Chrome browser extension

Description

With this extension, you can recognize captchas automatically directly in the browser.

The extension works in the Google Chrome browser.

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Automatic installation

Important! It is not recommended to install extensions in incognito mode or guest mode.

1. Open the Chrome Web Store.
2. Click Install.

To get started with the extension, click on its icon to the right of the address bar. Go to the Settings.

If for some reason it was not possible to install the extension from the Chrome Web Store, use the instructions for manual installation.

Manual installation

1. Download the archive with the extension.

2. Extract the downloaded archive to a folder with any name.

   Important: after installation, do not delete the folder with the extension, otherwise the browser will no longer be able to use it.

3. Enter chrome://extensions in the browser address bar and press Enter.

   You can open the extensions page in one of the following ways:

   • Through the menu: click ⋮ in the upper-right corner, next to the profile image → Extensions → Manage extensions.

     

   • Or open Google Chrome settings and select Extensions in the left menu, at the very bottom of the list.

     

4. Enable Developer mode.

5. A panel will appear at the top of the page. Click the Load unpacked button.

   

6. In the window that opens, select the folder where the archive was extracted.

7. After that, the extension will appear in the list of installed extensions.

   

Manual update of the extension

If you are installing the extension over the previous version, then when you update the original extension files, you also need to click the update button on the Extensions page (how to open this page is described above in the Manual installation section).

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Settings

How to pin the extension

By default the installed extension is hidden. To pin it you have to click on the Pin button:

After launching the extension you’ll see this window:

API key

Enter API key in the corresponding field(1), press Save button(2). If you entered the correct key, your balance will be displayed below(3).

Automated captcha solving

Here you can select the types of captchas that the extension will recognize automatically.

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You may need to reload the page with captcha for the changes to take effect!

Repeat captcha solving in case of an error

If the first attempt to solve the captcha is failed, the extension will send repeated tasks until the captcha is not solved, or until the limit specified in this setting will not be reached.

Proxy

In this section, you can specify a proxy that will be passed along with the recognition task.

The Login and Password fields are optional. The extension also supports proxies with IPv6.

Blacklist control

Using the blacklist you can configure the extension to ignore captchas on specific websites.

After enabling this option, a field for entering sites will appear:

Domains must be specified along with the protocol (https:// or http://). You can use masks:

• ? - any one character except period
• * - any number of any characters

Examples:

Filter	Description
https://zennolab.com	Prohibition of the extension on the site https://zennolab.com
https://*.zennolab.com	Prohibition of the extension on all subdomains https://zennolab.com
https://www.google.*	Prohibiting the extension from working on Google in all zones (ru, com, com.ua, etc.)

When errors occur in solving captchas, see the error glossary.

Captcha parameter mapping

The CapMonster Cloud extension provides a convenient way to view the parameters of various captcha types required for correct task submission and successful solving. The displayed data helps ensure that the parameters you send are accurate and can be used as examples when forming your API requests.

Supported captcha types and their parameters

Captcha type	Displayed parameters
reCAPTCHA V2 (Click)	class, imageUrls, Task (inside metadata), Grid (inside metadata), recognizingThreshold, userAgent, type
reCAPTCHA V2 (Token)	websiteURL, websiteKey, userAgent, type
reCAPTCHA V2 Invisible	class, imageUrls, Task (inside metadata), Grid (inside metadata), recognizingThreshold, userAgent, type
reCAPTCHA V2 Enterprise (Click)	class, imageUrls, Task (inside metadata), Grid (inside metadata), recognizingThreshold, userAgent, type
reCAPTCHA V2 Enterprise (Token)	websiteURL, websiteKey, userAgent, recaptchaDataSValue, type
reCAPTCHA V3	websiteURL, websiteKey, pageAction, minScore, type
GeeTest v3	websiteURL, gt, challenge, userAgent, type
GeeTest v4	websiteURL, gt (captcha_id), userAgent, version, type
Cloudflare Turnstile	websiteURL, websiteKey, userAgent, type
Cloudflare Challenge	websiteURL, websiteKey, userAgent, pageAction, data, pageData, cloudflareTaskType, type
ImageToText	body (in base64 format), type
BLS	class, imagesBase64, Task (inside metadata), TaskArgument (inside metadata), type
Binance	websiteURL, websiteKey, validateId, userAgent, type

To use this feature, enable the extension, specify your API key in the settings, and make sure there are funds on your balance. Then open the page with the captcha, check that its type is supported and selected for solving, and follow these steps:

1. Open Developer Tools and go to the Capmonster Cloud tab:

   

2. Reload the page.

Important

For API requests, use an up-to-date userAgent supported by our service.

Captcha parameters will be displayed automatically: