複製Claude Code ←→ MCP Server ←→ 外部工具（資料庫、API、檔案系統...）

複製{
  "mcpServers": {
    "server-name": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-name"],
      "env": {
        "ENV_VAR": "value"
      }
    }
  }
}

複製{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-filesystem",
        "/Users/daniel/projects",
        "/Users/daniel/documents"
      ]
    }
  }
}

複製{
  "mcpServers": {
    "github": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-github"],
      "env": {
        "GITHUB_PERSONAL_ACCESS_TOKEN": "ghp_xxxxxxxxxxxx"
      }
    }
  }
}

複製{
  "mcpServers": {
    "postgres": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-postgres",
        "postgresql://user:password@localhost/mydb"
      ]
    }
  }
}

複製/mcp

複製幫我查資料庫裡 users 表有多少筆資料

複製讀取 ~/projects/blog/README.md 的內容

複製去 GitHub 看一下我最近有哪些 open PR

複製import { Server } from "@modelcontextprotocol/sdk/server/index.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";

const server = new Server(
  { name: "my-server", version: "1.0.0" },
  { capabilities: { tools: {} } }
);

// 定義工具清單
server.setRequestHandler("tools/list", async () => ({
  tools: [{
    name: "get_data",
    description: "從自訂來源取得資料",
    inputSchema: {
      type: "object",
      properties: {
        query: { type: "string", description: "查詢條件" }
      }
    }
  }]
}));

// 實作工具
server.setRequestHandler("tools/call", async (request) => {
  if (request.params.name === "get_data") {
    const query = request.params.arguments.query;
    // 在這裡實作你的邏輯
    return { content: [{ type: "text", text: `查詢結果：${query}` }] };
  }
});

const transport = new StdioServerTransport();
await server.connect(transport);

複製{
  "mcpServers": {
    "remote": {
      "url": "https://my-mcp-server.example.com/sse"
    }
  }
}