...Node.js, Go, Python, React.js, React Native, Vanilla JS, etc. Supertokens architecture is optimized to add secure authentication for your users without compromising on user and developer experience. Frontend SDK: Manages session tokens and renders login UI widgets. Backend SDK: Provides APIs for sign-up, sign-in, signout, session refreshing etc. Your Frontend will talk to these APIs. SuperTokens Core: The HTTP service for the core auth logic and database operations. This service is used by the Backend SDK.