and other Google services.
cookies String No Your cookies that will be passed to our worker who solve the captha. We also return worker's cookies in the response if you use json=1.
Format: KEY:Value, separator: semicolon, example: KEY1:Value1;KEY2:Value2;
userAgent String No Your userAgent that will be passed to our worker and used to solve the captcha.
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.
proxy String No Format: login:password@123.123.123.123:3128
You can find more info about proxies here.
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

reCAPTCHA V3

reCAPTCHA V3 is the newest type of captcha from Google. It has no challenge so there is no need for user interaction. Instead it uses a "humanity" rating - score.

reCAPTCHA V3 technically is quite similar to reCAPTCHA V2: customer receives a token from reCAPTCHA API which is then sent inside a POST request to the target website and verified via reCAPTCHA API.

The difference is now reCAPTCHA API returns rating of a user detecting whether he was a real human or a bot. This rating is called score and could be a number from 0.1 to 0.9. This score is passed to the website which then decides what to do with the user request.

Also there is a new parameter action allowing to process user actions on the website differently. After the verification of token reCAPTCHA API returns the name of the action user performed.

Our approach for solving reCAPTCHA V3
We've performed many experiments and figured out that if a user got score 0.1 on some website then he is likely to get the same score on other websites.

We are detecting the scores of our workers. Then when we've got a request for solving reCAPTCHA V3 with the minimal rating min_score we pass the captcha to the worker with the requested rating or higher. Most of the requests will get the requested rating on targer websites with reCAPTCHA V3.

How to solve reCAPTCHA V3 using 2Captcha:

  1. First you've got to be sure the target website is actually using reCAPTCHA V3

    There should be V3 if:

    • there is no captcha and no images to click on
    • api.js script is loading with the render=sitekey parameter, for example:
      https://www.google.com/recaptcha/api.js?render=6LfZil0UAAAAAAdm1Dpzsw9q0F11-bmervx9g5fE
    • clients array of ___grecaptcha_cfg object is using index 100000: ___grecaptcha_cfg.clients[100000]
  2. To start solving reCAPTCHA V3 using our API first you've got to find three parameters:

    sitekey - this parameter could be obtained from the URI of api.js as a value of render parameter. It could also be found inside URI of iframe with reCAPTCHA, in javascript code of the website where it's calling grecaptcha.execute function or in ___grecaptcha_cfg configuration object.

    action - you've got to find this inspecting javascript code of the website looking for call of grecaptcha.execute function. Example: grecaptcha.execute('6LfZil0UAAAAAAdm1Dpzsw9q0F11-bmervx9g5fE', {action: do_something}).
    Sometimes it's really hard to find it and you've got to dig through all js-files loaded by website. You may also try to find the value of action parameter inside ___grecaptcha_cfg configuration object but usually it's undefined. In that case you have to call grecaptcha.execute and inspect javascript code. If you can't find it try to use the default value "verify" - our API will use it if you don't provide action in your request.

    pageurl - full URL of the page where you see the reCAPTCHA V3.

    Now you need to understand the score you need to solve V3. You can't predict what score is acceptable for the website you want to solve at. It can only be figured out by trial and error. The lowest score is 0.1 which means "robot", the highest is 0.9 which means "human". But most sites uses thresholds from 0.2 to 0.5 because real humans receive a low score oftenly. Our service is able to provide solutions which requires the score of 0.3. Higher score is extreamly rare among workers.

  3. Having all necessary parameters stated above you may send request to our API.

  4. Submit a HTTP GET or POST request to our API URL:
    https://2captcha.com/in.php
    with method set to userrecaptcha and version set to v3 along with min_score set to score website requires, sitekey inside googlekey parameter and full page URL as value for pageurl. You have to include action parameter to or else we will use default value verify.

    List of request parameters below.

    URL request sample:

    https://2captcha.com/in.php?key=1abc234de56fab7c89012d34e56fa7b8&method=userrecaptcha&version=v3&action=verify&min_score=0.3
    &googlekey=6LfZil0UAAAAAAdm1Dpzsw9q0F11-bmervx9g5fE&pageurl=http://mysite.com/page/
    
  5. If everything is fine server will return the ID of your captcha as plain text, like: OK|2122988149 or as JSON {"status":1,"request":"2122988149"} if json parameter was used.

    If something went wrong server will return an error. See Error Handling chapter for the list of errors.

  6. Make a 10-15 seconds timeout and submit a HTTP GET request to our API https://2captcha.com/res.php providing the captcha ID. The list of parameters is in the table below.

    If everything is fine and your captcha is solved server will return the answer as plain text or as JSON. The answer is a token like this:

    03AHJ_Vuve5Asa4koK3KSMyUkCq0vUFCR5Im4CwB7PzO3dCxIo11i53epEraq-uBO5mVm2XRikL8iKOWr0aG50sCuej9bXx5qcviUGSm4iK4NC_Q88flavWhaTXSh0VxoihBwBjXxwXuJZ-WGN5Sy4dtUl2wbpMqAj8Zwup1vyCaQJWFvRjYGWJ_TQBKTXNB5CCOgncqLetmJ6B6Cos7qoQyaB8ZzBOTGf5KSP6e-K9niYs772f53Oof6aJeSUDNjiKG9gN3FTrdwKwdnAwEYX-F37sI_vLB1Zs8NQo0PObHYy0b0sf7WSLkzzcIgW9GR0FwcCCm1P8lB--gf50q5BMkiRH7osm4DoUgsjc_XyQiEmQmxl5sqZP7aKsaE-EM00x59XsPzD3m3YI6SRCFRUevSyumBd7KmXE8VuzIO9lgnnbka4-eZynZa6vbB9cO3QjLH0xSG3--o-fxrOuphwfrtwvvi2FGfpTexWvxhqWICMFTTjFBCEGEgj7_IFWEKirXW2RTZCVF0Gid7EtIsoEeZkPbrcUISGmgtiJkJ_KojuKwImF0G0CsTlxYTOU2sPsd5o1JDt65wGniQR2IZufnPbbK76Yh_KI2DY4cUxMfcb2fAXcFMc9dcpHg6f9wBXhUtFYTu6pi5LhhGuhpkiGcv6vWYNxMrpWJW_pV7q8mPilwkAP-zw5MJxkgijl2wDMpM-UUQ_k37FVtf-ndbQAIPG7S469doZMmb5IZYgvcB4ojqCW3Vz6Q
    

    If the captcha is not solved yet server will return CAPCHA_NOT_READY. Just repeat your request in 5 seconds.

    If something went wrong server will return an error. See Error Handling chapter for the list of errors.

    Sample request:

    https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&json=1&id=2122988149
    
  7. After receiving the token from our API you've got to use it properly on the target website. Best way to understant that is to check the requests sent to site when you act as a normal user. Most browsers has developer's console tool where you should check Network tab.

    Usually token is sent using POST request. It could be g-recaptcha-response just like reCAPTCHA V2 does or g-recaptcha-response-100000. It could be other parameter too. So you've got to inspect the requests and find out how exactly the token supposed to be sent. Then you have to compose your request accordingly.

  8. Now when you have successfully submit the token you may tell us if it worked or not. If not we will refund the money you spent on this token. If it was successfully accepted we will set the worker who solved this captcha as the priority solver for you. Besides we will gather statistics regarding V3 solution which will help us to further investigate this new type of captchas and make our service better.

    To let us know whether it worked or not please send the request to https://2captcha.com/res.php with your API Key in key parameter with ID of the captcha in id parameter and indicating action parameter. Next to mention is reportgood if token was accepted successfully or reportbad if token wasn't accepted respectfully.

    Request examples:

    ReportBAD

    https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=reportbad&id=2122988149
    

    ReportGOOD

    https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=reportgood&id=2122988149
    

    Important: complains for captcha types solved with token are not shown on the website. But we proceed with every report and gather the statistics. We will implement this complain display feature in future.

List of GET/POST request parameters for https://2captcha.com/in.php

Parameter Type Required Description
key String Yes your API key
method String Yes userrecaptcha — defines that you're sending a reCAPTCHA
version String Yes v3 — defines that you're sending a reCAPTCHA V3
enterprise String
Default: 0
No 1 - defines that you're sending reCAPTCHA Enterpise V3
googlekey String Yes Value of sitekey parameter you found on page
pageurl String Yes Full URL of the page where you see the reCAPTCHA
domain String
Default: google.com
No Domain used to load the captcha: google.com or recaptcha.net
action String
Default: verify
No Value of action parameter you found on page
min_score Integer
Default: 0.4
No The score needed for resolution. Currently it's almost impossible to get token with score higher than 0.3
header_acao Integer
Default: 0
No 0 — disabled
1 — enabled.
If enabled in.php will include Access-Control-Allow-Origin:*: header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved. URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 — server will send the response as plain text
1 — tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get — get the asnwer for your captcha
reportgood — - report the asnwer was accepted
reportbad — - report the asnwer was declined
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
No 0 — server will send the response as plain text
1 — tells the server to send the response as JSON
header_acao Integer
Default: 0
No 0 — disabled
1 — enabled.
If enabled res.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications.

reCAPTCHA Enterprise

reCAPTCHA Enterprise is the newest type of captcha from Google. It can be used as V2 and V3 and provides website administrators an option to report the interaction result - was it a human or not.

How to solve reCAPTCHA Enterprise using 2Captcha:

  1. First step is to determine that Enterpise version of reCAPTCHA is used. The main Enterprise attributes are:

    • enterprise.js script instead of api.js is included on the page <script src="https://recaptcha.net/recaptcha/enterprise.js" async="" defer=""></script>
    • grecaptcha.enterprise.METHOD calls in javascript code of the website instead of grecaptcha.METHOD
  2. Then you need to determine which implementation is used: V2, V2 Invisible or V3. It is quite easy, just follow the flowchart below, it works in 99% of cases.

    reCAPTCHA Enterprise flow
  3. Find captcha parameters the same way it is done for V2 or V3.

    For V2 implementations there can be optional additional data used: in most cases that is a custom string value defined in s or data-s parameter. You can pass this data inside data-s request parameter.

    For V3 you may also need the action value. To find it you need to dive into javascript code of the website and find the grecaptcha.enterprise.execute call. Action is passed to this call. But keep in mind that action is optional and can remain undefined.

  4. Add an additional parameter enterprise=1 to your request to in.php endpoint and interact with our API the same way it is done when solving V2 or solving V3 to get the token, then use the token in the same way it is used on your target website.

Grid method

This method allows to solve any captcha where image can be divided into equal parts like reCAPTCHA V2 or hCaptcha. A grid is applied above the image. And you receive the numbers clicked boxes.

To solve the captcha you have to:

  1. Prepare the image and the instruction what to click. The instruction can be sent as text or as image. Don't forget to indicate the instruction language!

  2. Optionally: determine the grid and define it in your request with recaptchacols and recaptcharows parameters.
    If not defined we'll check the size of the image. If it's 300x300px we put 3x3 grid on it. If the size is different we put 4x4 grid.

  3. Submit a HTTP POST request to our API URL: https://2captcha.com/in.php including recaptcha parameter set to 1.

    Server accepts images in multipart or base64 format.

    Also you can provide instructions as an image using imginstructions parameter. For more info please check the full list of parameters in the table below.

  4. Server will return captcha ID or an error code if something went wrong.

  5. Make a 5 seconds timeout and submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.

    If captcha is already solved server will return the answer with numbers of grid cells that you need to click like: OK|click:3/8/9.

    Grid cells are numbered starting from number 1 from left to right and from top to bottom.

    If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.

    If something went wrong server will return an error code.

  6. You simulate clicks on cells from the answer.

  7. If reCAPTCHA updates the set of images you can send us new request with an additional parameter previousID and the ID of previous request as a value. Then our worker will check only new images that were not selected by previous worker.

  8. Also you can proivde additional parameter can_no_answer in case if there's no images to click left. Worker will see a button to confirm that there's no corresponding images and API will return No_matching_images as answer.

Canvas method

If you need to solve challenges that ask to select around object you can pass canvas parameter set to 1.

Server will return the result in the following format: canvas:x,y,x,y,x,y;x,y,x,y,x,y;

Where each pair of x and y are coordinates of points you need to click to select an area around object. If there are more than one area, coordininates of areas will be separated by semicolon.

For example:
canvas:5,5,3,91,93,90,90,7,8,6; - one area
canvas:5,5,3,91,93,90,90,7,8,6;208,211,208,287,294,294,293,209,207,210; - two areas
Point 0,0 is top left corner of the image.

You need to click on these points one by one to pass the challenge.

Multipart sample form for Grid method

<form method="post" action="https://2captcha.com/in.php" enctype="multipart/form-data">
<input type="hidden" name="method" value="post">
<input type="hidden" name="recaptcha" value="1"><br>
<input type="hidden" name="canvas" value="0"><br>
Your key:
<input type="text" name="key" value="YOUR_APIKEY">
reCAPTCHA file:
<input type="file" name="file">
Image with instruction:
<input type="file" name="imginstructions">
<input type="submit" value="Upload and get the ID">
</form>

YOUR_APIKEY is Your API key.

Base64 sample form for Grid method

<form method="post" action="https://2captcha.com/in.php">
<input type="hidden" name="method" value="base64">
<input type="hidden" name="recaptcha" value="1"><br>
<input type="hidden" name="canvas" value="0"><br>
Your key:
<input type="text" name="key" value="YOUR_APIKEY">
reCAPTCHA file body in base64 format:
<textarea name="body">BASE64_RECAPTCHA_FILE</textarea>
Image with instruction body in base64 format:
<textarea name="imginstructions">BASE64_INSTRUCTION_FILE</textarea>
<input type="submit" value="Upload and get the ID">
</form>

YOUR_APIKEY is your API key.

BASE64_RECAPTCHA_FILE is base64-encoded image body of reCAPTCHA V2.

BASE64_INSTRUCTION_FILE is base64-encoded image body of image with instruction.

List of POST request parameters for https://2captcha.com/in.php

POST parameter Type Required Description
key String Yes your API key
method String Yes post - defines that you're sending an image with multipart form
base64 - defines that you're sending a base64 encoded image
recaptcha Integer Yes 1 - defines that you're sending recatcha as image
canvas Integer
Default: 0
No 1 - defines that you want to use canvas method
file File Yes* Captcha image file.
* - required if you submit image as a file (method=post)
body String Yes* Base64-encoded captcha image
* - required if you submit image as Base64-encoded string (method=base64)
textinstructions String
Max 140 characters
Endcoding: UTF-8
Yes Text with instruction for solving reCAPTCHA.
For example: select images with trees.
Not required if you're sending instruction as an image with imginstructions.
imginstructions Image
Max 400x150px, 100 kB
Yes Image with instruction for solving reCAPTCHA.
Not required if you're sending instruction as text with textinstructions.
recaptcharows Integer No Number of rows in reCAPTCHA grid.
recaptchacols Integer No Number of columns in reCAPTCHA grid.
previousID String No Id of your previous request with the same captcha challenge
can_no_answer Integer
Default: 0
No 0 - not specified
1 - possibly there's no images that fit the instruction.
Set the value to 1 only if it's possible that there's no images matching to the instruction.
We'll provide a button "No matching images" to worker and you will receive No_matching_images as answer.
language Integer
Default: 0
No 0 - not specified
1 - Cyrillic captcha
2 - Latin captcha
lang String No Language code. See the list of supported languages.
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.

Please note: you have to send the reCAPTCHA image itself, not its screenshot. And you dont have to combine that image with anything you like, just send it as it is.
Max size for reCAPTCHA image is 600 kB.
Max size for imginstructions is 100 kB.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

Coordinates method

This method allows you to solve any captcha that requires clicking on images, like reCAPTCHA V2, hCaptcha, etc.

To solve the captcha you have to:

  1. Get an image and an instruction that tells you what to click.

  2. Submit a HTTP POST request to our API URL: https://2captcha.com/in.php providing coordinatescaptcha parameter set to 1.
    Server accepts images in multipart or base64 format.

    You can provide instruction as text using textinstructions parameter, but it's not obligatory if the instruction is already indicated on the image.
    But don't forget to indicate the language

    The full list of parameters is in the table below.

  3. Server will return captcha ID or an error code if something went wrong.

  4. Make a 5 seconds timeout and submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.

    If captcha is already solved server will return the answer with coordinates of points where you have to click, for example: OK|coordinate:x=39,y=59;x=252,y=72. Where the point with x=0,y=0 is the upper left corner of the image.

    If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.

    If something went wrong server will return an error code.

  5. You simulate clicks on coordinates from the answer.

Multipart sample form for Coordinates method

<form method="post" action="https://2captcha.com/in.php" enctype="multipart/form-data">
<input type="hidden" name="method" value="post">
<input type="hidden" name="coordinatescaptcha" value="1">
Your key:
<input type="text" name="key" value="YOUR_APIKEY">
Captcha image file:
<input type="file" name="file">
Instruction:
<input type="text" name="textinstructions" value="Click on ghosts">
<input type="submit" value="Upload and get the ID">
</form>

YOUR_APIKEY is Your API key.

Base64 sample form for Coordinates method

<form method="post" action="https://2captcha.com/in.php">
<input type="hidden" name="method" value="base64">
<input type="hidden" name="coordinatescaptcha" value="1">
Your key:
<input type="text" name="key" value="YOUR_APIKEY">
Captcha image body in base64 format:
<textarea name="body">BASE64_FILE</textarea>
Instruction
<input type="text" name="textinstructions" value="Click on ghosts">
<input type="submit" value="Upload and get the ID">
</form>

YOUR_APIKEY is your API key.

BASE64_FILE is base64-encoded image body of the captcha.

List of POST request parameters for https://2captcha.com/in.php

POST parameter Type Required Description
key String Yes your API key
method String Yes post - defines that you're sending an image with multipart form
base64 - defines that you're sending a base64 encoded image
coordinatescaptcha Integer Yes 1 - defines that you're sending recatcha as image
file File Yes* Captcha image file.
* - required if you submit image as a file (method=post)
body String Yes* Base64-encoded captcha image
* - required if you submit image as Base64-encoded string (method=base64)
textinstructions String
Max 140 characters
Endcoding: UTF-8
Yes Text with instruction for solving the captcha.
For example: click on images with ghosts.
Not required if the image already contains the instruction.
imginstructions Image
Max 400x150px, 100 kB
Yes Image with instruction for solving reCAPTCHA.
Not required if you're sending instruction as text with textinstructions.
language Integer
Default: 0
No 0 - not specified
1 - Cyrillic captcha
2 - Latin captcha
lang String No Language code. See the list of supported languages.
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

RotateCaptcha

RotateCaptcha is a type of captcha where you have to rotate images to solve it. The most popular is FunCaptcha by Arkose Labs.

FunCaptcha

To solve RotateCaptcha you have to:

  1. Get an image or several images that should be rotated.

  2. Optionally: determine the angle for one rotation step and provide it as a value for angle parameter.
    If not defined we'll use the default value for FunCaptcha: 40 degrees.

    The full list of parameters is in the table below.

  3. Submit images to our server with HTTP POST request to our API URL: https://2captcha.com/in.php setting method parameter to rotatecaptcha. Server accepts images only in multipart format.

    Server will return captcha ID or an error code if something went wrong.

  4. Make a 5 seconds timeout and submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.

    If captcha is already solved server will return the answer with angles for each image like: OK|40|200|-120.
    Positive values mean that images should be rotated clockwise.
    Negative values mean that images should be rotated counter-clockwise.

    If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.
    If something went wrong server will return an error code.

  5. Rotate images to given angles to solve your RotateCaptcha.

Sample form for RotateCaptcha

<form method="post" action="https://2captcha.com/in.php" enctype="multipart/form-data">
KEY:<br>
<input  name="key" value="YOUR_APIKEY"><br>
Type<br>
<input  name="method" value="rotatecaptcha"><br>
Angle<br>
<input  name="angle" value="40"><br>
Files:<br>
<input type="file" name="file"><br>
<input type="submit" value="Upload and get the ID">
</form>

Sample form for RotateCaptcha in base64 format

<form method="post" action="https://2captcha.com/in.php">
KEY:<br>
<input  name="key" value="YOUR_APIKEY"><br>
Type<br>
<input  name="method" value="rotatecaptcha"><br>
Angle<br>
<input  name="angle" value="40"><br>
Files:<br>
<textarea name="body">BASE64_FILE</textarea>
<input type="submit" value="Upload and get the ID">
</form>

YOUR_APIKEY is your API key.

List of POST request parameters for https://2captcha.com/in.php

POST parameter Type Required Description
key String Yes your API key
method String Yes Captcha solving method.
rotatecaptcha - defines that you're sending RotateCaptcha
angle Integer
Default: 40
No Angle for one rotation step in degrees.
If not defined we'll use the default value for FunCaptcha: 40 degrees.
file File Yes* Captcha image file.
* - required if you submit image as a file (method=post)
body String Yes* Base64-encoded captcha image
* - required if you submit image as Base64-encoded string (method=base64)
lang String No Language code. See the list of supported languages.
imginstructions String No Image with instruction for worker to help him to solve captcha correctly.
textinstructions String No Text will be shown to worker to help him to to solve captcha correctly.
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

Arkose Labs FunCaptcha

Now we provide a method to solve Arkose Labs captcha (ex. FunCaptcha) with a token.

The method is pretty simple:

  1. You need to locate two values on the page with Arkose Labs captcha

    • - Public key
    • - Service URL (surl)

    Public key can be found inside data-pkey parameter of funcaptcha's div element or inside an input element with name fc-token - just extract the key indicated after pk from the value of this element.
    Service Url can be also found in fc-token - that is a value of surl parameter.
    Service Url is optional parameter and if you don't provide it we use a default value that is valid for most cases, but we recommend you to provide it.

