MCP Dotnet Sk Extensions Pro

模型上下文协议语义内核

实现MCP工具作为AI功能的无缝使用。

纽吉特

模型上下文协议

](https://www.nuget.org/packages/ModelContextProtocol-SemanticKernel)

McpDotNet（已过时）

](https://www.nuget.org/packages/McpDotNet.Extensions.SemanticKernel)

概述

---
title: "Overview"
---

graph LR;
    SK[Semantic Kernel
'OpenAI'] 
    MCPClient[MCPClient
'Function Calling']
    MCPServer[Local MCP Server
'server-github'] 
    GitHub[GitHub]

    SK  MCPClient
    MCPClient  MCPServer
    MCPServer  GitHub

⚙️ 用法

使用扩展方法注册特定的MCP功能/工具

注册单个功能或工具

// 💡Stdio
await kernel.Plugins.AddMcpFunctionsFromStdioServerAsync("GitHub", "npx", ["-y", "@modelcontextprotocol/server-github"]);

// 💡SSE
await kernel.Plugins.AddMcpFunctionsFromSseServerAsync("GitHub", new Uri("http://localhost:12345"));

从Claude Desktop配置注册MCP服务器

也可以注册在Claude Desktop中注册的所有Stdio MCP服务器：

// 💡Stdio MCP Tools defined in claude_desktop_config.json
await kernel.Plugins.AddToolsFromClaudeDesktopConfigAsync(cancellationToken: cts.Token);

💻 完整标准示例

代码

var builder = Kernel.CreateBuilder();
builder.Services.AddLogging(c => c.AddDebug().SetMinimumLevel(LogLevel.Trace));

builder.Services.AddOpenAIChatCompletion(
    serviceId: "openai",
    modelId: "gpt-4o-mini",
    apiKey: Environment.GetEnvironmentVariable("OPENAI_API_KEY")!);

var kernel = builder.Build();

// 💡 Add this line to enable MCP functions from a Stdio server named "Everything"
await kernel.Plugins.AddMcpFunctionsFromStdioServerAsync("Everything", "npx", ["-y", "@modelcontextprotocol/server-github"]);

var executionSettings = new OpenAIPromptExecutionSettings
{
    Temperature = 0,
    FunctionChoiceBehavior = FunctionChoiceBehavior.Auto()
};

var prompt = "Please call the echo tool with the string 'Hello Stef!' and give me the response as-is.";
var result = await kernel.InvokePromptAsync(prompt, new(executionSettings)).ConfigureAwait(false);
Console.WriteLine($"\n\n{prompt}\n{result}");

结果

Please call the echo tool with the string 'Hello Stef!' and give me the response as-is.
Echo: Hello Stef!

💻 完整SSE（服务器发送事件）示例

代码

var builder = Kernel.CreateBuilder();
builder.Services.AddLogging(c => c.AddDebug().SetMinimumLevel(LogLevel.Trace));

builder.Services.AddOpenAIChatCompletion(
    serviceId: "openai",
    modelId: "gpt-4o-mini",
    apiKey: Environment.GetEnvironmentVariable("OPENAI_API_KEY")!);

var kernel = builder.Build();

// 💡 Add this line to enable MCP functions from a Sse server named "Github"
// - Note that a server must be running at the specified URL
await kernel.Plugins.AddMcpFunctionsFromSseServerAsync("GitHub", "http://localhost:12345");

var executionSettings = new OpenAIPromptExecutionSettings
{
    Temperature = 0,
    FunctionChoiceBehavior = FunctionChoiceBehavior.Auto()
};

var prompt = "Summarize the last 3 commits to the StefH/FluentBuilder repository.";
var result = await kernel.InvokePromptAsync(prompt, new(executionSettings)).ConfigureAwait(false);
Console.WriteLine($"\n\n{prompt}\n{result}");

结果

Summarize the last 3 commits to the StefH/FluentBuilder repository.
Here are the summaries of the last three commits to the `StefH/FluentBuilder` repository:

1. **Commit [2293880](https://github.com/StefH/FluentBuilder/commit/229388090f50a39f489e30cb535f67f3705cf61f)** (January 30, 2025)
   - **Author:** Stef Heyenrath
   - **Message:** Update README.md
   - **Details:** This commit updates the README.md file. The commit was verified and is valid.

2. **Commit [ae27064](https://github.com/StefH/FluentBuilder/commit/ae2706424c3b75613bf5625091aa2649fb33ecde)** (November 6, 2024)
   - **Author:** Stef Heyenrath
   - **Message:** Update README.md
   - **Details:** This commit also updates the README.md file. The commit was verified and is valid.

3. **Commit [53096a8](https://github.com/StefH/FluentBuilder/commit/53096a8b54a1029532425bc727fdd831e9ed0092)** (October 20, 2024)
   - **Author:** Stef Heyenrath
   - **Message:** Update README.md
   - **Details:** This commit updates the README.md file as well. The commit was verified and is valid.

All three commits involve updates to the README.md file, reflecting ongoing improvements or changes to the documentation.

📖 参考文献

• https://modelcontextprotocol.io
• https://github.com/PederHP/mcpdotnet
• https://github.com/modelcontextprotocol/csharp-sdk
• https://devblogs.microsoft.com/semantic-kernel/integrating-model-context-protocol-tools-with-semantic-kernel-a-step-by-step-guide/