reCAPTCHA v2

import time
import requests

API = "https://"
KEY = "YOUR_API_KEY"

# 1. create a task: the price is held, not charged
task = requests.post(f"{API}/createTask", json={
    "clientKey": KEY,
    "task": {
        "type": "RecaptchaV2Task",
        "websiteURL": "https://example.com/login",
        "websiteKey": "6Le-SITE-KEY",
        "proxyType": "http",
        "proxyAddress": "203.0.113.10",
        "proxyPort": 8080,
        "proxyLogin": "user",
        "proxyPassword": "pass",
    },
}).json()
if task["errorId"]:
    raise RuntimeError(task["errorCode"])

# 2. poll the result (or pass "callbackUrl" and get a signed webhook)
while True:
    time.sleep(3)
    res = requests.post(f"{API}/getTaskResult",
                        json={"clientKey": KEY, "taskId": task["taskId"]}).json()
    if res["errorId"]:
        raise RuntimeError(res["errorCode"])
    if res["status"] == "ready":
        print(res["solution"]["gRecaptchaResponse"])
        break