Introduction

Captcha-solver is an API service for automated captcha solving: reCAPTCHA v2, reCAPTCHA v3, Cloudflare Turnstile. The request/response format is compatible with anti-captcha (createTask/getTaskResult), so existing client libraries work without rewriting — just point them at our base URL.

You get an API key right after registration, and pay only for solved tasks.

Documentation sections#

• Authentication — API key, base URL, request format.
• How it works — the asynchronous model: createTask, polling getTaskResult, task lifetime.
• Methods — createTask, getTaskResult, getBalance, and supported captcha types.
• Code examples — ready-to-use examples in several languages.
• Errors — error codes and how to handle them.
• Vibe coding: llms.txt — a link for your AI assistant to write the integration for you.