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The C# implementation of the OpenID, OAuth protocols. Use DotNetOpenAuth to create Identity Providers and Identity Consumers (Relying Parties).

The following sample implementations are available:

  • OpenID Provider (MVC / WebForms)
  • OpenID Relying Party (Classic ASP / MVC / WebForms)
  • OpenID Web Ring Provider / Relying Party
  • OAuth Authorisation Server
  • OAuth Resource Server
  • OAuth Service Provider
  • OAuth Client
  • OAuth Consumer (Web/Wpf)

All samples are available in the Samples Repository


DotNetOpenAuth utilises the following open source projects:

..and is supported by the following open source friendly companies: