This page contains community provided open source authentication options for ASP.NET Core. This page will be periodically updated as new providers become available.
| [AspNet.Security.OpenIdConnect.Server (ASOS)](https://github.com/aspnet-contrib/AspNet.Security.OpenIdConnect.Server) | Low-level/protocol-first OpenID Connect server framework for ASP.NET Core and OWIN/Katana |
| [IdentityServer4](https://identityserver.io/) | OpenID Connect and OAuth 2.0 framework for ASP.NET Core - officially certified by the OpenID Foundation and under governance of the .NET Foundation |
| [OpenIddict](https://github.com/openiddict/openiddict-core) | Easy-to-use OpenID Connect server for ASP.NET Core |