IdentityModel is a .NET library for claims-based identity, OAuth 2.0 and OpenID Connect.

It provides an object model to interact with the endpoints defined in the various OAuth and OpenId Connect specifications in the form of:

• types to represent the requests and responses
• extension methods to invoke requests
• constants defined in the specifications, such as standard scope, claim, and parameter names
• other convenience methods for performing common identity related operations

IdentityModel targets .NET Standard 2.0, making it suitable for .NET and .NET Framework.

For more documentation, please visit readthedocs.

• Certified OIDC client library for native apps: IdentityModel.OidcClient
• Id token validator for IdentityModel.OidcClient based on the Microsoft JWT handler: IdentityModel.OidcClient.IdentityTokenValidator
• DPoP extensions for IdentityModel.OidcClient: IdentityModel.OidcClient.DPoP
• Authentication handler for introspection tokens: IdentityModel.AspNetCore.OAuth2Introspection

IdentityModel is released as open source under the Apache 2.0 license. Bug reports and contributions are welcome at the GitHub repository.