1、前言

1、前言

MCP Server 示例

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详见原文,以获得最新的内容:【AI入门】MCP 初探 - 掘金


1、前言

大模型火了一阵子了,最近又火了一个技术 —— MCP

在看了一些介绍后,恰巧之前通过 Ollama 也部署了本地大模型,正好可以试试本地 MCP,兴许可以「以后 自己开发些 MCP,然后通过本地大模型调用」,这样就能摆脱 UI、Terminal 来执行特定的操作了~~

2、准备

2.1、安装 Ollama

访问 Ollama 官网: https://ollama.com/download ,下载需要的版本,并安装: image-20250413152913247

安装指定的大模型: image-20250413152923270

【PS】我目前在本地安装了以下几个大模型:

$ ollama list
NAME                       ID              SIZE      MODIFIED
mistral-small3.1:latest    b9aaf0c2586a    15 GB     12 minutes ago
phi4:latest                ac896e5b8b34    9.1 GB    7 weeks ago
deepseek-r1:14b            ea35dfe18182    9.0 GB    8 weeks ago
bge-m3:latest              790764642607    1.2 GB    8 weeks ago
deepseek-r1:32b            38056bbcbb2d    19 GB     8 weeks ago
llama3.2:latest            a80c4f17acd5    2.0 GB    8 weeks ago

2.2、安装 CherryStudio

这是一个本地大模型的客户端,以便配合 Ollama 来使用本地大模型

访问官网 https://docs.cherry-ai.com/cherry-studio/download ,下载需要的版本,并安装: image-20250413152932729

3、安装、开发 MCP

以下内容,以通过 Python 开发为例进行介绍。

3.1、安装 UV

uv 是一个 MCP 推荐的 Python 包管理工具,可以参考其官网 进行安装: https://docs.astral.sh/uv/getting-started/installation/#installation-methods

我的安装方式&过程如下:

$ wget -qO- https://astral.sh/uv/install.sh | sh
downloading uv 0.6.14 aarch64-apple-darwin
no checksums to verify
installing to /Users/mengxinxin/.local/bin
  uv
  uvx
everything\'s installed!

To add $HOME/.local/bin to your PATH, either restart your shell or run:

    source $HOME/.local/bin/env (sh, bash, zsh)
    source $HOME/.local/bin/env.fish (fish)
WARNING: The following commands are shadowed by other commands in your PATH: uv uvx


$ uv version
uv 0.6.14 (a4cec56dc 2025-04-09)

3.2、创建&初始化一个 MCP项目

# 初始化项目
$ uv init hello_mcp_server

# 进入项目目录
$ cd hello_mcp_server

# 创建环境
$ uv venv

# 激活环境
$ source .venv/bin/activate

# 安装依赖
$ uv add "mcp[cli]"

3.3、开发&调试 MCP

示例代码如下:

from mcp.server.fastmcp import FastMCP
from pydantic import Field


# Initialize FastMCP server
mcp = FastMCP("hello-mcp-server", log_level="ERROR")


# 注册工具的装饰器,可以很方便的把一个函数注册为工具
@mcp.tool()
async def hello_mcp_server(username: str = Field(description="用户名")) -> str:
    """当用户向 MCP 打招呼时,调用此工具

    Args:
        username: 用户名

    Returns:
        回复用户的问好
    """
    return f"Hello, {username},我是 MCP 示例!"


def main():
    print("Hello from hello-mcp-server!")


if __name__ == "__main__":
    main()

执行如下名,可获得调试地址:

$ mcp dev hello_mcp_server.py
Starting MCP inspector...
⚙️ Proxy server listening on port 6277
🔍 MCP Inspector is up and running at http://127.0.0.1:6274 🚀

在浏览器中访问该调试地址: http://127.0.0.1:6274 ,并点击 Connect: image-20250413152946973

然后如图操作、验证工具: image-20250413152955931

4、接入 CherryStudio

4.1、添加 MCP 服务器

image-20250413153006995

4.2、设置大模型

image-20250413153016232

4.3、在对话中启用 MCP 服务器

image-20250413153025004

4.4、完成,试一下吧~

image-20250413153031450

以上,搞定,收工~ ✌🏻

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