Features
Seamless Auth is designed as authentication infrastructure rather than a hosted identity product. These features reflect that design philosophy.
Open source authentication stack
Seamless Auth is implemented as a set of composable, open source services. You can inspect, modify, and deploy the full authentication system yourself.
Framework agnostic core with adapters
Authentication logic lives in a framework independent core. Adapters integrate that logic into specific server frameworks without duplication.
Frontend session integration
The React SDK exposes authenticated session state directly in your UI. There are no redirects, hosted login pages, or client side token handling.