  2. Submit a HTTP GET or POST request to our API URL: https://2captcha.com/in.php with method set to funcaptcha, provide values found on previous step for publickey and surl parameter and full page URL as value for pageurl.
    You can find the full list of parameters in the table below.

    Request URL example:

    https://2captcha.com/in.php?key=1abc234de56fab7c89012d34e56fa7b8&method=funcaptcha&publickey=12AB34CD-56F7-AB8C-9D01-2EF3456789A0&surl=https://client-api.arkoselabs.com&pageurl=http://mysite.com/page/with/funcaptcha/
    
  3. If everything is fine server will return the ID of your captcha as plain text, like: OK|2122988149 or as JSON {"status":1,"request":"2122988149"} if json parameter was used.
    Otherwise server will return an error code.

  4. Make a 10-20 seconds timeout then submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.
    The full list of parameters is in the table below.

    If captcha is already solved server will respond in plain text or JSON and return the answer token that looks like:

    3084f4a302b176cd7.96368058|r=ap-southeast-1|guitextcolor=%23FDD531|metabgclr=%23FFFFFF|metaiconclr=%23202122|meta=3|lang=en|pk=12AB34CD-56F7-AB8C-9D01-2EF3456789A0|cdn_url=https://cdn.funcaptcha.com/fc|surl=https://funcaptcha.com
    

    If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.

    If something went wrong server will return an error code.

  5. Locate the element with id fc-token and put the token into value of this element.

  6. Do the rest what you need to do on the website: submit a form or click on a button or something else.

List of GET/POST request parameters for https://2captcha.com/in.php

Parameter Type Required Description
key String Yes your API key
method String Yes funcaptcha - defines that you're sending a FunCaptcha with token method
publickey String Yes Value of pk or data-pkey parameter you found on page
surl String No Value of surl parameter you found on page
pageurl String Yes Full URL of the page where you see the FunCaptcha
data[key] String No Custom data to pass to FunCaptcha.
For example: data[blob]=stringValue
userAgent String No Tells us to use your user-agent value.
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.
proxy String No Format: login:password@123.123.123.123:3128
You can find more info about proxies here.
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

KeyCaptcha

KeyCaptcha is a type of captcha where you have to solve a simple puzzle.

To solve KeyCaptcha with our service you have to:

  1. Find the following KeyCaptcha parameters in page's source code:

    s_s_c_user_id
    s_s_c_session_id
    s_s_c_web_server_sign
    s_s_c_web_server_sign2
    
  2. Submit a HTTP GET or POST request to our API URL: https://2captcha.com/in.php with method set to keycaptcha and provide values found on previous step in your request as values for corresponding request parameters and also full page URL as value for pageurl.
    You can find the full list of parameters in the table below.

    Request URL example:

     https://2captcha.com/in.php?key=1abc234de56fab7c89012d34e56fa7b8&s_s_c_user_id=10&s_s_c_session_id=493e52c37c10c2bcdf4a00cbc9ccd1e8&s_s_c_web_server_sign=9006dc725760858e4c0715b835472f22-pz-&s_s_c_web_server_sign2=2ca3abe86d90c6142d5571db98af6714&method=keycaptcha&pageurl=https://www.keycaptcha.ru/demo-magnetic/
    
  3. If everything is fine server will return the ID of your captcha as plain text, like: OK|2122988149 or as JSON {"status":1,"request":"2122988149"} if json parameter was used.
    Otherwise server will return an error code.

  4. Make a 15-20 seconds timeout then submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.
    The full list of parameters is in the table below.

    If captcha is already solved server will respond in plain text or JSON and return the answer that looks like:

    ebdb5a6bf76da6887db60ef2041ab946|9006dc725760858e4c0715b835472f22|http://back10.keycaptcha.com/swfs/ckc/5bded85426de3c57a7529a84bd0d4d08-|493e52c37c10c2bcdf4a00cbc9ccd1e8|1
    

    If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.

    If something went wrong server will return an error code.

  5. Locate and delete the following block which inclides keycaptcha JavaScript file:

    <script language="JavaScript" src="http://backs.keycaptcha.com/swfs/cap.js"></script>
    

    Locate and delete the div with id="div_for_keycaptcha":

    <div id="div_for_keycaptcha"...>...</div>
    

    Please note: sometimes content on the page is generated dynamically and you will not see these elements in HTML source or they can differ a little bit.
    In such cases you have to explore the source of the page and find JavaScript code that generates the content. "Inspect" option in Google Chrome can help in that.

  6. Locate the element with id="capcode" and change it's value to the response received from our server.

    <input name="capcode" id="capcode" value="1|2|3|4|5" type="hidden">
    
  7. Click on submit button.

Multipart sample form for KeyCaptcha

<form method="post" action="https://2captcha.com/in.php" enctype="multipart/form-data">
Your API-KEY from 2captcha.com:
<input  name="key" value="YOUR_APIKEY"><br>
s_s_c_user_id:<br>
<input  name="s_s_c_user_id" value=""><br>
s_s_c_session_id:<br>
<input  name="s_s_c_session_id" value=""><br>
s_s_c_web_server_sign:<br>
<input  name="s_s_c_web_server_sign" value=""><br>
s_s_c_web_server_sign2:<br>
<input  name="s_s_c_web_server_sign2" value=""><br>
pageurl:<br>
<input  name="pageurl" value=""><br>
It's keycaptcha:<br>
<input type="text" value="keycaptcha" name="method"><br>
<input type="submit" value="UPLOAD AND GET ID">
</form>

YOUR_APIKEY is Your API key.

List of GET/POST request parameters for https://2captcha.com/in.php

Parameter Type Required Description
key String Yes your API key
method String Yes keycaptcha - defines that you're sending a KeyCaptcha
s_s_c_user_id String Yes Value of s_s_c_user_id parameter you found on page
s_s_c_session_id String Yes Value of s_s_c_session_id parameter you found on page
s_s_c_web_server_sign String Yes Value of s_s_c_web_server_sign parameter you found on page
s_s_c_web_server_sign2 String Yes Value of s_s_c_web_server_sign2 parameter you found on page
pageurl String Yes Full URL of the page where you see the KeyCaptcha
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.
proxy String No Format: login:password@123.123.123.123:3128
You can find more info about proxies here.
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

Geetest

Geetest is a type of captcha where you have to move a piece of a puzzle or select some figures in the order.

To solve Geetest captcha with our service you have to:

  1. Find the following Geetest captcha parameters on the target website (usually you can find them inside initGeetest function).

    • gt - public website key (static)
    • challenge - dynamic challenge key
    • api_server - API domain (optional)

Important: you should get a new challenge value for each request to our API. Once captcha was loaded on the page the challenge value becomes invalid. You should inspect requests made to the website when page is loaded to identify a request that gets a new challenge value. Then you should make such request each time to get a valid challenge value.

  1. Submit a HTTP GET or POST request to our API URL: https://2captcha.com/in.php with method set to geetest providing values found on previous step in your request as values for corresponding request parameters and also full page URL as value for pageurl.
    You can find the full list of parameters in the table below.

    Request URL example:

    https://2captcha.com/in.php?key=1abc234de56fab7c89012d34e56fa7b8&method=geetest&gt=f1ab2cdefa3456789012345b6c78d90e&challenge=12345678abc90123d45678ef90123a456b&api_server=api-na.geetest.com&pageurl=https://www.site.com/page/
    
  2. If everything is fine server will return the ID of your captcha as plain text, like: OK|2122988149 or as JSON {"status":1,"request":"2122988149"} if json parameter was used.
    Otherwise server will return an error code.

  3. Make a 15-20 seconds timeout then submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.
    The full list of parameters is in the table below.

    If captcha is already solved server will return the response in JSON. The response contains three values: challenge, validate and seccode:

    {
    "challenge":"1a2b3456cd67890e12345fab678901c2de",
    "validate":"09fe8d7c6ba54f32e1dcb0a9fedc8765",
    "seccode":"12fe3d4c56789ba01f2e345d6789c012|jordan"
    }
    

    If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.

    If something went wrong server will return an error code.

  4. Use the values received from our API to submit your request to the target website placing the values into corresponding request fields:

    • geetest_challenge
    • geetest_validate
    • geetest_seccode

List of GET/POST request parameters for https://2captcha.com/in.php

Parameter Type Required Description
key String Yes your API key
method String Yes geetest - defines that you're sending a Geetest captcha
gt String Yes Value of gt parameter you found on target website
challenge String Yes Value of challenge parameter you found on target website
api_server String No Value of api_server parameter you found on target website
offline Number
Default: 0
No In rare cases initGeetest can be called with offline parameter. If the call uses offline: true, set the value to 1.
new_captcha Number
Default: 0
No In rare cases initGeetest can be called with new_captcha parameter. If the call uses new_captcha: true, set the value to 1. Mostly used with offline parameter.
pageurl String Yes Full URL of the page where you see Geetest captcha
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.
proxy String No Format: login:password@123.123.123.123:3128
You can find more info about proxies here.
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5.
userAgent String No Your userAgent that will be passed to our worker and used to solve the captcha.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 1
No Server will alsways return the response as JSON for Geetest captcha.

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

Geetest v4 captcha

Geetest v4 is a new version of puzzle challenge, but you still have to move a piece of a puzzle to bypass it.

To solve Geetest v4 captcha with our service you need to:

  1. find the captcha_id value in the page HTML source. Normally you will find the value inside script tag that include Geetest v4 javascript code on the page.

  2. Submit a HTTP GET or POST request to our API URL: https://2captcha.com/in.php with method set to geetest_v4 providing the captcha_id found on the page and full page URL as value for pageurl.

    Request URL example:

    https://2captcha.com/in.php?key=1abc234de56fab7c89012d34e56fa7b8&method=geetest_v4&captcha_id=f1ab2cdefa3456789012345b6c78d90e&&pageurl=https://www.site.com/page/
    
  3. If everything is fine server will return the ID of your captcha as plain text, like: OK|2122988149 or as JSON {"status":1,"request":"2122988149"} if json parameter was used.
    Otherwise server will return an error code.

  4. Make a 15-20 seconds timeout then submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.

    If captcha is already solved server will return the response in JSON. The response example is shown below:

    {
    "captcha_id": "e392e1d7fd421dc63325744d5a2b9c73",
    "lot_number": "7fafac97a43d4701aee908afa49c73ba",
    "pass_token": "6f1c27bd15777d5e9e6e1ba94604c28e7b13b94eed3f7c8b79ceaf4660da6320",
    "gen_time": "1648112802",
    "captcha_output": "FEB0Fyp2UEcHdeFQ0PEN-BHenkuCzlpmfX_OLXuf49iF_rPvbjYc9whxQg-sYOCPSzX_19HF0gCPgSoAZ-JPxE46ddE7L6y0J-D_5CcMnT0IYKHFK-NdcBo_m6nISKrpSH3QE9l5r53UTChJdR-bOJPO20gA0bgPEMvDCew7UkQ="
    }
    

    If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.

