Document Index
AI-powered captcha solving — API reference, playground, SDKs, and the browser extension.
Welcome to the NoCaptchaAI docs. Solve captchas programmatically with our AI-powered API, or use the browser extension for no-code solving.
Get started
Quickstart
Grab your API key and solve your first captcha in minutes.
Authentication
How to authenticate requests with your API key.
API Reference
Interactive playground + multi-language code samples for every endpoint.
SDKs & Code Samples
Copy-paste client code for Python, JavaScript, and Go.
Browser Extension
Install the Chrome / Firefox extension for automatic solving.
Error Handling
Interpret error codes and build resilient integrations.
Base URL
All API requests go to:
https://api.nocaptchaai.comAuthenticate by passing your API key as clientKey in the request body (or the
apikey header for the synchronous /solve endpoint).
Supported captcha types
ReCAPTCHA v2
BLS OCR Captcha
Cloudflare TokenTurnstile Token
OCR/Text Captcha
GeeTest v4 ImageGeeTest v4 Token
MTCaptcha
Binance
AWS WAF
TikTok