Yandex SmartCaptcha
Yandex SmartCaptcha lets you identify whether the user is a human or a bot.
Getting started
Set up your first widget and verify a user
Step-by-step guides
How to perform routine operations
Widget installation methods
Learn about ways to integrate SmartCaptcha with your website
Invisible CAPTCHA
Only display the CAPTCHA for requests flagged as suspicious by the service
CAPTCHA in React
React package for SmartCaptcha integration
Quotas and limits
Technical and organizational limitations
Tutorials
Step-by-step instructions for using SmartCaptcha
Pricing policy
Service pricing and cost calculation
Demo page
See how SmartCaptcha works