| 1 | 1,905 | 8,441 | u2f | Library for handling registration and authentication of U2F devices |
| 2 | 5,731 | 6,021 | castle-rb | Castle protects web and mobile applications from account takeovers,
fake accounts, bots... |
| 3 | 18,074 | 55,182 | userbin | Secure your application with multi-factor authentication, user activity monitoring, and... |
| 4 | 30,989 | 87,723 | devise_castle | Devise extension for Castle. Secure your authentication stack with real-time monitoring... |
| 5 | 32,296 | 87,723 | devise_userbin | Devise extension for Userbin. Secure your application with multi-factor authentication,... |