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
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/cd9340856ed85215a911c97c44d52373f6cba2f9
1,247
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/36be7ed6d6d56b7da0a2891e3de7ecc2aa48eecd
537
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/7e8bbb70b266b2fdaf0b11ec47fb3077761fb6bf
11
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/ae1a6cbe225b99c0bf38b7e31bf60cb653b73a52
11
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/aee5e4080331553ea9dfb7fb388b6d72f715bf6a
11
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/d12868dd7c10ff0433c16b06d3b59d03c40d987a
11
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/febee99db845fd8766a13bdb391a07c3ee90b4ba
11
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/f6897a5bb7ca767df8eb465bf15b193c878fffbf
11
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/718171eeb4bd236ab4f0d9b1ecd97ecc63ec0be1
11
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/8af96e042134fb3b2f21df26dd0f32ea1c00dd37
11
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/4a42afc5aea63750638e118560d43db04bd9ccc2
11
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/ecdcc752d4639061c2c49727ee77a1039bbbca22
11
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.
11
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 running on Windows, this library has a dependency on Microsoft.Data.SqlClient.SNI on .NET Framework and runtime.native.System.Data.SqlClient.sni on .NET Core, which requires the Microsoft Visual C++ Redistributable to be installed: https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads When using NuGet 3.x this package requires at least version 3.4.
11
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.
11
Microsoft.Data.SqlClient
The current data provider for SQL Server and Azure SQL databases. This has replaced System.Data.SqlClient. These classes provide access to SQL 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.
11
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/2e51a0b6eba74bdf02aee71944e973487937cb99
10
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/9699b939f94b7524a178821d78addefa5af5d750
10
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/f0f9de5692adf1c0576de062f93c6ab7b176433f
10
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/440dadc05b2bed38e6a726c2492db90e77d43c62
10

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8.15.0 2 12/11/2025
8.14.0 4 09/16/2025
8.13.1 5 08/13/2025
8.13.0 5 08/14/2025
8.12.1 7 07/10/2025
8.12.0 6 07/10/2025
8.11.0 6 07/10/2025
8.10.0 7 05/23/2025
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8.7.0 7 05/23/2025
8.6.1 9 05/23/2025
8.6.0 8 02/26/2025
8.5.0 9 02/19/2025
8.4.0 7 05/23/2025
8.3.1 7 05/23/2025
8.3.0 7 05/23/2025
8.2.1 7 05/23/2025
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8.1.2 7 05/23/2025
8.1.1 7 05/23/2025
8.0.1 8 05/23/2025
8.0.0 7 05/23/2025
8.0.0-preview1 9 02/19/2025
7.7.1 7 05/23/2025
7.7.0 8 05/23/2025
7.6.3 7 05/23/2025
7.6.2 7 05/23/2025
7.6.1 8 05/23/2025
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7.5.2 7 05/23/2025
7.5.1 7 05/23/2025
7.5.0 8 05/23/2025
7.4.1 7 05/23/2025
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7.4.0-preview1 9 02/19/2025
7.3.1 7 05/23/2025
7.3.0 8 05/23/2025
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7.1.2 7 05/23/2025
7.0.3 7 05/23/2025
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7.0.0-preview5 10 02/19/2025
7.0.0-preview4 9 02/19/2025
7.0.0-preview3 9 02/19/2025
7.0.0-preview2 9 02/19/2025
7.0.0-preview 9 02/20/2025
6.36.0 8 02/19/2025
6.35.1 9 02/19/2025
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6.10.0 1,469 08/06/2024
6.9.0 7 05/23/2025
6.8.0 8 05/23/2025
6.7.2-preview-10803222715 9 02/19/2025
6.7.1 7 05/23/2025
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6.5.1 7 05/23/2025
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2.0.0 8 05/23/2025