模型上下文协议服务器构建工具

// ~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-filesystem", "/Users/you/projects"]
    }
  }
}

// hello-server.ts
import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { z } from "zod";

const server = new McpServer({ name: "hello", version: "1.0.0" });

server.tool(
  "greet",
  "Say hello to someone",
  { name: z.string() },
  async ({ name }) => ({
    content: [{ type: "text", text: `Hello, ${name}!` }]
  })
);

await server.connect(new StdioServerTransport());

┌──────────────────┐                    ┌──────────────────┐
│  CLAUDE DESKTOP  │                    │   YOUR SERVER    │
│                  │                    │                  │
│  "Search for     │  ── tools/call ──► │  search_files()  │
│   .ts files"     │                    │                  │
│                  │  ◄── results ────  │  ["a.ts","b.ts"] │
│  "Found 2 files" │                    │                  │
└──────────────────┘                    └──────────────────┘
        │                                        │
        └─────────── MCP Protocol ───────────────┘