    If something went wrong server will return an error code.

  5. Use the values received from our API to submit your request to the target website the same way it is done when you bypass the captcha manually.

List of GET/POST request parameters for https://2captcha.com/in.php

Parameter Type Required Description
key String Yes your API key
method String Yes geetest_v4 - defines that you're sending the Geetest v4
captcha_id String Yes Value of captcha_id parameter you found on target website
pageurl String Yes Full URL of the page where you see Geetest captcha
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.
proxy String No Format: login:password@123.123.123.123:3128
You can find more info about proxies here.
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 1
No Server will alsways return the response as JSON for Geetest v4 captcha.

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

hCaptcha

hCaptcha is a quite new type of captcha that is really similar to reCAPTCHA and looks like this:

hCaptcha

To solve hCaptcha you need to extract the value of sitekey parameter from the source code of the page and send a request to our API containin the extracted sitekey and full page URL.

When you received the response. Set the returned useragent value for your browser/HTTP client and place the token into h-captcha-response and g-recaptcha-response hidden elements. Then submit the form or make the corresponding request to your target website.
Please note, hcaptcha also has a callback. If there is no form to submit you MUST explore the website code and find the callback.

List of GET/POST request parameters for https://2captcha.com/in.php

Parameter Type Required Description
key String Yes your API key
method String Yes hcaptcha - defines that you're sending hCaptcha
sitekey String Yes Value of data-sitekey parameter you found on page
pageurl String Yes Full URL of the page where you bypass the captcha
invisible Number
Default: 0
No Use 1 for invisible version of hcaptcha. Currently it is a very rare case.
domain String
Default: hcaptcha.com
No Domain used to load the captcha: hcaptcha.com or js.hcaptcha.com
data String No Custom data that is used in some implementations of hCaptcha, mostly with invisible=1. In most cases you see it as rqdata inside network requests.
Format: "data": "rqDataValue"
userAgent String No Deprecated. We do not use your userAgent anymore on our workers side. Use should set on your side the User-Agent value of our worker returned with the token by our API.
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.
proxy String No Format: login:password@123.123.123.123:3128
You can find more info about proxies here.
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5.

Request example:

{
"key": "YOUR_API_KEY",
"method": "hcaptcha",
"sitekey": "f7de0da3-3303-44e8-ab48-fa32ff8ccc7b",
"pageurl": "https://2captcha.com/demo/hcaptcha",
"json": 1
}

Response example:

`

{
"status": 1,
"request": "74327409378"
}

`

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
Yes Always set to 1 for hCaptcha to get the response as JSON containing the User-Agent value

Request example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149&json=1

Response example:

{
"status": 1,
"request": "P0_eyJ0eXAiOiJK...aJtugg",
"useragent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/115.0"
}

Capy Puzzle

Capy is a Puzzle captcha

Capy Puzzle captcha

Solving Capy is really simple:

  1. Find the value of capy_captchakey parameter in the source code of the page or in the script source link that looks like: https://api.capy.me/puzzle/get_js/?k=PUZZLE_Abc1dEFghIJKLM2no34P56q7rStu8v.

    Also find the root part of the script URL, for example: https://api.capy.me/ and use it in api_server parameter.

  2. Submit a HTTP GET or POST request to our API URL: https://2captcha.com/in.php with method set to capy and provide the values found on previous step as captchakey and api_server and the full page URL as value for pageurl.
    You can find the full list of parameters in the table below.

    Request URL example:

    https://2captcha.com/in.php?key=1abc234de56fab7c89012d34e56fa7b8&method=capy&captchakey=PUZZLE_Abc1dEFghIJKLM2no34P56q7rStu8v&pageurl=http://mysite.com/
    
  3. If everything is fine server will return the ID of your captcha as plain text, like: OK|2122988149 or as JSON {"status":1,"request":"2122988149"} if json parameter was used.
    Otherwise server will return an error code.

  4. Make a 15-20 seconds timeout then submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.
    The full list of parameters is in the table below.

    If captcha is already solved server will respond in JSON and return the answer containing three values: captchakey, challengekey and answer

    {
    "captchakey": "PUZZLE_Abc1dEFghIJKLM2no34P56q7rStu8v",
    "challengekey": "y1Pu234nCwq56WnqB7y8TSZq0Qzp0ltK",
    "answer": "0xax8ex0xax84x0xkx7qx0xux7qx0xux7gx0x18x7gx0x1sx76x0x26x6ix0x2qx6ix0x3ex68x0"
    }
    

    If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.

    If something went wrong server will return an error code.

  5. Use the values returned in your request to the target website passing them in the corresponding request fields:

    • capy_captchakey
    • capy_challengekey
    • capy_answer

List of GET/POST request parameters for https://2captcha.com/in.php

Parameter Type Required Description
key String Yes your API key
method String Yes capy - defines that you're sending Capy
captchakey String Yes Value of captchakey parameter you found on page
api_server String No The domain part of script URL you found on page. Default value: https://jp.api.capy.me/
version String
Default: puzzle
No The version of captcha task: puzzle (assemble a puzzle) or avatar (drag an object).
pageurl String Yes Full URL of the page where you see the captcha
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.
proxy String No Format: login:password@123.123.123.123:3128
You can find more info about proxies here.
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

TikTok

This method is temporary disabled.

Lemin Cropped Captcha

Lemin is a Puzzle captcha

To solve Lemin:

  1. Find the value of captcha_id parameter in the source code of the page or in the script source link that looks like: https://api.leminnow.com/captcha/v1/cropped/CROPPED_1abcd2f_a1234b567c890d12ef3a456bc78d901d/js.

    Also find the root part of the script URL, for example: https://api.leminnow.com/ and use it in api_server parameter.

    And finally find the id of parent div element of the captcha script tag and use the id as value for div_id parameter.

  2. Submit a HTTP GET or POST request to our API URL: https://2captcha.com/in.php with method set to lemin and provide the values found on previous step as captcha_id, div_id and api_server and the full page URL as value for pageurl.
    You can find the full list of parameters in the table below.

    Request example:

    {
    "key": "1abc234de56fab7c89012d34e56fa7b8",
    "method": "lemin",
    "captcha_id": "CROPPED_3dfdd5c_d1872b526b794d83ba3b365eb15a200b",
    "div_id": "lemin-cropped-captcha",
    "api_server": "https://api.leminnow.com/",
    "pageurl": "https://2captcha.com/demo/lemin",
    "json":1
    }
    
  3. If everything is fine server will return the ID of your captcha

    {
    "status": 1,
    "request": "2122988149"
    }
    

    Otherwise server will return an error code.

  4. Make a 15-20 seconds timeout then submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.
    The full list of parameters is in the table below.

    If captcha is already solved server will respond in JSON and return the answer containing the following values: answer, challenge_id

    {
    "answer":"0x0xcgx0x0xbsx0xaxb8x0xkxakx0xux92x0x1sx76x0x2gx5ux0x34x4mx0x3ox3ex0x42x34x0x4cx2qx0x4mx2gx0x50x26x0x5ax26x0x5ax1sx0x50x1sx0x50x1ix0x50x18x0x50xux0x5axux0x5axkx0x5axax0x5ax0x_?_gAAAAABi4-Efd-oTDcTyTsnv7vbHGJW_ucw7GmoYCUxjfbvfMChlne2EIKYrVNV_TfBDN68WX_TDAEQ90xbWjatuYGkaUHsC1lzf7pM7dS8J-WhKQK1rBYaSOgAzGuNVhYX_zrNWHFFr",
    "challenge_id":"a33515c5-9095-4c2a-b2eb-c86214d62f98"
    }
    

    If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.

    If something went wrong server will return an error code.

  5. Use the values returned in your request to the target website passing them in the corresponding request fields:

    • answer
    • challenge_id

List of GET/POST request parameters for https://2captcha.com/in.php

Parameter Type Required Description
key String Yes your API key
method String Yes lemin - defines that you're sending Lemin
captcha_id String Yes Value of captcha_id parameter you found on page
div_id String No The id of captcha parent div element
api_server String No The domain part of script URL you found on page. Default value: https://api.leminnow.com/
pageurl String Yes Full URL of the page where you see the captcha
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.
proxy String No Format: login:password@123.123.123.123:3128
You can find more info about proxies here.
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

Cloudflare Turnstile

Cloudflare Turnstile - is a captha made by Cloudflare

There are two cases for Turnstile:

1 - standalone captcha widget placed on a page of a website, protecting a form from automated submission. For this case just need to extract the sitekey and send it to our API with full page URL. Then just place the token into cf-turnstile-response and g-recaptcha-response fields and submit the form. Also, there can be a callback defined in turnstile.render call.

2 - captcha on Turnstile Challenge page on websites proxied proxied through Cloudflare. In this case you MUST extract the values of cData, chlPageData and action parameters and use the User-Agent value returned from our API. See more info on this case below.

Standalone Turnstile captcha

Request example:

{
"method": "turnstile",
"key": "YOUR_API_KEY",
"sitekey": "0x4AAAAAAAVrOwQWPlm3Bnr5",
"pageurl": "https://2captcha.com/demo/cloudflare-turnstile",
"json": 1
}

Response example:

{
"status": 1,
"request": "74327409378"
}

Use the returned ID to request the result from res.php endpoint of our API

Turnstile captcha on Cloudflare Challenge pages
Turnstile Challege Page

If you need to bypass the Turnstile on Cloudflare Challenge pages you also MUST provide the following additional parameters:

  • action
  • data
  • pagedata

And also you MUST set the User-Agent of your browser or HTTP client to the value returned from our API together with the token.

For cases when Turnstile is used standalone on a website, it is not required.

