Microsoft.IdentityModel.Tokens 8.10.0

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.Tokens.

Packages Downloads
Microsoft.IdentityModel.JsonWebTokens
Includes types that provide support for creating, serializing and validating JSON Web Tokens.
131
Microsoft.IdentityModel.JsonWebTokens
Includes types that provide support for creating, serializing and validating JSON Web Tokens.
158
Microsoft.IdentityModel.JsonWebTokens
Includes types that provide support for creating, serializing and validating JSON Web Tokens.
166
Microsoft.IdentityModel.JsonWebTokens
Includes types that provide support for creating, serializing and validating JSON Web Tokens. This is a newer, faster version of System.IdentityModel.Tokens.Jwt that has additional functionality.
149
Microsoft.IdentityModel.JsonWebTokens
Includes types that provide support for creating, serializing and validating JSON Web Tokens. This is a newer, faster version of System.IdentityModel.Tokens.Jwt that has additional functionality.
157
Microsoft.IdentityModel.JsonWebTokens
Includes types that provide support for creating, serializing and validating JSON Web Tokens. This is a newer, faster version of System.IdentityModel.Tokens.Jwt that has additional functionality.
274
Microsoft.IdentityModel.Protocols
Provides base protocol support for OpenIdConnect and WsFederation.
120
Microsoft.IdentityModel.Protocols
Provides base protocol support for OpenIdConnect and WsFederation.
127
Microsoft.IdentityModel.Protocols
Provides base protocol support for OpenIdConnect and WsFederation.
138
Microsoft.IdentityModel.Protocols
Provides base protocol support for OpenIdConnect and WsFederation.
173
Microsoft.IdentityModel.Protocols
Provides base protocol support for OpenIdConnect and WsFederation.
174
Microsoft.IdentityModel.Protocols
Provides base protocol support for OpenIdConnect and WsFederation.
281
Microsoft.IdentityModel.Tokens.Saml
Includes types that provide support for SamlTokens version 1 and 2.
123
Microsoft.IdentityModel.Tokens.Saml
Includes types that provide support for SamlTokens version 1 and 2.
278
Microsoft.IdentityModel.Xml
Includes types that provide support for Reading / Writing XML with Enveloped Signatures.
169
System.IdentityModel.Tokens.Jwt
Includes types that provide support for creating, serializing and validating JSON Web Tokens.
122
System.IdentityModel.Tokens.Jwt
Includes types that provide support for creating, serializing and validating JSON Web Tokens.
135
System.IdentityModel.Tokens.Jwt
Includes types that provide support for creating, serializing and validating JSON Web Tokens.
146
System.IdentityModel.Tokens.Jwt
Includes types that provide support for creating, serializing and validating JSON Web Tokens.
159
System.IdentityModel.Tokens.Jwt
Includes types that provide support for creating, serializing and validating JSON Web Tokens. As of IdentityModel 7x, this is a legacy tool that should be replaced with Microsoft.IdentityModel.JsonWebTokens.
184

Version Downloads Last updated
8.15.0 18 11/19/2025
8.14.0 47 08/16/2025
8.13.1 52 08/11/2025
8.13.0 61 07/22/2025
8.12.1 70 06/19/2025
8.12.0 57 06/04/2025
8.11.0 55 05/26/2025
8.10.0 81 05/19/2025
8.9.0 85 04/25/2025
8.8.0 72 04/09/2025
8.7.0 75 03/31/2025
8.6.1 103 03/31/2025
8.6.0 95 03/31/2025
8.5.0 292 02/16/2025
8.4.0 81 02/16/2025
8.3.1 78 03/31/2025
8.3.0 68 12/13/2024
8.2.1 73 11/20/2024
8.2.0 82 11/06/2024
8.1.2 83 10/18/2024
8.1.1 79 10/21/2024
8.1.0 78 11/26/2024
8.0.2 83 11/10/2024
8.0.1 110 08/04/2024
8.0.0 103 07/22/2024
8.0.0-preview1 94 07/22/2024
7.7.1 96 07/22/2024
7.7.0 103 07/22/2024
7.6.3 102 07/22/2024
7.6.2 105 07/22/2024
7.6.1 97 07/22/2024
7.6.0 95 07/22/2024
7.5.2 96 07/22/2024
7.5.1 102 07/22/2024
7.5.0 112 07/22/2024
7.4.1 101 07/22/2024
7.4.0 111 07/22/2024
7.4.0-preview1 90 07/22/2024
7.3.1 94 07/22/2024
7.3.0 104 07/22/2024
7.2.0 100 07/22/2024
7.1.2 159 02/04/2024
7.0.3 110 02/13/2024
7.0.2 105 07/22/2024
7.0.1 104 07/22/2024
7.0.0 102 07/22/2024
7.0.0-preview5 107 07/22/2024
7.0.0-preview4 95 07/22/2024
7.0.0-preview3 90 07/22/2024
7.0.0-preview2 91 07/22/2024
7.0.0-preview 107 07/22/2024
6.36.0 122 07/22/2024
6.35.1 110 07/22/2024
6.35.0 155 06/24/2024
6.34.0 120 07/22/2024
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6.32.3 107 07/22/2024
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6.30.1 108 07/22/2024
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6.28.1 87 07/22/2024
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6.25.1 115 07/22/2024
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6.24.0 145 07/14/2024
6.23.1 87 07/22/2024
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6.22.1 87 07/22/2024
6.22.0 108 07/22/2024
6.21.0 133 02/19/2024
6.20.0 121 07/22/2024
6.19.0 105 07/22/2024
6.18.0 134 07/22/2024
6.17.0 88 07/22/2024
6.16.0 122 07/22/2024
6.15.1 138 02/04/2024
6.15.0 120 07/22/2024
6.14.1 112 07/22/2024
6.14.0 104 07/22/2024
6.13.1 113 07/22/2024
6.12.2 117 07/22/2024
6.12.1 100 07/22/2024
6.12.0 101 07/22/2024
6.11.1 77 07/22/2024
6.11.0 109 07/22/2024
6.10.2 123 07/22/2024
6.10.1 123 07/22/2024
6.10.0 168 02/04/2024
6.9.0 129 07/22/2024
6.8.0 148 02/04/2024
6.7.2-preview-10803222715 106 07/22/2024
6.7.1 104 07/22/2024
6.6.1-preview-10617201806 101 07/22/2024
6.6.0 108 07/22/2024
6.5.1 99 07/22/2024
6.5.0 96 07/22/2024
5.7.0 100 07/22/2024
5.6.0 95 07/22/2024
5.5.0 115 07/22/2024
5.4.0 89 07/22/2024
5.3.0 113 07/22/2024
5.2.4 97 07/22/2024
5.2.2 96 07/22/2024
5.2.1 106 07/22/2024
5.1.5 93 07/22/2024
5.1.4 102 07/22/2024
5.1.3 100 07/22/2024
5.1.2 102 07/22/2024
5.0.0 106 07/22/2024