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Documentation moved to a new place here.

Documentation at is no longer updated and may be not actual.

Go to target website, this one for example.

  1. Find this HTML tag with sitekey parameter:

    Code Block
    <div class="g-recaptcha" data-sitekey="6Lc_aCMTAAAAABx7u2W0WPXnVbI_v6ZdbM6rYf16"></div>

    If you don't see it in source code, check out this article.

  2. Send this sitekey, page address and other data to our API in a NoCaptchaTask object.
  3. Our service solves your captcha and returns you hash string. Its like a long password with lots of letters.
  4. Use this hash while submitting your form to target website in "g-recaptcha-response" parameter

    Code Block

    Important. The above example is not the only way the target website may send it to it's backend. It might be hidden in AJAX POST request, name of the "g-response" parameter might be different, etc. You have to reproduce exactly in the way it is on the target website. This article will help you to find the way in complex situations.

  5. Expand
    titleViola !

    It works!