ModelContextProtocol.AspNetCore 0.3.0-preview.2

Prefix Reserved

This is a prerelease version of ModelContextProtocol.AspNetCore.

There is a newer prerelease version of this package available.
See the version list below for details.

dotnet add package ModelContextProtocol.AspNetCore --version 0.3.0-preview.2

NuGet\Install-Package ModelContextProtocol.AspNetCore -Version 0.3.0-preview.2

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="ModelContextProtocol.AspNetCore" Version="0.3.0-preview.2" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="ModelContextProtocol.AspNetCore" Version="0.3.0-preview.2" />
                    

                            Directory.Packages.props

<PackageReference Include="ModelContextProtocol.AspNetCore" />
                    

                            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 ModelContextProtocol.AspNetCore --version 0.3.0-preview.2

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: ModelContextProtocol.AspNetCore, 0.3.0-preview.2"

#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 ModelContextProtocol.AspNetCore@0.3.0-preview.2

#: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=ModelContextProtocol.AspNetCore&version=0.3.0-preview.2&prerelease
                    

                            Install as a Cake Addin

#tool nuget:?package=ModelContextProtocol.AspNetCore&version=0.3.0-preview.2&prerelease
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

ASP.NET Core extensions for the MCP C# SDK

The official C# SDK for the Model Context Protocol, enabling .NET applications, services, and libraries to implement and interact with MCP clients and servers. Please visit our API documentation for more details on available functionality.

This project is in preview; breaking changes can be introduced without prior notice.

About MCP

The Model Context Protocol (MCP) is an open protocol that standardizes how applications provide context to Large Language Models (LLMs). It enables secure integration between LLMs and various data sources and tools.

For more information about MCP:

Installation

To get started, install the package from NuGet

dotnet new web
dotnet add package ModelContextProtocol.AspNetCore --prerelease

Getting Started

// Program.cs
using ModelContextProtocol.Server;
using System.ComponentModel;

var builder = WebApplication.CreateBuilder(args);
builder.Services.AddMcpServer()
    .WithHttpTransport()
    .WithToolsFromAssembly();
var app = builder.Build();

app.MapMcp();

app.Run("http://localhost:3001");

[McpServerToolType]
public static class EchoTool
{
    [McpServerTool, Description("Echoes the message back to the client.")]
    public static string Echo(string message) => $"hello {message}";
}

Product	Compatible and additional computed target framework versions.
.NET	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.

Product

.NET

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net8.0
- ModelContextProtocol (>= 0.3.0-preview.2)
net9.0
- ModelContextProtocol (>= 0.3.0-preview.2)

NuGet packages (22)

Showing the top 5 NuGet packages that depend on ModelContextProtocol.AspNetCore:

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Senparc.Weixin.AspNet 微信 SDK - Senparc.Weixin.AspNet 模块 Senparc.Weixin SDK 开源项目： https://github.com/JeffreySu/WeiXinMPSDK	308.8K
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GitHub repositories (21)

Showing the top 20 popular GitHub repositories that depend on ModelContextProtocol.AspNetCore:

Repository	Stars
JeffreySu/WeiXinMPSDK 微信全平台 .NET SDK， Senparc.Weixin for C#，支持 .NET Framework 及 .NET Core、.NET 8.0。已支持微信公众号、小程序、小游戏、微信支付、企业微信/企业号、开放平台、JSSDK、微信周边等全平台。 WeChat SDK for C#.	8.7K
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microsoft/mcp Catalog of official Microsoft MCP (Model Context Protocol) server implementations for AI-powered data access and tool integration	1.7K
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CommunityToolkit/Aspire A community project with additional components and extensions for .NET Aspire	479
foxminchan/BookWorm The practical implementation of .NET Aspire using Microservices	429
jsakamoto/BlazingStory The clone of "Storybook" for Blazor, a frontend workshop for building UI components and pages in isolation.	401
CervantesSec/cervantes Cervantes is an open-source, collaborative platform designed specifically for pentesters and red teams. It serves as a comprehensive management tool, streamlining the organization of projects, clients, vulnerabilities, and reports in a single, centralized location.	400
IvanMurzak/Unity-MCP MCP Server + Plugin for Unity Editor and Unity game. The Plugin allows to connect to MCP clients like Claude Desktop or others.	393
Senparc/Senparc.CO2NET Base Common Library, support for.NET Framework &.NET Core	363
daohainam/microservice-patterns Microservice pattern demos (Saga, EventSourcing, CQRS...) running on .NET Aspire	236
junkai-li/NetCoreKevin 基于NET8搭建DDD-微服务-现代化Saas企业级WebAPI架构支持：IDS4单点登录、多缓存、自动任务、分布式、一库多租户、日志、授权和鉴权、CAP集成事件、SignalR、领域事件、ESL、MCP协议服务、IOC模块化注入、Cors、Quartz自动任务、多短信集成、AI智能体、AISemanticKernel集成、OCR验证码识别、API多版本兼容、单元集成测试	214
J-Tech-Japan/Sekiban Sekiban - an Opinionated Event Sourcing and CQRS Framework using C#. It can store data into Azure Cosmos DB, AWS Dynamo DB or Postgres	197
microsoft/mcp-gateway MCP Gateway is a reverse proxy and management layer for MCP servers, enabling scalable, session-aware routing and lifecycle management of MCP servers in Kubernetes environments.	181
wisedev-code/MaIN.NET NuGet package designed to make LLMs, RAG, and Agents first-class citizens in .NET	157
AIDotNet/Text2Sql.Net Text2Sql.Net 是一个使用DotNet和Semantic Kernel开发的Text2Sql工具	140
Azure/azure-sdk-tools Tools repository leveraged by the Azure SDK team.	121

Version	Downloads	Last Updated
0.3.0-preview.4	16,286	8/20/2025
0.3.0-preview.3	46,212	7/16/2025
0.3.0-preview.2	20,764	7/3/2025
0.3.0-preview.1	44,586	6/20/2025
0.2.0-preview.3	41,391	6/3/2025
0.2.0-preview.2	12,904	5/29/2025
0.2.0-preview.1	37,713	5/16/2025
0.1.0-preview.14	5,693	5/15/2025
0.1.0-preview.13	7,893	5/10/2025
0.1.0-preview.12	5,441	5/5/2025
0.1.0-preview.11	27,569	4/24/2025
0.1.0-preview.10	11,921	4/19/2025
0.1.0-preview.9	7,589	4/15/2025
0.1.0-preview.8	6,284	4/11/2025
0.1.0-preview.7	1,796	4/9/2025
0.1.0-preview.6	3,994	4/4/2025
0.1.0-preview.5	1,212	4/3/2025
0.1.0-preview.4	1,986	3/31/2025