Ejemplos de código

Python

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Requisitos: Python 3.8 o superior y pip install requests. Antes de ejecutar, define la variable de entorno:

export YESCAPTCHA_CLIENT_KEY=your_client_key

Consultar el saldo

No cobra puntos; sirve para confirmar que el ClientKey es correcto:

"""Check the balance. getBalance is free and is a quick way to verify your clientKey."""
import os

import requests

CLIENT_KEY = os.environ["YESCAPTCHA_CLIENT_KEY"]

r = requests.post(
    "https://api.yescaptcha.com/getBalance",
    json={"clientKey": CLIENT_KEY},
    timeout=30,
)
data = r.json()
if data.get("errorId"):
    # e.g. ERROR_KEY_DOES_NOT_EXIST when the clientKey is wrong
    print("error:", data.get("errorCode"), data.get("errorDescription"))
else:
    print("balance (points):", data["balance"])

Resolver un captcha de imagen

El tipo síncrono ImageToTextTaskOcrBase devuelve el resultado en una sola solicitud. Imagen de ejemplo: captcha.jpg.

"""First request: read an alphanumeric image captcha with ImageToTextTaskOcrBase
(synchronous, 2 points per image).

Usage:
    export YESCAPTCHA_CLIENT_KEY=your_client_key
    python quickstart.py captcha.png
"""
import base64
import os
import sys

import requests

CLIENT_KEY = os.environ["YESCAPTCHA_CLIENT_KEY"]
image_path = sys.argv[1] if len(sys.argv) > 1 else "captcha.png"

with open(image_path, "rb") as f:
    body = base64.b64encode(f.read()).decode()  # no "data:" prefix

r = requests.post(
    "https://api.yescaptcha.com/createTask",
    json={
        "clientKey": CLIENT_KEY,
        "task": {"type": "ImageToTextTaskOcrBase", "body": body},
    },
    timeout=30,
)
data = r.json()
if data.get("errorId"):
    raise SystemExit(f"{data.get('errorCode')}: {data.get('errorDescription')}")
print("text:", data["solution"]["text"])

Un cliente reutilizable

Copia el siguiente archivo en tu proyecto; funciona con tipos síncronos y asíncronos:

"""A small client you can copy into your project: create tasks, poll results, check the balance.

    from yescaptcha import YesCaptcha
    client = YesCaptcha(os.environ["YESCAPTCHA_CLIENT_KEY"])
    solution = client.solve({
        "type": "NoCaptchaTaskProxyless",
        "websiteURL": "https://www.google.com/recaptcha/api2/demo",
        "websiteKey": "6Le-wvkSAAAAAPBMRTvw0Q4Muexq9bi0DJwx_mJ-",
    })
    print(solution["gRecaptchaResponse"])
"""
import os
import time

import requests


class YesCaptchaError(Exception):
    def __init__(self, code, description):
        super().__init__(f"{code}: {description}")
        self.code = code
        self.description = description


class YesCaptcha:
    def __init__(self, client_key, endpoint="https://api.yescaptcha.com", poll_interval=5, timeout=180):
        self.client_key = client_key
        self.endpoint = endpoint.rstrip("/")
        self.poll_interval = poll_interval  # 5 s: polling the same taskId more often only returns "processing"
        self.timeout = timeout
        self.session = requests.Session()

    def call(self, method, payload=None):
        body = {"clientKey": self.client_key, **(payload or {})}
        data = self.session.post(f"{self.endpoint}/{method}", json=body, timeout=30).json()
        if data.get("errorId"):
            raise YesCaptchaError(data.get("errorCode"), data.get("errorDescription"))
        return data

    def balance(self):
        return self.call("getBalance")["balance"]

    def solve(self, task):
        created = self.call("createTask", {"task": task})
        if created.get("status") == "ready":  # synchronous types return the solution directly
            return created["solution"]
        task_id = created["taskId"]
        deadline = time.time() + self.timeout
        while time.time() < deadline:
            time.sleep(self.poll_interval)
            result = self.call("getTaskResult", {"taskId": task_id})
            if result.get("status") == "ready":
                return result["solution"]
        raise TimeoutError(f"task {task_id} not ready after {self.timeout}s")


if __name__ == "__main__":
    client = YesCaptcha(os.environ["YESCAPTCHA_CLIENT_KEY"])
    print("balance:", client.balance())

from yescaptcha import YesCaptcha

client = YesCaptcha(os.environ["YESCAPTCHA_CLIENT_KEY"])
solution = client.solve({
    "type": "HCaptchaTaskProxyless",
    "websiteURL": "https://accounts.hcaptcha.com/demo",
    "websiteKey": "a5f74b19-9e45-40e0-b45d-47ff91b7a6c2",
})
print(solution["gRecaptchaResponse"])

Si hay un error, se lanza YesCaptchaError; e.code es el código de error (consulta Códigos de error).

Controlar las tareas simultáneas

Al enviar tareas en lote, limita cuántas solicitudes se procesan al mismo tiempo y, si recibes ERROR_THREADS_MAXIMUM, espera un momento y vuelve a intentarlo (requiere pip install aiohttp). Más información en Límite de tareas simultáneas y pausa automática:

"""Limit concurrency: keep the number of requests waiting for a result below your limit, and back off
on ERROR_THREADS_MAXIMUM (rejected requests are not charged). Requires: pip install aiohttp"""
import asyncio
import os

import aiohttp

CLIENT_KEY = os.environ["YESCAPTCHA_CLIENT_KEY"]
LIMIT = 15  # below your concurrency limit
sem = asyncio.Semaphore(LIMIT)


async def solve(session, task):
    async with sem:  # at most LIMIT requests in progress at a time
        result = {}
        for attempt in range(5):
            async with session.post(
                "https://api.yescaptcha.com/createTask",
                json={"clientKey": CLIENT_KEY, "task": task},
            ) as resp:
                result = await resp.json()
            if result.get("errorCode") != "ERROR_THREADS_MAXIMUM":
                return result
            await asyncio.sleep(1 + attempt)  # over the limit: wait and retry
        return result


async def main(tasks):
    async with aiohttp.ClientSession() as session:
        return await asyncio.gather(*(solve(session, t) for t in tasks))


if __name__ == "__main__":
    print(asyncio.run(main([])))

Enviar un token de reCAPTCHA

Enviarlo directamente con requests: consulta Completar reCAPTCHA con un token
Rellenarlo en el navegador con Selenium: consulta Completar reCAPTCHA con un token
Simular clics en las preguntas de imágenes con Selenium: consulta Clics simulados en reCAPTCHA v2 de reconocimiento de imágenes, Clics simulados en hCaptcha de reconocimiento de imágenes