Microsoft.IdentityModel.Protocols.OpenIdConnect 8.15.0

IdentityModel Extensions for .NET

Nuget

The IdentityModel Extensions for .NET library provides robust tools to enhance authentication and authorization workflows in your .NET applications. Backed by the Entra team, this library simplifies working with OpenID Connect (OIDC), OAuth2.0, and JSON Web Tokens (JWT) in .NET.

Whether you're building secure APIs, implementing token validation, or managing claims, this library is designed to handle the heavy lifting for you.

Why IdentityModel?

  • Widely Adopted: Trusted by thousands of developers to integrate OIDC and OAuth2.0 standards.
  • Secure by Design: Built with security as a priority to reduce common vulnerabilities.
  • Extensible: Easily extend or customize for advanced use cases.
  • Battle hardened: Validates 5+ trillion requests daily, and growing.

Versions

You can find the release notes for each version here. Older versions can be found here.

Version Lifecycle and Support Matrix

See Long Term Support policy for details.

Major Version Currently Supported Version Status
8.x from 8.0.1 to Nuget Active (Current) - Tied to .NET 9 (STS) & 10 (LTS) ~ Nov, 2028
7.x 7.7.1 Supported (LTS) through .NET 8 LTS lifetime Nov 10, 2026.
⚠️Versions < 7.7.1 not supported.
5.x 5.7.0 Supported (LTS), tied to the Microsoft.Owin.Security.JWT 4.2.2 lifetime.
⚠️Versions < 5.7.0 not supported.

IdentityModel 8.x

Version 8.x introduces significant updates and improvements:

  • Enhanced Performance: Optimized token validation to handle high-throughput scenarios.
  • .NET Compatibility: Fully compatible with .NET 9.

🧭LTS: Supported through .NET 9 LTS lifetime: May 12, 2026 + .NET 10 LTS (~3 years).

IdentityModel 7.x

IdentityModel 7x introduced several improvements related to serialization and consistency in the API, which provide a better user experience for developers, as well as full AOT compatibility on .NET, and considerable performance improvements compared to IdentityModel 6x.

🧭LTS: Supported through .NET 8 LTS lifetime: Nov 10, 2026.

⚡Recommendation: Move to 8.x.

IdentityModel 6.x

🧭Deprecated: Support ended with .NET 7 LTS lifetime: May 2024.

⚡Action: Move to 8.x.

IdentityModel 5.x

Not a recommended version

🧭LTS: Supported for Microsoft.Owin.Security.JWT

⚡Action: Move to 8.x.

Samples and Documentation

The scenarios supported by IdentityModel extensions for .NET are described in Scenarios. The libraries are in particular used part of ASP.NET security to validate tokens in ASP.NET Web Apps and Web APIs. To learn more about token validation, and find samples, see:

Community Help and Support

Report a bug or request a feature directly in the GitHub repo.

Have a design proposal? Please submit a design proposal before starting work on a PR to ensure it means the goals/objectives of this library and it's priorities.

We leverage Stack Overflow to work with the community on supporting Microsoft Entra and its SDKs, including this one! We highly recommend you ask your questions on Stack Overflow (we're all on there!) Also browse existing issues to see if someone has had your question before.

We recommend you use the "identityModel" tag so we can see it! Here is the latest Q&A on Stack Overflow for IdentityModel: https://stackoverflow.com/questions/tagged/identityModel

Security Reporting

See SECURITY.md

Contributing

All code is licensed under the MIT license and we triage actively on GitHub. We enthusiastically welcome contributions and feedback. See Contributing.md for guidelines, branch information, build instructions, and legalese.

License

Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT License (the "License");

We Value and Adhere to the Microsoft Open Source Code of Conduct

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.

Showing the top 20 packages that depend on Microsoft.IdentityModel.Protocols.OpenIdConnect.

