# NordCaptcha docs > Privacy-first CAPTCHA. Embed a widget, verify the single-use token server-side. ## Docs - [Overview](http://app.nordcaptcha.com/docs/overview.md): What NordCaptcha is and how it fits into your app. - [Integration guide](http://app.nordcaptcha.com/docs/integration.md): Embed the widget and verify tokens on your server. - [FAQ](http://app.nordcaptcha.com/docs/faq.md): Common questions about tokens, keys, and errors.