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Captcha solver (BestCAPTCHA)

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Captcha is a service used for the analysis of security measures used for human and computer separation. Captcha solver activities solves captcha’s and returns the results.

BestCaptcha activity, uses BestCaptcha’s automated online captcha solver API service. You need an account and add credit to use BestCaptcha’s services. You can find detailed information about creating an account and payment options from BestCaptcha’s website.

*Access tokenAPI key of BestCaptcha’s subscription.
*TemplateImage file name with path or base64 string.
Case sensitive(True/False) Uppercase and lowercase letters are treated as distinct of equivalent.
*Response variable nameVariable name to store image that is solved.
Note: * Fields selected with are required, others are optional.

You can use the Access token as shown in the example.


You can use the Template as shown in the example.


You need to give a file path of image the captcha or you need to enter the base64 string of the captcha image. To do that you need to download the capthca image to worker’s local file system. You can download the image using “Take Capture” activity, “Download File” activity or “Save screen capture” activity whichever is suitable for your process. You can also use the “Base64 encoder” activity to create the base64 string.

You can use the Response variable name as shown in the example.


BestCapthca activity only solve image captchas. You cannot solve Google Recaptcha captchas with BestCaptcha activity. To solve Google Recaptcha’s you need use Captcha solver (ReCAPTCHA) activity.

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