Hello World MCP Server

@MCP-Mirror

Repository

Basic information

About Hello World MCP Server

Mirror of

#mcp #server #typescript

Hello World MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "jageenshukla_hello-world-mcp-server": {
      "command": "npx",
      "args": [
        "@modelcontextprotocol/inspector",
        "./dist/server.js"
      ]
    }
  }
}

Hello World MCP Server tools

Tool list not available yet

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Fetch the live tool list by running this server in a temporary sandbox using the button above.

Overview

What is Hello World MCP Server?

It is a demonstration MCP (Model Context Protocol) server built with TypeScript using the MCP SDK and Express. It shows how to integrate MCP tools, prompts, and server-sent events (SSE) endpoints. Designed for developers learning to build MCP servers for existing services.

How to use Hello World MCP Server?

Clone the repository, install dependencies (npm install), configure the .env file (default port 4000), build the project (npm run build), and start the server (npm start). For testing, use the MCP Inspector: npx @modelcontextprotocol/inspector ./dist/server.js. Development mode with live reloading is available via npm run dev.

Key features of Hello World MCP Server

MCP SDK integration with tools and prompts
Express framework for SSE and message communication
Environment configuration via .env files
Fully typed TypeScript codebase

Use cases of Hello World MCP Server

Learning how to build an MCP server from scratch
Creating a bridge between existing services and AI agents
Prototyping MCP-based applications for proof-of-concepts
Integrating with local LLM chatbots using external tools

Frequently asked questions

What are the runtime requirements for Hello World MCP Server?

Node.js v16 or higher and npm or yarn are required.

How can I test the tools and prompts of Hello World MCP Server?

Use the MCP Inspector by running `npx @modelcontextprotocol/inspector ./dist/server.js`.

How do I change the default port?

Edit the `PORT` variable in the `.env` file (default is 4000).

What should I do if the port is already in use?

Update the `PORT` variable in the `.env` file to an available port.

Does Hello World MCP Server support live reloading during development?

Yes, use `npm run dev` to start the server with live reloading and detailed logs.

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