reCAPTCHA v3 Enterprise

This section contains a description of the task for solving Google reCAPTCHA v3 Enterprise.

reCAPTCHA v3 Enterprise operates entirely in the background and does not require the user to perform any actions. The system analyzes behavioral and technical signals from the page visitor and generates a risk assessment for each request. Based on this information, the site decides whether the action is allowed, using a trust score that typically ranges from 0.1 to 0.9.

Task Type

Request Parameters

Create Task

Request

POST https://captcha69.com/createTask
Content-Type: application/json

{
  "clientKey": "max1_YOUR_API_KEY",
  "task": {
    "type": "RecaptchaV3EnterpriseTaskProxyless",
    "websiteURL": "https://example.com",
    "websiteKey": "6Le0xVgUAAAAAIt20XEB4rVhYOODgTl00d4TuRTE",
    "minScore": 0.7
  }
}

Response

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

Get Task Result

Use the getTaskResult method to request the answer for reCAPTCHA v3 Enterprise. You will get a response within a 10-30 second period depending on service workload.

Request

POST https://captcha69.com/getTaskResult
Content-Type: application/json

{
  "clientKey": "max1_YOUR_API_KEY",
  "taskId": 407533072
}

Response

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

For some websites, the response may include userAgent:

{
  "errorId": 0,
  "status": "ready",
  "solution": {
    "gRecaptchaResponse": "3AHJ_VuvYIBNBW5yyv0zRYJ75VkOKvhKj9_xGBJKnQimF72rfoq3Iy-DyGHMwLAo6a3",
    "userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36"
  }
}

Solution Properties

Differences Between reCAPTCHA v3 Enterprise and Standard reCAPTCHA v3

Practical way to identify:

1. Open the page with the captcha and enable DevTools → Network.
2. Locate the reCAPTCHA scripts:
   • If the URL contains /enterprise.js — it's v3 Enterprise.
   • If the URL contains /api.js — it's standard v3.
3. You can also inspect the reCAPTCHA iframe: in Enterprise, the iframe URL contains /enterprise/anchor, whereas in standard v3 it contains /anchor.

Finding Parameters

websiteKey

Manually:

1. Open the page on your website where the captcha is displayed.
2. Open Developer Tools in your browser and go to the Network tab.
3. Reload the page and look for requests such as:
   • https://www.google.com/recaptcha/enterprise/anchor?ar=1&k=
   • https://www.google.com/recaptcha/enterprise.js?render=
   • https://www.google.com/recaptcha/enterprise/reload?k=
4. The k parameter in these URLs is the websiteKey.

Code Examples

const iframe = document.querySelector('iframe[src*="recaptcha"]');

if (iframe) {
  const src = iframe.src;
  const k = new URL(src).searchParams.get('k');
  console.log('Site key:', k);
} else {
  console.log('reCAPTCHA iframe not found');
}

const { chromium } = require("playwright");

(async () => {
  const browser = await chromium.launch({ headless: false });
  const page = await browser.newPage();

  // Replace with your target URL
  await page.goto("https://example.com/", {
    waitUntil: "load",
  });

  await page.waitForSelector('iframe[src*="recaptcha"]', { timeout: 10000 });

  const k = await page.evaluate(() => {
    const iframe = document.querySelector('iframe[src*="recaptcha"]');
    if (!iframe) return null;
    return new URL(iframe.src).searchParams.get("k");
  });

  console.log("Site key:", k);

  await browser.close();
})();

from playwright.sync_api import sync_playwright

with sync_playwright() as p:
    browser = p.chromium.launch(headless=False)
    page = browser.new_page()

    # Replace with your target URL
    page.goto("https://www.example.com/", wait_until="load")

    page.wait_for_selector('iframe[src*="recaptcha"]', timeout=10000)

    k = page.evaluate("""
    () => {
        const iframe = document.querySelector('iframe[src*="recaptcha"]');
        if (!iframe) return null;
        return new URL(iframe.src).searchParams.get("k");
    }
    """)

    print("Site key:", k)
    browser.close()