* [GoBetterAuth v2.13.0](https://github.com/GoBetterAuth/go-better-auth) – Scalable authentication for Go apps or standalone servers offering email/password auth, sessions, OAuth, and extensible hooks.

* [Better Auth v1.5.6](https://github.com/better-auth/better-auth) – Framework-agnostic authentication and authorization library for TypeScript with a plugin ecosystem for advanced features.

* [Casdoor Go SDK v1.45.0](https://github.com/casdoor/casdoor-go-sdk) – Go client library providing OAuth2-based authentication, authorization, user and resource management APIs.

* [Passkey login for Astro, SvelteKit and other frameworks v2.1.1](https://github.com/passlock-dev/passlock) – TypeScript library simplifying WebAuthn and passkey registration and authentication for frontend and backend frameworks.

* [Fingerprint Scanner v1.0.2](https://github.com/antoinevastel/fpscanner) – Lightweight browser fingerprinting library for bot detection.

* [oc-chatgpt-multi-auth v5.4.6](https://github.com/ndycode/oc-chatgpt-multi-auth) – OpenCode plugin that enables ChatGPT Plus/Pro via OAuth with GPT-5/Codex model presets and multi-account failover.

* [GCE Metadata Server Emulator v4.2.4](https://github.com/salrashid123/gce_metadata_server) – Emulates Google Compute Engine metadata server, returning access and ID tokens plus instance and project metadata for local testing.

* [Official Clerk JavaScript SDKs @clerk/clerk-expo@2....](https://github.com/clerk/javascript) – SDKs for building user management and authentication experiences.