* [oidc-provider v9.7.1](https://github.com/panva/node-oidc-provider) – OAuth 2.0 Authorization Server implementation with OpenID Connect support and additional features.

* [Doorkeeper::OpenidConnect v1.9.0](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.