2Captcha API v1

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

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

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

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

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

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:

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. 

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. 

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.

   

   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. 

12. Congratulations, you've passed the recaptcha

13. 

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();

13. 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

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

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

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

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.

   

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. 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.

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

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

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.

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

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

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.

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

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

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

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

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

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

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.

3. 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/
   

4. 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.

5. 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.

6. 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

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

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

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

Request URL example:

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

Capy Puzzle

Capy is a 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

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

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

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

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

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

* - parameters required to bypass Turnstile on Cloudflare Challenge pages

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

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

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

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

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

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

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

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

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

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

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.

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

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

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

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

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.

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:

• errors returned by https://2captcha.com/in.php
• errors returned by https://2captcha.com/res.php

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

List of res.php errors

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

Using proxies

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

• reCAPTCHA V2
• reCAPTCHA Enterpise V2
• Arkose Labs FunCaptcha
• Geetest
• Geetest v4
• TikTok

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

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

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 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

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

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:

• PHP [GitHub] [Packageist]
• Java [GitHub] [Maven]
• C# [GitHub] [Nuget]
• Python [GitHub] [PyPi]
• JavaScript [GitHub] [NPM]
• GO [GitHub]
• Ruby [GitHub] [RubyGems]
• C++ [GitHub]

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, 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.