The Hello World Server

Let's create a server that simply returns a greeting.

Basic Code

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

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

async function main() { const transport = new StdioServerTransport(); await server.connect(transport); }

main().catch(console.error);

This server does nothing yet, but it initializes the protocol connection.

Assignment: Compile this code using tsc and run it. It should hang—this means it is waiting for input on Stdio!