* [Casdoor v4.20.0](https://github.com/casdoor/casdoor) – UI-first Identity and Access Management platform supporting various authentication protocols.

* [dex v2.46.0](https://github.com/dexidp/dex) – Federated OpenID Connect provider that connects to various identity providers for authentication.

* [OpenID Connect SDK (client and server) for Go v3.51.14](https://github.com/zitadel/oidc) – OpenID Connect client and server library for Go, certified by the OpenID Foundation.

* [TLSPROXY v0.26.0](https://github.com/c2FmZQ/tlsproxy) – TLS termination proxy with automatic certificate management, QUIC/ECH support, and client authentication for forwarding or passthrough to backend services.

* [Login.gov Identity Provider (IdP) 2026-10-06T182107](https://github.com/18F/identity-idp) – Core code base and documentation for the identity management system powering secure access to government services.