Bypass reCAPTCHA V2 using API of Capmonster Cloud captcha recognition and solution service

reCAPTCHA V2 demo

reCAPTCHA V2 is a popular system for protecting websites from malicious actions. It is known as reCAPTCHA “I am not a robot”. On this demo page you can see an example of reCAPTCHA V2 and use it for testing.

The reCAPTCHA V2 on the site may restrict access to information and authorized actions (such as testing services). To ensure a smooth experience, use the CapMonster Cloud service to automatically resolve reCAPTCHA V2.

How to Solve reCAPTCHA V2

Our service offers several options for solving CAPTCHA. Choose the most convenient way and follow the instructions.

Solution price reCAPTCHA v2

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reCAPTCHA v2

0.6$ / 1000 tokens

99%

Try now

1. Via Browser Extension

The extension is compatible with Chrome and Firefox browsers. Before you start, you need to register in the CapMonster Cloud service, go to your personal account, get and copy the API key.

How to Install The Extension in Chrome

🤖 Automatic Installation:

Go to the extension page in the Chrome Web Store.
Click Install.

👉 Manual Installation:

Download the archive with the extension.
Extract the downloaded archive into a folder with any name.
Open the Extensions page by typing chrome://extensions in the address bar or selecting Extensions from the browser menu.
Enable Developer mode in the top right corner.
Click Load unpacked extension and select the unpacked folder with the files.

Enter the API key in the appropriate field and click the disk icon to save the changes. Make sure the extension is enabled and that the type of CAPTCHA you want to recognize is activated. Now, if a reCAPTCHA V2 is detected on a website, it will be automatically recognized, and you will be able to continue working.

How to Install the Extension in Firefox

🤖 Automatic Installation:

Go to the CapMonster Cloud extension page in Firefox Add-ons Store.
Click Add to Firefox.
Confirm the extension installation when prompted.

👉 Manual Installation:

Download the extension archive.
Go to Add-ons Manager by typing about:addons in the address bar.
Click the gear icon and select Install Add-on From File.
Firefox will ask for confirmation before installation — click Add.

How to Install The Extension in ZennoPoster

If you're working with ZennoPoster, follow these steps to install and activate the extension:

Download the CapMonster Cloud CRX file.
Open ProjectMaker.
Add the “Install Extension” action.
In the action settings, specify the path to the CRX file.
Add the “Activate Extension” action.
In the settings, enter the extension ID: pabjfbciaedomjjfelfafejkppknjleh
When the extension window opens, paste your API key from your CapMonster Cloud account.

For more detailed setup instructions, refer to the official documentation.

2. Via API

Create an account on CapMonster Cloud and copy the API key you receive.
Send a POST request to the CapMonster Cloud API to create a task:

POST

https://api.capmonster.cloud/createTask

Example Request:

{
    "clientKey":"API_KEY",
    "task": {
              "type":"RecaptchaV2Task",
               "websiteURL":"https://lessons.zennolab.com/captchas/recaptcha/v2_simple.php?
               level=high",
                "websiteKey":"6Lcg7CMUAAAAANphynKgn9YAgA4tQ2KI_iqRyTwd"
    }
}

Request Parameters:

type

Specify "RecaptchaV2Task" or "RecaptchaV2TaskProxyless" to solve reCAPTCHA V2 with or without using your own proxies.

websiteUrl

URL, where CAPTCHA is located.

websiteKey

Site key (find it in the HTML code of the site, it is passed in the data-sitekey parameter, for example:

<div class=“g-recaptcha” data-sitekey=“6LdIFr0ZAAAAAAAO3vz0O0O0OQrtAefzdJcWQM2TMYQH”></div> or <iframe title=“reCAPTCHA” src=”...;k=6LdIFr0ZAAAAAAAOAO3vz0O0O0OQrtAefzdJcWQM2TMYQH&.....>, where 6LdIFr0ZAAAAAOAO3vz0O0O0OQrtAefzdJcWQM2TMYQH is the websiteKey).

More information about this parameter and how to find it can be found in our article.

As a response you'll get taskId:

{
  "errorId":0,
  "taskId":407533072
}

3. Send a POST request to check the status of the solution:

POST

https://api.capmonster.cloud/getTaskResult

Example Request:

{
  "clientKey":"API_KEY",
  "taskId": 407533072
}

If the task is still being processed, you will receive:

{
    "errorId": 0,
    "status": "processing"
}

If the task is completed:

{
  "errorId":0,
  "status":"ready",
  "solution": {
	"gRecaptchaResponse":"3AHJ_VuvYIBNBW5yyv0zRYJ75VkOKvhKj9_xGBJKnQimF72rfoq3Iy-DyGHMwLAo6a3"
  }
}

4. Apply the solution: paste the received gRecaptchaResponse (token) into the corresponding field of the form on the website (<textarea id=“g-recaptcha-response”></textarea>) and submit it to complete the process.

3. Via SDK

Using the CapMonster Cloud SDK to solve reCAPTCHA V2 simplifies the CAPTCHA bypass process.
Choose the appropriate programming language and use the template as an example for solving reCAPTCHA V2.

JavaScript

Python

For more detailed information about reCAPTCHA V2, its parameters, and all the ways to solve it using CapMonster Cloud, please refer to the documentation.