How to extract the required parameters

To extract the parameters you can redefine the turnstile.rended method to intercept the parameters passed when the method is called. For example, you can inject the following JavaScript code to the page. The code should be executed before the Turnstile widget is loaded.

const i = setInterval(()=>{
if (window.turnstile) {
clearInterval(i)
window.turnstile.render = (a,b) => {
let p = {
method: "turnstile",
key: "YOUR_API_KEY",
sitekey: b.sitekey,
pageurl: window.location.href,
data: b.cData,
pagedata: b.chlPageData,
action: b.action,
userAgent: navigator.userAgent,
json: 1
}
console.log(JSON.stringify(p))
window.tsCallback = b.callback
return 'foo'
}
}
},50)

Request example:

{
"key": "YOUR_API_KEY",
"method": "turnstile",
"sitekey": "0x0AAAAAAADnPIDROzbs0Aaj",
"data": "7fab0000b0e0ff00",
"pagedata": "3gAFo2...0ME1UVT0=",
"pageurl": "https://2captcha.com/",
"action": "managed",
"json": 1
}

Response example:

{
"status": 1,
"request": "74327409378"
}

Use the returned id to request the result from res.php endpoint of our API

`

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=74327409378&json=1

`

Result example:

{
"status": 1,
"request": "0.4uMMZZdSfsVM8...610cd090",
"useragent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36"
}

List of GET/POST request parameters for https://2captcha.com/in.php

Parameter Type Required Description
key String Yes your API key
method String Yes turnstile - defines that you're sending Cloudflare Turnstile
sitekey String Yes Value of sitekey parameter you found on page
pageurl String Yes Full URL of the page where you see the captcha
action String No* Value of optional action parameter you found on page, can be defined in data-action attribute or passed to turnstile.render call
data String No* The value of cData passed to turnstile.render call. Also can be defined in data-cdata attribute
pagedata String No* The value of chlPageData passed to turnstile.render call
useragent String Yes User-Agent of your browser. Use only modern browsers. We recommend to use versions released in the last 6 months
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.
proxy String No Format: login:password@123.123.123.123:3128
You can find more info about proxies here.
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5.

* - parameters required to bypass Turnstile on Cloudflare Challenge pages

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
Yes Always set to 1 for turnstile to get the response as JSON containing the User-Agent value

Amazon WAF Captcha

Amazon WAF Captcha also known as AWS WAF Captcha is a part of Intelligent threat mitigation for Amazon AWS

To bypass the captcha you need to grab the following parameters:

  • sitekey - is a value of key parameter in the page source
  • iv - is a value of iv parameter in the page source
  • context - is a value of context parameter in the page source
  • challenge_script - the URL of challenge.js script
  • captcha_script- the URL of captcha.jsscript
  • pageurl - is the full URL of page where you were challenged by the captcha

Request body example:

{
"key":"1abc234de56fab7c89012d34e56fa7b8",
"method":"amazon_waf",
"sitekey":"AQIDAHjcYu/GjX+QlghicBgQ/7bFaQZ+m5FKCMDnO+vTbNg96AHMDLodoefdvyOnsHMRtEKQAAAAfjB8BgkqhkiG9w0BBwagbzBtAgEAMGgGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMUX+ZqwwuANRnZujSAgEQgDvHSxUQmVBuyUtumoW2n4ccTG7xQN1r3X/zz41qmQaYv9SSSvQrjIoDXKaUQ23tVb4ii8+uljuRdz/HPA==",
"pageurl":"https://non-existent-example.execute-api.us-east-1.amazonaws.com/latest",
"context":"9BUgmlm48F92WUoqv97a49ZuEJJ50TCk9MVr3C7WMtQ0X6flVbufM4n8mjFLmbLVAPgaQ1Jydeaja94iAS49ljb+sUNLoukWedAQZKrlY4RdbOOzvcFqmD/ZepQFS9N5w15Exr4VwnVq+HIxTsDJwRviElWCdzKDebN/mk8/eX2n7qJi5G3Riq0tdQw9+C4diFZU5E97RSeahejOAAJTDqduqW6uLw9NsjJBkDRBlRjxjn5CaMMo5pYOxYbGrM8Un1JH5DMOLeXbq1xWbC17YSEoM1cRFfTgOoc+VpCe36Ai9Kc=",
"challenge_script":"https://41bcdd4fb3cb.610cd090.us-east-1.token.awswaf.com/41bcdd4fb3cb/0d21de737ccb/cd77baa6c832/challenge.js",
"captcha_script":"https://41bcdd4fb3cb.610cd090.us-east-1.captcha.awswaf.com/41bcdd4fb3cb/0d21de737ccb/cd77baa6c832/captcha.js",
"iv":"CgAHbCe2GgAAAAAj",
"json":1
}

If everything is OK you will receive the response with your captcha ID {"status":1,"request":"2122988149"} or an error code if your request was incorrect.

Make a 15-20 seconds timeout then submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.
The full list of parameters is in the table below.

If captcha is already solved server will respond in the following format:

{
"status": 1,
"request": {
"captcha_voucher":"eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ0aW1lc3RhbXAiOiIyMDIzLTAzLTIwVDEzOjM2OjM3Ljg1Nzk5MjEyMFoiLCJjbGllbnRfaWQiOiIxOTI4NTIzMi1jMTRiLTRlMDUtYjQ2OC02ODBiYjE3ZWNhM2MiLCJkb21haW4iOiJlZnc0N2ZwYWQ5LmV4ZWN1dGUtYXBpLnVzLWVhc3QtMS5hbWF6b25hd3MuY29tIiwiZXhwIjoxNjc5MzE5Mzk3LCJwcm9ibGVtIjoiYmlmdXJjYXRlZHpvbyIsInByb2JsZW1fb3ZlcnJpZGUiOmZhbHNlLCJudW1fc29sdXRpb25zX3Byb3ZpZGVkIjoxfQ.qgSX4tZqZQwXNzVQgVe3OsUMR3vf7-fLWNzZKIHXN-4",
"existing_token":"25b7ee41-2d4e-46f7-a52e-2d53d10c199a:EQoAf2Zd5kEWAAAA:qGp2oQxLMEny1L7qBP6uRYJ/DRDRL2v50309/M/O7Gul+k1zh6ZqDVGNbrG6LYmUD+4dSYJMNM2IuxgQYbVHp83OwF8p/BgolBwp45CulWxzCjyEGy1/degDo5ivZ8AjFVymUJI/vCq0BOhD4GGZqR8oveOYcUN7OIJy5mtE2reNI92qCiRCqEr8ccZo02DsBDBDQEQOR+q17gQn2vn0Hp3Ss7A="
}
}

If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.

If something went wrong server will return an error code.

Use the values returned in your interaction with the target website. Normally the values are sent in the corresponding fields of the POST request, but you definetly need to check how it is used on your case.

List of GET/POST request parameters for https://2captcha.com/in.php

Parameter Type Required Description
key String Yes your API key
method String Yes amazon_waf - defines that you're sending Amazon WAF Captcha
sitekey String Yes Value of key parameter you found on the page
iv String Yes Value of iv parameter you found on the page
context String Yes Value of optional context parameter you found on page
pageurl String Yes Full URL of the page where you see the captcha
challenge_script String No The source URL of challenge.js script on the page
captcha_script String No The source URL of captcha.js script on the page
header_acao Integer
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications. Also supported by res.php.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Integer No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users.
proxy String No Format: login:password@123.123.123.123:3128
You can find more info about proxies here.
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

CyberSiARA

Token-based method for automated solving of CyberSiARA.

Method specification

Parameter Type Required Description
key String Yes your API key
method String Yes cybersiara
master_url_id String Yes The value of MasterUrlId parameter obtained from the request to the endpoint API/CyberSiara/GetCyberSiara
pageurl String Yes Full URL of the page where you solve the captcha
userAgent String Yes Your User-Agent that will be passed to our worker and used to solve the captcha.
proxy String No Your proxy: login:password@123.123.123.123:3128
You can find more info about proxies here
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5
json Number No Set to 1 to get the response as JSON. Default: 0
Request example

Endpoint: https://2captcha.com/in.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "method": "cybersiara",
    "master_url_id": "tpjOCKjjpdzv3d8Ub2E9COEWKt1vl1Mv",
    "pageurl": "https://demo.mycybersiara.com/",
    "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36",
    "json": 1
}

Request will return the id of your captcha. Use it to get the result.

Getting the result

Request example

Endpoint: https://2captcha.com/res.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "action": "get",
    "id": 2122988149,
    "json": 1
}
Result example
{
    "status": 1,
    "request": "eyJhbGciOiJIUzUxMi..MjEzODYwMjE="
}

MTCaptcha method

Token-based method for automated solving of MTCaptcha.

Method specification

Parameter Type Required Description
key String Yes your API key
method String Yes mt_captcha
sitekey String Yes The value of sitekey parameter found on the page
pageurl String Yes Full URL of the page where you solve the captcha
proxy String No Your proxy: login:password@123.123.123.123:3128
You can find more info about proxies here
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5
json Number No Set to 1 to get the response as JSON. Default: 0
soft_id Number No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
Request example

Endpoint: https://2captcha.com/in.php
Method: POST

{
    "key":"YOUR_API_KEY",
    "method":"mt_captcha",
    "sitekey":"MTPublic-KzqLY1cKH",
    "pageurl":"https://2captcha.com/demo/mtcaptcha",
    "json": 1
}

Request will return the id of your captcha. Use it to get the result.

Getting the result

Request example

Endpoint: https://2captcha.com/res.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "action": "get",
    "id": 2122988149,
    "json": 1
}
Result example
{
    "status": 1,
    "request": "v1(fa78e9fe,c64ca2f..8e476cd94a6a,Hx3jMg3)"
}

Cutcaptcha method

Token-based method for automated solving of Cutcaptcha.

The token received must be set as the value attribute of the input#cap_token element and/or passed to the callback function.

Method specification

Parameter Type Required Description
key String Yes your API key
method String Yes cutcaptcha
misery_key String Yes The value of CUTCAPTCHA_MISERY_KEY variable defined on page
api_key String Yes The value of data-apikey attribute of iframe's body. Also the name of javascript file included on the page
pageurl String Yes Full URL of the page where you solve the captcha
proxy String No Your proxy: login:password@123.123.123.123:3128
You can find more info about proxies here
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5
json Number No Set to 1 to get the response as JSON. Default: 0
soft_id Number No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
Request example

Endpoint: https://2captcha.com/in.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "method": "cutcaptcha",
    "misery_key": "a1488b66da00bf332a1488993a5443c79047e752",
    "api_key": "SAb83IIB",
    "pageurl": "https://example.cc/foo/bar.html",
    "json": 1
}

Request will return the id of your captcha. Use it to get the result.

Getting the result

Request example

Endpoint: https://2captcha.com/res.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "action": "get",
    "id": 2122988149,
    "json": 1
}
Result example
{
    "status": 1,
    "request": "BazM23cpFUUyAAAdqPwNEDZx0REtH3ss"
}
Using the token

Use the returned token as a value for input with id = cap_token, then submit it's parent form, for example:

document.querySelector('input#cap_token').value='BazM23cpFUUyAAAdqPwNEDZx0REtH3ss'
document.querySelector('form').submit()

If there's a callback function defined, you can call it passing the token as argument:

capResponseCallback('BazM23cpFUUyAAAdqPwNEDZx0REtH3ss')

Friendly Captcha method

Token-based method for automated solving of Friendly Captcha.

The token received must be set as the value attribute of the input#cap_token element and/or passed to the callback function.

Important: To successfully use the received token, the captcha widget must not be loaded on the page. To do this, you need to abort request to /friendlycaptcha/...module.min.js on the page. When the captcha widget is already loaded on the page, there is a high probability that the received token will not work.

