Microsoft.IdentityModel.Protocols.OpenIdConnect 8.12.1

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/aspnet/AspNetCore/tree/aee5e4080331553ea9dfb7fb388b6d72f715bf6a
32
IdentityServer4
OpenID Connect and OAuth 2.0 Framework for ASP.NET Core
32
Microsoft.AspNetCore.Authentication.JwtBearer
ASP.NET Core middleware that enables an application to receive an OpenID Connect bearer token.
32
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/3f1acb59718cadf111a0a796681e3d3509bb3381
32
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/0bc3c376f0cd14335e8b3afca69596acabeb1f80
31
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/331b52b370cd4e7fe2919d4d4cda27412e2ab1cc
31
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/55738ff96b832439076e25584cfe0eb3bace9b01
31
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/da7e9894ce22ef8cc02e5acc56e95a6f8cf8f644
31
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/Security/tree/93926543f8469614c2feb23de8a8c0561b8b2463
31
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/d504a7b7dab277712646747e9f5cce0d9507245e
31
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/bc25dd5d39fd057f7cb28acb5ad4d9e925a375de
30
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/62c098bc170f50feca15916e81cb7f321ffc52ff
30
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/c04846dc66cc97f71d83a83a15437828435f5d44
30
Microsoft.AspNetCore.Authentication.JwtBearer
ASP.NET Core middleware that enables an application to receive an OpenID Connect bearer token.
30
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/f050ae044be8bddc002ab88736e4bf78dc822122
30
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/564969bca155b40432d101ec35f24a0e81e6afa0
29
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/371a26f07b23ad77c636332c2dfc0cbd1d8137ba
29
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
29
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/0a2e366eaf4d29b24b9a98e5782a04bef573189e
29
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
29

Version Downloads Last updated
8.12.1 2 6/19/2025
8.12.0 3 6/5/2025
8.11.0 5 5/24/2025
8.10.0 5 5/17/2025
8.9.0 8 5/1/2025
8.8.0 9 4/15/2025
8.7.0 11 3/25/2025
8.6.1 15 3/11/2025
8.6.0 13 2/25/2025
8.5.0 10 3/1/2025
8.4.0 11 3/1/2025
8.3.1 12 3/1/2025
8.3.0 10 1/6/2025
8.2.1 14 1/13/2025
8.2.0 11 1/11/2025
8.1.2 13 1/7/2025
8.1.1 12 12/10/2024
8.1.0 15 9/29/2024
8.0.2 16 8/23/2024
8.0.1 12 8/5/2024
8.0.0 17 8/9/2024
8.0.0-preview1 19 8/9/2024
7.7.1 17 7/20/2024
7.7.0 20 7/20/2024
7.6.3 14 7/21/2024
7.6.2 13 8/9/2024
7.6.1 14 8/9/2024
7.6.0 16 6/25/2024
7.5.2 16 7/10/2024
7.5.1 20 4/23/2024
7.5.0 16 4/23/2024
7.4.1 23 4/23/2024
7.4.0 20 3/8/2024
7.4.0-preview1 17 3/8/2024
7.3.1 22 3/5/2024
7.3.0 20 3/8/2024
7.2.0 19 3/8/2024
7.1.2 23 3/8/2024
7.0.3 17 3/8/2024
7.0.2 21 3/8/2024
7.0.1 20 3/8/2024
7.0.0 21 3/8/2024
7.0.0-preview5 18 3/8/2024
7.0.0-preview4 19 3/8/2024
7.0.0-preview3 19 3/8/2024
7.0.0-preview2 19 3/8/2024
7.0.0-preview 19 3/8/2024
6.36.0 17 7/20/2024
6.35.1 18 7/18/2024
6.35.0 19 3/8/2024
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6.32.3 22 3/8/2024
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6.31.0 25 7/2/2023
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6.14.1 20 3/8/2024
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6.11.1 20 3/8/2024
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6.10.2 21 3/8/2024
6.10.1 22 3/8/2024
6.10.0 23 3/8/2024
6.9.0 19 3/8/2024
6.8.0 21 3/8/2024
6.7.2-preview-10803222715 18 3/8/2024
6.7.1 21 3/8/2024
6.6.0 22 3/8/2024
6.5.1 21 3/8/2024
6.5.0 26 3/8/2024
5.7.0 21 3/8/2024
5.6.0 24 4/12/2022
5.5.0 21 4/12/2022
5.4.0 17 3/8/2024
5.3.0 21 3/8/2024
5.2.4 21 3/8/2024
5.2.2 22 3/8/2024
5.2.1 17 3/8/2024
2.1.5 13 3/8/2024
2.1.4 18 3/8/2024
2.1.3 14 3/8/2024
2.1.2 22 3/8/2024
2.0.0 19 3/8/2024