Microsoft.Extensions.AI 9.9.0

Prefix Reserved
.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.6.2 This package targets .NET Framework 4.6.2. The package is compatible with this framework or higher. 
dotnet add package Microsoft.Extensions.AI --version 9.9.0
                    


                    

                
NuGet\Install-Package Microsoft.Extensions.AI -Version 9.9.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Microsoft.Extensions.AI" Version="9.9.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Microsoft.Extensions.AI" Version="9.9.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Microsoft.Extensions.AI" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Microsoft.Extensions.AI --version 9.9.0
                    


                    

                
#r "nuget: Microsoft.Extensions.AI, 9.9.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Microsoft.Extensions.AI@9.9.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Microsoft.Extensions.AI&version=9.9.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Microsoft.Extensions.AI&version=9.9.0
                    


                            Install as a Cake Tool

Microsoft.Extensions.AI

.NET developers need to integrate and interact with a growing variety of artificial intelligence (AI) services in their apps. The Microsoft.Extensions.AI libraries provide a unified approach for representing generative AI components, and enable seamless integration and interoperability with various AI services.

The packages

The Microsoft.Extensions.AI.Abstractions package provides the core exchange types, including IChatClient and IEmbeddingGenerator<TInput,TEmbedding>. Any .NET library that provides an LLM client can implement the IChatClient interface to enable seamless integration with consuming code.

The Microsoft.Extensions.AI package has an implicit dependency on the Microsoft.Extensions.AI.Abstractions package. This package enables you to easily integrate components such as automatic function tool invocation, telemetry, and caching into your applications using familiar dependency injection and middleware patterns. For example, it provides the UseOpenTelemetry(ChatClientBuilder, ILoggerFactory, String, Action<OpenTelemetryChatClient>) extension method, which adds OpenTelemetry support to the chat client pipeline.

Which package to reference

Libraries that provide implementations of the abstractions typically reference only Microsoft.Extensions.AI.Abstractions.

To also have access to higher-level utilities for working with generative AI components, reference the Microsoft.Extensions.AI package instead (which itself references Microsoft.Extensions.AI.Abstractions). Most consuming applications and services should reference the Microsoft.Extensions.AI package along with one or more libraries that provide concrete implementations of the abstractions.

Install the package

From the command-line:

dotnet add package Microsoft.Extensions.AI

Or directly in the C# project file:

<ItemGroup>
  <PackageReference Include="Microsoft.Extensions.AI" Version="[CURRENTVERSION]" />
</ItemGroup>

Documentation

Refer to the Microsoft.Extensions.AI libraries documentation for more information and API usage examples.

Feedback & Contributing

We welcome feedback and contributions in our GitHub repo.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 is compatible.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (74)

Showing the top 5 NuGet packages that depend on Microsoft.Extensions.AI:

Package Downloads
Microsoft.SemanticKernel.Abstractions

Semantic Kernel interfaces and abstractions. This package is automatically installed by Semantic Kernel packages if needed.
XrmToolBoxPackage

Add the references required to develop a XrmToolBox plugin
Aspire.Azure.AI.OpenAI

A client for Azure OpenAI that integrates with Aspire, including logging and telemetry.
Aspire.OpenAI

A client for OpenAI that integrates with Aspire, including metrics and telemetry.
CommunityToolkit.Aspire.OllamaSharp

A .NET Aspire client integration for the OllamaSharp library.

GitHub repositories (35)

Showing the top 20 popular GitHub repositories that depend on Microsoft.Extensions.AI:

Repository Stars
microsoft/semantic-kernel
Integrate cutting-edge LLM technology quickly and easily into your apps
dotnet/aspire
Tools, templates, and packages to accelerate building observable, production-ready apps
dotnet/maui-samples
Samples for .NET Multi-Platform App UI (.NET MAUI)
modelcontextprotocol/csharp-sdk
The official C# SDK for Model Context Protocol servers and clients. Maintained in collaboration with Microsoft.
microsoft/Generative-AI-for-beginners-dotnet
Five lessons, learn how to really apply AI to your .NET Applications
abpframework/abp-samples
Sample solutions built with the ABP Framework
bitfoundation/bitplatform
Build all of your apps using what you already know and love ❤️
microsoft/ai-dev-gallery
An open-source project for Windows developers to learn how to add AI with local models and APIs to Windows apps.
awaescher/OllamaSharp
The easiest way to use Ollama in .NET
tryAGI/LangChain
C# implementation of LangChain. We try to be as close to the original as possible in terms of abstractions, but are open to new entities.
getcellm/cellm
Use LLMs in Excel formulas
dotnet/ai-samples
MscrmTools/XrmToolBox
An application that gather multiple tools to ease the customization and configuration of Microsoft Dynamics CRM/365/Dataverse/PowerApps
CommunityToolkit/Aspire
A community project with additional components and extensions for .NET Aspire
PowerShell/AIShell
An interactive shell to work with AI-powered assistance providers
DevExpress/Blazor
DevExpress UI for Blazor
Deali-Axy/StarBlog
☀StarBlog 是一个基于 .NET Core 开发的现代博客系统，支持 Markdown 文章导入，遵循 RESTful 接口规范。前端基于 Vue + ElementUI 开发，可作为 .NET Core 入门学习项目，同时配套了一系列开发笔记，记录了从零开始构建这个博客系统的全过程，可以帮助学习理解 .Net Core 项目的开发流程。
thangchung/practical-dotnet-aspire
The practical .NET Aspire builds on the coffeeshop app business domain
axzxs2001/Asp.NetCoreExperiment
原来所有项目都移动到**OleVersion**目录下进行保留。新的案例装以.net 5.0为主，一部分对以前案例进行升级，一部分将以前的工作经验总结出来，以供大家参考！
afrise/MCPSharp
MCPSharp is a .NET library that helps you build Model Context Protocol (MCP) servers and clients - the standardized API protocol used by AI assistants and models.
Version Downloads Last Updated
9.9.0 48,137 9/9/2025
9.8.0 181,037 8/12/2025
9.7.1 222,191 7/15/2025
9.7.0 37,850 7/8/2025
9.6.0 270,158 6/10/2025
9.5.0 601,514 5/16/2025
9.5.0-preview.1.25262.9 15,236 5/13/2025
9.4.4-preview.1.25259.16 10,922 5/10/2025
9.4.3-preview.1.25230.7 33,394 5/1/2025
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9.3.0-preview.1.25161.3 131,074 3/11/2025
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