Method specification

Parameter Type Required Description
key String Yes your API key
method String Yes friendly_captcha
sitekey String Yes The value of data-sitekey attribute of captcha's div element on page.
pageurl String Yes Full URL of the page where you solve the captcha
proxy String No Your proxy: login:password@123.123.123.123:3128
You can find more info about proxies here
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5
json Number No Set to 1 to get the response as JSON. Default: 0
soft_id Number No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.
Request example

Endpoint: https://2captcha.com/in.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "method": "friendly_captcha",
    "sitekey": "2FZFEVS1FZCGQ9",
    "pageurl": "https://example.com",
    "json": 1
}

Request will return the id of your captcha. Use it to get the result.

Getting the result

Request example

Endpoint: https://2captcha.com/res.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "action": "get",
    "id": 2122988149,
    "json": 1
}
Result example
{
    "status": 1,
    "request": "f8b10f4ad796484bae963b1ebe3ce2bb.ZXL8Z...AAAAAA.AgAD"
}
Using the token

Use the returned token as a value for input with name = frc-captcha-solution, then submit it's parent form, for example:

document.querySelector('input.frc-captcha-solution').value='f8b10f4ad796484bae963b1ebe3ce2bb.ZXL8Z...AAAAAA.AgAD'
document.querySelector('form').submit()

Please note, that form name can be customized with data-solution-field-name attribute, then you need to use the name set as the attribute's value.

If there's a callback function defined, you can call it passing the token as argument. For example, if data-callback="doneCallback" you should run it as:

doneCallback('f8b10f4ad796484bae963b1ebe3ce2bb.ZXL8Z...AAAAAA.AgAD')

atbCAPTCHA method

Token-based method for automated solving of atbCAPTCHA.

Method specification

Parameter Type Required Description
key String Yes your API key
method String Yes atb_captcha
app_id String Yes The value of appId parameter in the website source code.
api_server String Yes The value of apiServer parameter in the website source code.
pageurl String Yes The full URL of target web page where the captcha is loaded. We do not open the page, not a problem if it is available only for authenticated users
proxy String No Your proxy: login:password@123.123.123.123:3128
You can find more info about proxies here
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5
json Number No Set to 1 to get the response as JSON. Default: 0
Request example

Endpoint: https://2captcha.com/in.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "method": "atb_captcha",
    "app_id": "af23e041b22d000a11e22a230fa8991c",
    "api_server": "https://cap.aisecurius.com",
    "pageurl": "https://www.example.com/",
    "json": 1
}

Request will return the id of your captcha. Use it to get the result.

Getting the result

Request example

Endpoint: https://2captcha.com/res.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "action": "get",
    "id": 2122988149,
    "json": 1
}
Result example
{
    "status": 1,
    "request": "sl191suxzluwxxh6f:"
}
Using the token

The token is passed to a callback function defined in success property during the captcha initialization. This function is usually used to make a request to the website backend where the token is verified. You can execute the callback function passing the token as an argument or build a request to the backend using passing the token.

const myCallbackFunction = (token) {
    // verify the token
}
var myCaptcha = as.Captcha(document.getElementById('demo'), {
    appId: 'af23e041b22d000a11e22a230fa8991c',
    success: myCallbackFunction
})

Tencent method

Token-based method for automated solving of Tencent captcha.

Method specification

Parameter Type Required Description
key String Yes your API key
method String Yes tencent
app_id String Yes The value of appId parameter in the website source code.
pageurl String Yes The full URL of target web page where the captcha is loaded. We do not open the page, not a problem if it is available only for authenticated users
proxy String No Your proxy: login:password@123.123.123.123:3128
You can find more info about proxies here
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5
json Number No Set to 1 to get the response as JSON. Default: 0
Request example

Endpoint: https://2captcha.com/in.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "method": "tencent",
    "app_id": "190014885",
    "pageurl": "https://www.example.com/",
    "json": 1
}

Request will return the id of your captcha. Use it to get the result.

Getting the result

Request example

Endpoint: https://2captcha.com/res.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "action": "get",
    "id": 2122988149,
    "json": 1
}
Result example
{
    "status": 1,
    "request": {
        "appid": "190014885",
        "ret": 0,
        "ticket": "tr0344YjJASGmJGtohyWS_y6tJKiqVPIdFgl87vWlVaQoueR8D6DH28go-i-VjeassM31SXO7D0*",
        "randstr": "@KVN"
    }
}

Using the token

The token is passed to a callback function defined in 2nd argument of TencentCaptcha constructor call during the captcha initialization.

new TencentCaptcha(CaptchaAppId, callback, options);

This function is usually used to make a request to the website backend where the token is verified. You can execute the callback function passing the token as an argument or build a request to the backend using passing the token.

For example, if the captcha is initialized like this:

const myCallbackFunction = (token) {
    // verify the token
}
var captcha = new TencentCaptcha('190014885', myCallbackFunction, {});
captcha.show();

You need to call:

let data = JSON.parse(res)
myCallbackFunction(res.request)

Where res is the JSON response from the API.

DataDome

Cookies-based method for automated solving of DataDome.
Set the returned cookie in your browser to bypass the captcha.

To solve the DataDome captcha, you must use a proxy.

Attention, you need to check the value of the parameter t in captcha_url if it is contained. The value of t must be equal to fe.
If t=bv, it means that your ip is banned by the captcha and you need to change the ip address.

Attention, you need to monitor the quality of the proxy used. If your proxy is blocked by the captcha DataDome, then when solving you will receive errors ERR_PROXY_CONNECTION_FAILED or ERROR_CAPTCHA_UNSOLVABLE, in which case you need to change the proxy server used.

Attention, you should provide your User-Agent that was used to interact with target website, it will be used to load and solve the captcha. Always use User-Agents of modern browsers.

Method specification

Parameter Type Required Description
key String Yes your API key
method String Yes datadome
captcha_url String Yes The value of the src parameter for the iframe element containing the captcha on the page.
pageurl String Yes Full URL of the page where you solve the captcha
userAgent String Yes User-Agent of your browser will be used to load the captcha.
proxy String Yes Your proxy: login:password@123.123.123.123:3128
You can find more info about proxies here
proxytype String Yes Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5
json Number No Set to 1 to get the response as JSON. Default: 0
Request example

Endpoint: https://2captcha.com/in.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "method": "datadome",
    "captcha_url": "https://geo.captcha-delivery.com/captcha/?initialCid=AHrlqAAA...P~XFrBVptk&t=fe&referer=https%3A%2F%2Fhexample.com&s=45239&e=c538be..c510a00ea",
    "pageurl": "https://example.com/",
    "proxy":"username:password@1.2.3.4:5678",
    "proxytype":"http",
    "userAgent":"Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Mobile Safari/537.3",
    "json": 1
}

Request will return the id of your captcha. Use it to get the result.

Getting the result

Request example

Endpoint: https://2captcha.com/res.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "action": "get",
    "id": 2122988149,
    "json": 1
}
Result example
{
    "status": 1,
    "request": "datadome=G4TdaXfDqz0B..OJDxGGtKDktILJQEDxM; Max-Age=31536000; Domain=.example.com; Path=/; Secure; SameSite=Lax"
}

Audio Recognition

We provide a speech recognition method that allows you to convert an audio record to text. The method can be used to bypass audio captchas or to recognize any audio record. The limitations are:

  • Max file size: 1 MB
  • Audio duration: not limited
  • Supported audio format: mp3 only
  • Supported speech languages: English, French, German, Greek, Portuguese, Russian

The recognition is fully automated and performed by a neural network trained for speech recognition.

As we're currenly testing the audio recognition, you can get 1000 recognition requests per day for free adding an additional parameter sandbox=1 to your request.

To recognize an audio you need to:

  • Encode the mp3 file to base64
  • Submit a request to our API with the base64 string and the language parameter

Request body example:

{
"key":"1abc234de56fab7c89012d34e56fa7b8",
"method":"audio",
"body":"",
"lang":"pt",
"json":1
}

If everything is OK you will receive the response with your request ID {"status":1,"request":"2122988149"} or an error code if your request was incorrect.

Make a 15-20 seconds timeout then submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.
The full list of parameters is in the table below.

If audio is already recognized server will return the text in the following format:

{
"status": 1,
"request": "hello world"
}

If the recognition process is not finished yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.

If something went wrong server will return an error code.

Use the recognition result the way you need it.

List of request parameters for https://2captcha.com/in.php

Parameter Type Required Description
key String Yes your API key
method String Yes audio - indicates that you're sending audio
body String Yes Base64 encoded audio file in mp3 format. Max file size: 1 MB
lang String Yes The language of audio record. Supported languages are: en, fr, de, el, pt, ru.

List of request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Integer Yes ID of captcha returned by in.php.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON

Request URL example:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get&id=2122988149

Bounding Box Method

The method can be used to solve tasks where you need to select a specific object or draw a box around an object shown on an image.

The limitations are:

  • Supported image formats: JPEG, PNG, GIF
  • Max file size: 600 kB
  • Max image size: 1000px pixels in height or width

To use the Bounding Box method, you must:

  1. Get an image and instructions on which objects to select in the image.

  2. Submit a HTTP POST request to our API URL: https://2captcha.com/in.php specify bounding_box as the value of the parameter method.
    Server accepts images in base64 format.

    You must be sure to send additional instructions in the form of text or image. As text using the textinstructions parameter, or as an image using the imginstructions parameter.

    The full list of parameters is in the table below.

  3. Server will return captcha ID or an error code if something went wrong.

  4. Make a 5 seconds timeout and submit a HTTP GET request to our API URL: https://2captcha.com/res.php to get the result.

    If the task is completed, the server will return the coordinates of the frame in which the object specified in the description is located, for example: OK|[{"xMin":559,"xMax":797,"yMin":164,"yMax":430}]. The response contains the coordinates of two points of the rectangle located diagonally. Counting coordinates from the upper-left corner of the image.

    If captcha is not solved yet server will return CAPCHA_NOT_READY result. Repeat your request in 5 seconds.

    If something went wrong server will return an error code.

Base64 sample form for bounding_box method

<form method="post" action="http://2captcha.com/in.php">
<input type="hidden" name="method" value="bounding_box">
Your key:
<input type="text" name="key" value="YOUR_APIKEY">
The body of the bounding_box image in base64 format:
<textarea name="image">BASE64_IMAGE</textarea>
Instructions for markup data:
<input type="textinstructions" name="textinstructions" value="Select cars in the image">
<input type="submit" value="Upload and get ID">
</form>

The YOUR_APIKEY parameter should be replaced with your API key.

BASE64_IMAGE — the body of the image file encoded in base64 format.

