GeeTest v3 + v4

import requests
import time

API_KEY = "YOUR_API_KEY"
BASE_URL = "https://api.capbypass.pro"

def solve_geetest(website_url, *, gt=None, challenge=None, captcha_id=None, proxy=None):
    task = {
        "type": "GeetestTask" if proxy else "GeetestTaskProxyLess",
        "websiteURL": website_url,
    }
    if challenge:                # v3
        task["gt"] = gt
        task["challenge"] = challenge
    else:                        # v4
        task["captchaId"] = captcha_id
    if proxy:
        task["proxy"] = proxy

    res = requests.post(f"{BASE_URL}/createTask", json={
        "clientKey": API_KEY,
        "task": task,
    }).json()
    task_id = res["taskId"]

    while True:
        result = requests.post(f"{BASE_URL}/getTaskResult", json={
            "clientKey": API_KEY,
            "taskId": task_id,
        }).json()

        if result["status"] == "ready":
            return result["solution"]

        if result.get("errorId"):
            raise Exception(result.get("errorDescription"))

        time.sleep(1)

# v3 example
v3 = solve_geetest(
    "https://example.com/login",
    gt="81388ea1fc187e0c335c0a8907ff2625",
    challenge="7b33c5254c55c432cf558767e36b8ef5",
)
print(v3["seccode"])

# v4 example
v4 = solve_geetest(
    "https://example.com/login",
    captcha_id="fcd636b4514bf7ac4143922550b3008b",
)
print(v4["pass_token"])

const API_KEY = 'YOUR_API_KEY';
const BASE_URL = 'https://api.capbypass.pro';

async function solveGeetest({ websiteURL, gt, challenge, captchaId, proxy }) {
  const task = {
    type: proxy ? 'GeetestTask' : 'GeetestTaskProxyLess',
    websiteURL,
  };
  if (challenge) {              // v3
    task.gt = gt;
    task.challenge = challenge;
  } else {                       // v4
    task.captchaId = captchaId;
  }
  if (proxy) task.proxy = proxy;

  const createRes = await fetch(`${BASE_URL}/createTask`, {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ clientKey: API_KEY, task }),
  });
  const { taskId } = await createRes.json();

  while (true) {
    const resultRes = await fetch(`${BASE_URL}/getTaskResult`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ clientKey: API_KEY, taskId }),
    });
    const result = await resultRes.json();

    if (result.status === 'ready') return result.solution;
    if (result.errorId) throw new Error(result.errorDescription);

    await new Promise((r) => setTimeout(r, 1000));
  }
}

// v3 example
const v3 = await solveGeetest({
  websiteURL: 'https://example.com/login',
  gt: '81388ea1fc187e0c335c0a8907ff2625',
  challenge: '7b33c5254c55c432cf558767e36b8ef5',
});
console.log(v3.seccode);

// v4 example
const v4 = await solveGeetest({
  websiteURL: 'https://example.com/login',
  captchaId: 'fcd636b4514bf7ac4143922550b3008b',
});
console.log(v4.pass_token);