Packages Downloads
IdentityServer4
OpenID Connect and OAuth 2.0 Framework for ASP.NET Core
57
IdentityServer4
OpenID Connect and OAuth 2.0 Framework for ASP.NET Core
81
IdentityServer4
OpenID Connect and OAuth 2.0 Framework for ASP.NET Core
690
Microsoft.AspNetCore.Authentication.JwtBearer
ASP.NET Core middleware that enables an application to receive an OpenID Connect bearer token. This package was built from the source code at https://github.com/aspnet/AspNetCore/tree/844a82e37cae48af2ab2ee4f39b41283e6bb4f0e
10,357
Microsoft.AspNetCore.Authentication.JwtBearer
ASP.NET Core middleware that enables an application to receive an OpenID Connect bearer token. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/2924ca229b3d6c91b7c9eded119b31dfd7aa1fef
9,092
Microsoft.AspNetCore.Authentication.JwtBearer
ASP.NET Core middleware that enables an application to receive an OpenID Connect bearer token. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/32e8c8cae5b1a4dd752d0a42a6f8a2813f75f173
23,094
Microsoft.AspNetCore.Authentication.JwtBearer
ASP.NET Core middleware that enables an application to receive an OpenID Connect bearer token. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/3fe12b935c03138f76364dc877a7e069e254b5b2
1,414
Microsoft.AspNetCore.Authentication.OpenIdConnect
ASP.NET Core middleware that enables an application to support the OpenID Connect authentication workflow. This package was built from the source code at https://github.com/aspnet/AspNetCore/tree/2b7e994b8a304700a09617ffc5052f0d943bbcba
465
Microsoft.AspNetCore.Authentication.OpenIdConnect
ASP.NET Core middleware that enables an application to support the OpenID Connect authentication workflow. This package was built from the source code at https://github.com/aspnet/AspNetCore/tree/458d97420a173fe87487b58ec4aa47a4c9dc4710
66
Microsoft.AspNetCore.Authentication.OpenIdConnect
ASP.NET Core middleware that enables an application to support the OpenID Connect authentication workflow. This package was built from the source code at https://github.com/aspnet/AspNetCore/tree/4768f164d522e128f91827810527730f7468fd74
56
Microsoft.AspNetCore.Authentication.OpenIdConnect
ASP.NET Core middleware that enables an application to support the OpenID Connect authentication workflow. This package was built from the source code at https://github.com/aspnet/AspNetCore/tree/66de493473521e173fa15ca557f5f97601cedb23
57
Microsoft.AspNetCore.Authentication.OpenIdConnect
ASP.NET Core middleware that enables an application to support the OpenID Connect authentication workflow. This package was built from the source code at https://github.com/aspnet/AspNetCore/tree/844a82e37cae48af2ab2ee4f39b41283e6bb4f0e
10,342
Microsoft.AspNetCore.Authentication.OpenIdConnect
ASP.NET Core middleware that enables an application to support the OpenID Connect authentication workflow. This package was built from the source code at https://github.com/aspnet/AspNetCore/tree/d1fa2cb155ab9226f20b87ab0d7a1eb16b8a8b69
58
Microsoft.AspNetCore.Authentication.OpenIdConnect
ASP.NET Core middleware that enables an application to support the OpenID Connect authentication workflow. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/02c6de4ba6022025fcda7581415f310f8c73cdc3
58
Microsoft.AspNetCore.Authentication.OpenIdConnect
ASP.NET Core middleware that enables an application to support the OpenID Connect authentication workflow. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/2924ca229b3d6c91b7c9eded119b31dfd7aa1fef
53
Microsoft.AspNetCore.Authentication.OpenIdConnect
ASP.NET Core middleware that enables an application to support the OpenID Connect authentication workflow. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/dc5e11abdb05b322f4b74b3afbcfb352fe984b2e
53
Microsoft.AspNetCore.Authentication.OpenIdConnect
ASP.NET Core middleware that enables an application to support the OpenID Connect authentication workflow. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/e56abc45c4f8adc518abfc11a59849d616431e2c
53
Microsoft.Data.SqlClient
Provides the data provider for SQL Server. These classes provide access to versions of SQL Server and encapsulate database-specific protocols, including tabular data stream (TDS) Commonly Used Types: Microsoft.Data.SqlClient.SqlConnection Microsoft.Data.SqlClient.SqlException Microsoft.Data.SqlClient.SqlParameter Microsoft.Data.SqlClient.SqlDataReader Microsoft.Data.SqlClient.SqlCommand Microsoft.Data.SqlClient.SqlTransaction Microsoft.Data.SqlClient.SqlParameterCollection Microsoft.Data.SqlClient.SqlClientFactory When using NuGet 3.x this package requires at least version 3.4.
53
Microsoft.Data.SqlClient
Provides the data provider for SQL Server. These classes provide access to versions of SQL Server and encapsulate database-specific protocols, including tabular data stream (TDS) Commonly Used Types: Microsoft.Data.SqlClient.SqlConnection Microsoft.Data.SqlClient.SqlException Microsoft.Data.SqlClient.SqlParameter Microsoft.Data.SqlClient.SqlDataReader Microsoft.Data.SqlClient.SqlCommand Microsoft.Data.SqlClient.SqlTransaction Microsoft.Data.SqlClient.SqlParameterCollection Microsoft.Data.SqlClient.SqlClientFactory When using NuGet 3.x this package requires at least version 3.4.
56

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8.0.1 43 07/25/2024
8.0.0 35 07/22/2024
8.0.0-preview1 36 06/20/2024
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7.6.3 39 07/18/2024
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7.0.0 39 09/19/2023
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7.0.0-preview2 45 08/16/2023
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6.36.0 41 07/22/2024
6.35.1 41 07/22/2024
6.35.0 34 03/11/2024
6.34.0 30 03/11/2024
6.33.0 36 10/05/2023
6.32.3 52 09/21/2023
6.32.2 38 09/20/2023
6.32.1 45 08/16/2023
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6.31.0 52 06/12/2023
6.30.1 49 06/07/2023
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6.29.0 41 06/18/2023
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6.23.1 38 09/24/2022
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6.22.0 48 08/13/2022
6.21.0 51 09/12/2022
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6.14.1 42 09/21/2022
6.14.0 46 09/17/2022
6.13.1 53 09/21/2022
6.12.2 52 09/12/2022
6.12.1 45 09/21/2022
6.12.0 38 09/24/2022
6.11.1 53 09/24/2022
6.11.0 48 09/24/2022
6.10.2 49 09/12/2022
6.10.1 46 09/24/2022
6.10.0 24,398 09/23/2022
6.9.0 60 07/01/2022
6.8.0 54 06/27/2022
6.7.2-preview-10803222715 39 09/12/2022
6.7.1 6,159 06/27/2022
6.6.0 47 09/22/2022
6.5.1 46 09/21/2022
6.5.0 57 09/22/2022
5.7.0 40 03/11/2024
5.6.0 433 06/27/2022
5.5.0 10,370 06/27/2022
5.4.0 73 09/24/2022
5.3.0 58 09/21/2022
5.2.4 52 04/30/2023
5.2.2 32 09/22/2022
5.2.1 57 05/04/2023
2.1.5 57 09/12/2022
2.1.4 57 09/24/2022
2.1.3 43 09/23/2022
2.1.2 47 09/12/2022
2.0.0 32 09/24/2022