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vscode集成MCP Server

news 2026/6/1 11:31:09

前言

本文介绍如何在 VS Code 中集成自行开发的 MCP (Model Context Protocol) Server。通过配置 .vscode/mcp.json 文件，可以将自定义的 MCP Server 注册到 VS Code 的 GitHub Copilot 中，从而让 AI 助手能够调用用户开发的工具函数。整个过程包括：编写 MCP Server 代码、配置服务器启动参数、启动服务并测试调用。

注意，Copilot不是必须的，只是vscode 官方对copilot集成更好，其它第三方的模型也能使用MCP Server。

使用Copilot

编写数学工具的mcp server. math.py

from fastmcp import FastMCP
from typing import TypeAlias, Union
from datetime import datetimemcp = FastMCP("math")Number: TypeAlias = Union[int, float]@mcp.tool()
def add(a: Number, b: Number) -> Number:"""Add two numbersArgs:a (Number): The first numberb (Number): The second numberReturns:Number: The sum of a and b"""return a + b@mcp.tool()
def subtract(a: Number, b: Number) -> Number:"""Subtract two numbersArgs:a (Number): The first numberb (Number): The second numberReturns:Number: The difference of a and b"""return a - b@mcp.tool()
def multiply(a: Number, b: Number) -> Number:"""Multiply two numbersArgs:a (Number): The first numberb (Number): The second numberReturns:Number: The product of a and b"""return a * b@mcp.tool()
def divide(a: Number, b: Number) -> Number:"""Divide two numbersArgs:a (Number): The numeratorb (Number): The denominatorReturns:Number: The quotient of a and bRaises:ValueError: If b is zero"""if b == 0:raise ValueError("Cannot divide by zero")return a / b@mcp.tool()
def is_greater_than(a: Number, b: Number) -> bool:"""Check if a is greater than bArgs:a (Number): The first numberb (Number): The second numberReturns:bool: True if a is greater than b, False otherwise"""return a > b@mcp.tool()
async def get_weather(city: str) -> str:  """Get weather for a given city.Args:city (str): The city nameReturns:str: A string describing the weather in the given city"""return f"It's always sunny in {city}!"@mcp.tool()
async def get_current_datetime() -> str:"""Get current date and time.Returns:str: The current date and time in YYYY-MM-DD HH:MM:SS %z format"""return datetime.now().strftime("%Y-%m-%d %H:%M:%S %z")if __name__ == "__main__":# mcp.run(transport="http", host="localhost", port=8001, show_banner=False)mcp.run(transport="stdio", show_banner=False)

创建.vscode/mcp.json

{"servers": {"math": {"command": "uv","args": ["--directory","/home/rainux/Documents/workspace/py-dev/mcp-local","run","math.py"]}}
}

在mcp.json文件中会显示一个启动的图标，点击启动。
在copilot 聊天窗口中，右下角有一个"配置工具"的图标，点击后在弹出的菜单中可以看到一个math server.
提问测试。如果没调用到mcp tool，可以尝试按Ctrl + Shift + P，输入Reload Window 来重新加载窗口，或者在mcp.json文件中重启mcp server，或者重启vscode.

非Copilot, 以通义灵码为例

在通义灵码的聊天窗口中按提示添加MCP Server 的配置，在手动添加的配置文件中填写如下内容。保存后通义灵码会自动启动MCP Server，然后测试能否调用MCP Tool即可。

{"mcpServers": {"math": {"type": "stdio","command": "uv","args": ["--directory","/home/rainux/Documents/workspace/py-dev/mcp-local","run","math.py"],"env": {"ROOT_DIR": "/home/rainux/Documents/workspace/py-dev/mcp-local"}}}
}