reCAPTCHA v3

reCAPTCHA v3 and reCAPTCHA Enterprise use the same task structure. The only difference is which script and API endpoint the target site loads.

Type string	When to use
`RecaptchaV3`	Site loads `https://www.google.com/recaptcha/api.js`
`RecaptchaV3Enterprise`	Site loads `https://www.google.com/recaptcha/enterprise.js`

Data fields

Field	Required	Description
`site_key`	Yes	The reCAPTCHA site key from the target page.
`page_action`	No	The `action` string passed to `execute()`. Should match what the page uses (e.g. `"submit"`, `"homepage"`).
`cookie`	No	Existing `_GRECAPTCHA` cookie value to seed the solver session. Useful when the site tracks cookie continuity across solves.

Solution fields

Field	Description
`solution.token`	The reCAPTCHA token to submit to the target site.
`solution.cookie`	Updated `_GRECAPTCHA` cookie from the solve session. Send it with the token and `data.useragent` in follow-up requests.

Example

Request

{
  "api_key":  "YOUR_API_KEY",
  "type":     "RecaptchaV3",
  "site_url": "https://example.com/contact",
  "proxy":    "user:pass@host:port",
  "data": {
    "site_key":    "6LcXXXXXXXXXXXXXXXXXXXXXX",
    "page_action": "contact_submit"
  }
}

Response

{
  "errorId":  0,
  "status":   "ready",
  "solvtime": 1.38,
  "data": {
    "useragent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 ...",
    "language":  "en-US,en;q=0.9",
    "solution": {
      "token":  "03AGdBq25SqKmv...",
      "cookie": "_GRECAPTCHA=09AKhCRw..."
    }
  }
}

Pass a previous _GRECAPTCHA cookie in data.cookie to continue an existing solver session:

Request

{
  "api_key":  "YOUR_API_KEY",
  "type":     "RecaptchaV3",
  "site_url": "https://example.com/",
  "proxy":    "user:pass@host:port",
  "data": {
    "site_key":    "6LcXXXXXXXXXXXXXXXXXXXXXX",
    "page_action": "submit",
    "cookie":      "_GRECAPTCHA=09AKhCRwjtDLR2M_16JI-9nIYZtJ78YTgd85GmrEb6GW1Y0e0sNpftcDZKCbncWPsXnhEocer9-Jt0UQ3BcRHm7oE"
  }
}

The response includes the updated cookie alongside the token and browser fingerprint fields (useragent, language).

How to identify the correct type

Open the target page source and search for recaptcha.
If the script URL contains enterprise.js → use RecaptchaV3Enterprise.
If the script URL contains api.js → use RecaptchaV3.

Finding the site key

Search the page source for grecaptcha.execute( or data-sitekey. The site key is the first argument or attribute value.

Finding the action

Search for grecaptcha.execute( - the second argument is { action: "..." }. If there is no action, omit page_action or pass "".