* [Doorkeeper::OpenidConnect v2.0.0](https://github.com/doorkeeper-gem/doorkeeper-openid_connect) – OpenID Connect provider for Rails, adding authentication and identity features on top of an OAuth 2.0 framework. * [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.