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

* [Burrow v0.1.4](https://github.com/ArkGravity/burrow) – Lightweight OpenID Connect identity provider for small teams, centralizing shared SSO and access control with a single Go backend and React UI.

* [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.