List of request parameters for https://2captcha.com/in.php

Parameter Type Required Description
key String Yes your API key
method String Yes bounding_box
image String Yes Image containing data for markup.
The image must be encoded in Base64 format.
textinstructions String Yes* Text will be shown to worker to help him to select object on the image correctly.
For example: Select cars in the image.
Optional parameter, if the instruction already exists in the form of the imginstructions.
imginstructions String Yes* Image with instruction for worker to help him to select object on the image correctly.
The image must be encoded in Base64 format.
Optional parameter, if the instruction already exists in the form of the textinstructions.
json Number
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
soft_id Number No ID of software developer. Developers who integrated their software with 2Captcha get reward: 10% of spendings of their software users
lang String No Language code. See the list of supported languages.
header_acao Number
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications.
pingback String No URL for pingback (callback) response that will be sent when captcha is solved.
URL should be registered on the server. More info here.

List of request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes get - get the asnwer for your captcha
id Number Yes ID of captcha returned by in.php.
json Number
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON
header_acao Number
Default: 0
No 0 - disabled
1 - enabled.
If enabled in.php will include Access-Control-Allow-Origin:* header in the response.
Used for cross-domain AJAX requests in web applications.
Request example

Endpoint: https://2captcha.com/in.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "method": "bounding_box",
    "image": "/9j/4AAQSkZJRgABAQEAYABgAAD//gA7Q1JFQVRPUjogZ2Q...",
    "textinstructions": "Select cars in the image",
    "json": 1
}

Request will return the id of your captcha. Use it to get the result.

Getting the result

Request example

Endpoint: https://2captcha.com/res.php
Method: POST

{
    "key": "YOUR_API_KEY",
    "action": "get",
    "id": 2122988149,
    "json": 1
}
Result example
{
    "status": 1,
    "request": "[{\"xMin\":100,\"xMax\":316,\"yMin\":66,\"yMax\":210}]"
}

Language support

Our API allows you to set the language of captcha with lang parameter.

Each our worker can tell us which languages he speaks. When you submit a captcha with lang parameter we will distribute your captcha to workers who speak the language. That allows you to solve non-latin and non-cyrillic captchas, for example chinese or vietnamese.

The list of supported languages is available in the table below.

Language code (lang value) Language
en English
ru Russian
es Spanish
pt Portuguese
uk Ukrainian
vi Vietnamese
fr French
id Indonesian
ar Arab
ja Japanese
tr Turkish
de German
zh Chinese
fil Philippine
pl Polish
th Thai
it Italian
nl Nederlands (Dutch)
sk Slovak
bg Bulgarian
ro Romanian
hu Hungarian (Magyar)
ko Korean
cs Czech
az Azerbaijani
fa Persian (Farsi)
bn Bengali
el Greek
lt Lithuanian
lv Latvian
sv Swedish
sr Serbian
hr Croatian
he Hebrew
hi Hindi
nb Norwegian
sl Slovenian
da Danish
uz Uzbek
fi Finnish
ca Catalan
ka Georgian
ms Malay
te Telugu
et Estonian
ml Malayalam
be Belorussian
kk Kazakh
mr Marathi
ne Nepali
my Burmese
bs Bosnian
hy Armenian
mk Macedonian
pa Punjabi (Punjabi)

Error Handling

It's very important to use proper error handling in your code to avoid suspension of your account and service interruption.

Take a look on debugging method provided by our API. It can help you to identify the root or the error.

Normally if something is wrong with your request server will return an error.
Below you can find tables with lists of errors with descriptions:

You can also get the list of all errors returned from in.php by making this call.

Errors can be returned as plain text or as JSON if you provided json=1 parameter.

In very rare cases server can return HTML page with error text like 500 or 502 - please keep it in mind and handle such cases correctly.
If you received anything that doesn't looks like the answer or error code - make a 5 seconds timeout and then retry your request.

List of in.php errors

Error code Description Action
ERROR_WRONG_USER_KEY You've provided key parameter value in incorrect format, it should contain 32 symbols. Stop sending requests. Check your API key.
ERROR_KEY_DOES_NOT_EXIST The key you've provided does not exists. Stop sending requests. Check your API key.
ERROR_ZERO_BALANCE You don't have funds on your account. Stop sending requests. Deposit your account to continue solving captchas.
ERROR_PAGEURL pageurl parameter is missing in your request. Stop sending requests and change your code to provide valid pageurl parameter.
More info.
ERROR_NO_SLOT_AVAILABLE You can receive this error in two cases:
1. If you solve Normal Captcha or ArkoseLabs FunCaptcha: your maximum rate is lower than current rate on the server.
You can change your maximum rate in your account's settings.
2. If you solve token-based captchas: the queue of your captchas that are not distributed to workers is too long. Queue limit changes dynamically and depends on total amount of captchas awaiting solution and usually it’s between 50 and 100 captchas.
If you have received this error, don't try to submit your request again immediately. Instead, 1. Adjust your maximum rate in your account's settings.
or
2. Make 2-3 seconds timeout and then retry to submit your request.
ERROR_ZERO_CAPTCHA_FILESIZE Image size is less than 100 bytes. Check the image file.
ERROR_TOO_BIG_CAPTCHA_FILESIZE Image size is more than 600 kB or image is bigger than 1000px on any side. Check the image file.
ERROR_WRONG_FILE_EXTENSION Image file has unsupported extension. Accepted extensions: jpg, jpeg, gif, png. Check the image file.
ERROR_IMAGE_TYPE_NOT_SUPPORTED Server can't recognize image file type. Check the image file.
ERROR_UPLOAD Server can't get file data from your POST-request.
That happens if your POST-request is malformed or base64 data is not a valid base64 image.
You got to fix your code that makes POST request.
ERROR_IP_NOT_ALLOWED The request is sent from the IP that is not on the list of your allowed IPs. Check the list of your allowed IPs.
IP_BANNED Your IP address is banned due to many frequent attempts to access the server using wrong authorization keys. Ban will be automatically lifted after 5 minutes.
ERROR_BAD_TOKEN_OR_PAGEURL You can get this error code when sending reCAPTCHA V2. That happens if your request contains invalid pair of googlekey and pageurl. The common reason for that is that reCAPTCHA is loaded inside an iframe hosted on another domain/subdomain. Explore code of the page carefully to find valid pageurl and sitekey values.
ERROR_GOOGLEKEY You can get this error code when sending reCAPTCHA V2. That means that sitekey value provided in your request is incorrect: it's blank or malformed. Check your code that gets the sitekey and makes requests to our API.
ERROR_PROXY_FORMAT You use incorrect proxy format in your request to in.php Use proper format as described in section Using proxies.
ERROR_WRONG_GOOGLEKEY googlekey parameter is missing in your request Check your code that gets the sitekey and makes requests to our API.
ERROR_CAPTCHAIMAGE_BLOCKED You've sent an image that is marked in our database as unrecognizable.
Usually that happens if the website where you found the captcha stopped sending you captchas and started to send "deny access" image.
Try to override website's limitations.
TOO_MANY_BAD_IMAGES You are sending too many unrecognizable images Make sure that your last captchas are visible and check unrecognizable images we saved for analisys. Then fix your software to submit images properly.
MAX_USER_TURN You made more than 60 requests to in.php within 3 seconds.
Your account is banned for 10 seconds. Ban will be lifted automatically.
Set at least 100 ms timeout between requests to in.php.
ERROR: NNNN Where NNNN is numeric error code.
You exceeded request limit and your account is temporary suspended.
You should set proper timeouts. Please refer to Request limits for more info.
ERROR_BAD_PARAMETERS The error code is returned if some required parameters are missing in your request or the values have incorrect format. Or in case if you have SandBox mode and 100% recognition options enabled at the same time.
For example if you submit Grid images but your request is missing an instruction for workers. Or if you submit reCAPTCHA V2 or TikTok captcha with cookies string that has incorrect format.
Check that your request contains all the required parameters and the values are in proper format.
Use debug mode to see which values you send to our API.
ERROR_BAD_PROXY You can get this error code when sending a captcha via proxy server which is marked as BAD by our API. Use a different proxy server in your requests.
ERROR_SITEKEY You can get this error code when sending hCaptcha. That means that sitekey value provided in your request is incorrect: it's blank or malformed. Check your code that gets the sitekey and makes requests to our API.

List of res.php errors

Error code Description Action
CAPCHA_NOT_READY Your captcha is not solved yet. Make 5 seconds timeout and repeat your request.
ERROR_CAPTCHA_UNSOLVABLE We are unable to solve your captcha - three of our workers were unable solve it or we didn't get an answer within 90 seconds (300 seconds for reCAPTCHA V2).
We will not charge you for that request.
You can retry to send your captcha.
ERROR_WRONG_USER_KEY You've provided key parameter value in incorrect format, it should contain 32 symbols. Stop sending requests. Check your API key.
ERROR_KEY_DOES_NOT_EXIST The key you've provided does not exists. Stop sending requests. Check your API key.
ERROR_WRONG_ID_FORMAT You've provided captcha ID in wrong format. The ID can contain numbers only. Check the ID of captcha or your code that gets the ID.
ERROR_WRONG_CAPTCHA_ID You've provided incorrect captcha ID. Check the ID of captcha or your code that gets the ID.
ERROR_BAD_DUPLICATES Error is returned when 100% accuracy feature is enabled. The error means that max numbers of tries is reached but min number of matches not found. You can retry to send your captcha again.
ERROR_REPORT_NOT_RECORDED Error is returned to your report request if you already complained lots of correctly solved captchas (more than 40%). Or if more than 15 minutes passed after you submitted the captcha. Make sure that you're sending complain requests only for incorrectly solved captchas.
ERROR_DUPLICATE_REPORT Error is returned to your report request if you are trying to report the same captcha more than once. Make sure that you're sending only one report for each captcha.
ERROR: NNNN Where NNNN is numeric error code.
You exceeded request limit and your account is temporary suspended.
You should set proper timeouts. Please refer to Request limits for more info.
ERROR_IP_ADDRES You can receive this error code when registering a pingback (callback) IP or domain.
That happes if your request is coming from an IP address that doesn't match the IP address of your pingback IP or domain.
Make the request from the IP address matching your IP or domain for pingback.
ERROR_TOKEN_EXPIRED You can receive this error code when sending Geetest.
That error means that challenge value you provided is expired.
If you always receive this error code that means that we're unable to solve Geetest on this website.
ERROR_EMPTY_ACTION Action parameter is missing or no value is provided for action parameter. Check your request parameters and add the neccessary value, e.g. get or getbalance.
ERROR_PROXY_CONNECTION_FAILED You can get this error code if we were unable to load a captcha through your proxy server. The proxy will be marked as BAD by our API and we will not accept requests with the proxy during 10 minutes.
You will recieve ERROR_BAD_PROXY code from in.php API endpoint in such case.
Use a different proxy server in your requests.

Debugging API

Sometimes it can be hard to find to undrestand why our API returns an error code when you make a request that looks correct.

We provide a debugging method that can help you to find the root of the problem showing what exactly our API recevied from you.

The method can be used both on in.php and res.php API endpoints for any request.

Add an additional parameter debug_dump=1 to your request and our server will return a dump of request parameters that received by our API.

