# Cloudflare Turnstile Cloudflare's privacy-friendly CAPTCHA alternative that verifies users invisibly or through a lightweight widget. CaptchaAI provides a valid token for site verification. ## Servers ``` https://ocr.captchaai.com/ ``` ## Download OpenAPI description [Cloudflare Turnstile](https://docs.captchaai.com/_bundle/api/turnstile.yaml) ## Other ### Submit Task - [POST /in.php](https://docs.captchaai.com/api/turnstile/other/submit-task.md): Send method=turnstile with sitekey and pageurl to POST /in.php. Returns a Task ID. ### Get Result - [POST /res.php](https://docs.captchaai.com/api/turnstile/other/get-result.md): Poll POST /res.php with the Task ID to receive the Turnstile token for submission.