Request example:

https://2captcha.com/in.php?key=1abc234de56fab7c89012d34e56fa7b8&method=userrecaptcha&googlekey=6Le-wvkSVVABCPBMRTvw0Q4Muexq1bi0DJwx_mJ-&json=1&header_acao=1&pageurl=http://mysite.com/page/with/recaptcha/&pingback=http://1.2.3.4/pingback_handler/&debug_dump=1

Response example:

array(8) {
["key"]=>
string(32) "1abc234de56fab7c89012d34e56fa7b8"
["method"]=>
string(13) "userrecaptcha"
["googlekey"]=>
string(40) "6Le-wvkSVVABCPBMRTvw0Q4Muexq1bi0DJwx_mJ-"
["json"]=>
string(1) "1"
["header_acao"]=>
string(1) "1"
["pageurl"]=>
string(38) "http://mysite.com/page/with/recaptcha/"
["pingback"]=>
string(32) "http://1.2.3.4/pingback_handler/"
["debug_dump"]=>
string(1) "1"
}
array(0) {
}
array(0) {
}
{"status":0,"request":"ERROR_KEY_DOES_NOT_EXIST"}

Using this method you will be able to easily identify cases when your request contains invalid data or missing required parameters.

Request limits

Please remember and understand that each of your requests to our API generates multuple requests to our databases. That's why we ask to set proper timeouts for your requests and use proper error handling for cases when server returns an error (error message, HTTP error or HTML page with error).

For example:

  • If server returns ERROR_NO_SLOT_AVAILABLE make a 5 seconds timeout before sending next request.
  • If server returns ERROR_ZERO_BALANCE set the timeout to 60 seconds.
  • After uploading a captcha wait a least 5 seconds (10-20 for recaptcha) and only then try to get the answer.
  • If captcha is not solved yet - retry in 5 seconds.

If your timeouts are configured incorrectly your account or IP address will be temporary blocked and server will return an error. See the list of error codes in the table below.

List of error codes for request limitations

Error code Blocking time Blocking reason
ERROR: 1001 10 minutes You received 120 ERROR_NO_SLOT_AVAILABLE errors in one minute because your current bid is lower than current bid on the server
ERROR: 1002 5 minutes You received 120 ERROR_ZERO_BALANCE errors in one minute because your balance is out
ERROR: 1003 30 seconds You are getting ERROR_NO_SLOT_AVAILABLE because you are uploading many captchas and server has a long queue of your captchas that are not distributed to workers.
You received three times more errors than amount of captchas you sent (but not less than 120 errors). Increase the timeout if you see this error.
ERROR: 1004 10 minutes Your IP address is blocked because there were 5 requests with incorrect API key from your IP.
ERROR: 1005 5 minutes You are making too many requests to res.php to get answers.
We use the following rule to block your account: R > C * 20 + 1200
Where:
R - the amount of your requests
C - the amount of captchas you've uploaded
That means that you don't have to make more than 20 requests to res.php per each captcha.
Please remember that balance request sent to res.php also counts!
To get your answer faster without a risk to be blocked you can use pingback feature and we will send you the answer when your captcha is solved.
MAX_USER_TURN 10 seconds You made more than 60 requests to in.php within 3 seconds. Set at least 100 ms timeout between requests to in.php.

Using proxies

Proxies can be used to solve most types of javascript-based captchas:

Proxy allows to solve the captcha from the same IP address as you load the page.
Using proxies is not obligatory in most cases. But for some kind of protection you should use it. For example: Cloudflare and Datadome protection pages require IP matching.
Also good proxies with regular rotation can raise the speed and success rate for Arkose Labs FunCaptcha.

Proxies are not supported for reCAPTCHA V3 and Enterprise V3 as proxies dramatically decrease the success rate for this types of captcha.

If you send us the proxy, we check it's availability trying to open the website through you proxy, and if we can't do that we will not use your proxy.
If we're able to use your proxy - we'll load the reCAPTCHA through it for solving.

We have our own proxies that we can offer you. Buy residential proxies for avoid restrictions and blocks. Quick start.

We support the following proxy types: SOCKS4, SOCKS5, HTTP, HTTPS with authentication by IP address or login and password.

If your proxy uses IP authentication you have to add our IP addresses to the list of allowed IPs of the proxy:
138.201.188.166

Then provide your proxy IP address and port as a value for proxy parameter.
And the type of your proxy as a value for proxytype parameter.

If your proxy uses login/password authentication you have to include your credentials in proxy parameter.

POST parameters for proxies

POST parameter Type Required Description
proxy String No Format for IP authentication: IP_address:PORT
Example: proxy=123.123.123.123:3128
Format for login/password authentication: login:password@IP_address:PORT
Example: proxy=proxyuser:strongPassword@123.123.123.123:3128
proxytype String No Type of your proxy: HTTP, HTTPS, SOCKS4, SOCKS5.
Example: proxytype=SOCKS4

Cookies param

Our API provides extended Cookies support for reCAPTCHA V2 and reCAPTCHA V2 Enterpise.

You can provide your cookies using the format below as the value of json_cookies parameter. We will set the cookies on our worker's browser.

After the captcha was solved succesfully, we will return all the cookies set for domains: google.com and the domain of your target website from pageurl parameter value.

You should use json=1 parameter in your request to res.php endpoint to get the cookies.

Cookies format:

{
"json_cookies": [
{
    "name": "my-cookie-name-1",
    "value": "my-cookie-val-1",
    "domain": "example.com",
    "hostOnly": true,
    "path": "\/",
    "secure": true,
    "httpOnly": false,
    "session": false,
    "expirationDate": 1665434653,
    "sameSite": "strict"
},
{
    "name": "my-cookie-name-2",
    "value": "my-cookie-val-2",
    "domain": ".google.com",
    "hostOnly": false,
    "path": "\/",
    "secure": true,
    "httpOnly": false,
    "session": false,
    "expirationDate": 1668015805.8028,
    "sameSite": "no_restriction"
}
]
}

The following properties are required for each cookie:

  • domain (String) - the domain for cookie
  • name (String) - the cookie name
  • value (String) - the cookie value
  • secure (Boolean) - should we set secure attribute?

Pingback (callback)

We provide a pingback (callback) option that allows you to get the answer for your captcha automatically when it's ready.
It allows you to get answers without making requests to https://2captcha.com/res.php and also allows you to avoid account suspension.

To receive automated pingback you have to:

  • Register your pingback domain/IP address.
  • Provide your pingback URL as a value for pingback parameter of your request to https://2captcha.com/in.php.
  • Process HTTP POST request with URLencoded form data (application/x-www-form-urlencoded) coming from our server to your pingback URL. The request contains two parameters: id - captcha ID and code - the answer.

Incoming pingback request example:

id=51555263943&code=ANSWER

You can use any pingback URL pointing to your registered domain/IP address so your URL can include custom parameters.
But there's one limitation: if you will submit your captcha with GET request and use URL that contains multiple parameters like http://mysite.com/pingback/?myId=1&myCat=2&something_else=test then you will receive pingback to URL with only the first parameter ?myId=1. To avoid that use POST request with multipart/form-data.

Manage pingback addresses

You can manage your pingback addresses on pingback management page or making HTTP GET requests to https://2captcha.com/res.php
Request parameters are described in the table below.

Important: pingback domain/IP address can be registered only from the same IP address so you got to send register request from your server.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes add_pingback - register new pingback URL
get_pingback - get the list of your pingback URLs
del_pingback - delete pingback URL
addr String - Your pingback URL.
For example: http://mysite.com/pingback/url/ or 123.123.123.123/pingback/url/
You can use 'all' value together with del_pingback to delete all your URLs.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON

Request examples

Register pingback domain/IP:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=add_pingback&addr=mysite.com

List pingback domains/IPs:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get_pingback&json=1

Delete all pingback domains/IP:

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=del_pingback&addr=all

Reporting answers

Reporting answers is not required to solve capthcas. But it can help you to cut expenses and increase the accuracy. We described why it is important to report answers in our blog.

We recommend to report both correct and incorrect asnwers for all types of captchas.

If the answer is not accepted by target website use reportbad method to inform us about that. The answer will be rechecked and you will receive a refund for incorrect answer.

If the answer was accepted successfully use reportgood method to indicate that. That will allow us to increase the accuracy for future requests.

Important: don't try to report correct answers with reportbad. If you will do that then we will block this method for your account.

Reports for captchas with token like reCAPTCHA V2/V3, KeyCaptcha, FunCaptcha are not visible in the user interface or the dashboard. But we gather the statistics on these reports to increase the success rate for these captchas.

Reports can not be used for captchas solved with Coordinates method as it is impossible to compare the coordinates with sufficient accuracy.
Reports can not be used if 100% recognition feature is enabled.

Request examples:

ReportBAD

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=reportbad&id=2122988149

ReportGOOD

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=reportgood&id=2122988149

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes reportbad - report incorrectly solved captcha
reportgood - confirm correct answer
id String Yes captcha ID
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON

Server will return OK_REPORT_RECORDED response to your request. Or an error code if something went wrong.

If you're getting too many incorrectly solved captchas you may provide additional parameters with your captcha to help wokers to solve it correctly

Additional methods

You can also get some additional information with our API, like balance, current rate, etc.
Please check available parameters in the table below.

List of GET request parameters for https://2captcha.com/res.php

GET parameter Type Required Description
key String Yes your API key
action String Yes getbalance — get your balance
get — get answers for multiple captchas with one request.
Requires the list of captcha IDs in ids parameter.
get2 — get the price of sent captcha and the answer.
Requires captcha ID in id parameter.
ids String - Comma separated IDs of your captchas.
json Integer
Default: 0
No 0 - server will send the response as plain text
1 - tells the server to send the response as JSON

Example request (plain text):

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get2&id=2122988149

Example response (plain text):

OK|ABCDE|0.00085

Example request (JSON):

https://2captcha.com/res.php?key=1abc234de56fab7c89012d34e56fa7b8&action=get2&id=2122988149&json=1

Example response (JSON):

{
"status":1,
"request":"ABCDE",
"price":"0.00085"
}

Code Examples

We invite you to explore our GitHub repository where you can find libraries and modules for easy integration with our API:

You can find even more code examples and libraries simply searching 2captcha OR rucaptcha on GitHub. If code is made for rucaptcha.com just replace the URL to 2captcha.com, API is the same.

Sandbox mode

We provide Sandbox mode that allows you to see and solve your captchas by yourself.
You can enable Sandbox mode in your settings

When Sandbox mode is enabled your captchas will not be distributed to wokers.

Normal captchas will be availble in Workers Cabinet

Token-based captchas like reCAPTCHA V2, hCaptcha, Geetest, etc are available in Workers' software

Important: to use wokers' software you need to switch to "Worker" mode using the top right dropdown menu. Then copy workers' key and use it in the software.

reCAPTCHA V3 is not supported in SandBox and will be distributed to workers.