MCP Servers

MCP Demo Server

A minimal NestJS MCP server skeleton for experimenting with the Model Context Protocol. Currently a placeholder with no implemented tools or resources.

Category

README

MCP Demo

A monorepo for experimenting with the Model Context Protocol (MCP). It contains two apps: an MCP server built with NestJS and an MCP client (placeholder for now).

Project structure

MCP-demo/
├── apps/
│   ├── mcp-server/    # NestJS app — MCP server (skeleton)
│   └── mcp-client/    # MCP client (placeholder)
├── package.json       # Root workspace config
└── README.md

Prerequisites

Node.js 18+ (22 recommended)
npm 9+

Getting started

Install dependencies from the repository root:

npm install

Scripts

Run these from the repository root:

Script	Description
`npm run start:server`	Start the NestJS MCP server
`npm run start:server:dev`	Start the server with hot reload
`npm run start:client`	Run the MCP client placeholder
`npm run build`	Build all workspaces

You can also run scripts inside a single app with the -w flag:

npm run start:dev -w @mcp-demo/mcp-server
npm run build -w @mcp-demo/mcp-client

Apps

`@mcp-demo/mcp-server`

A minimal NestJS application that will host the MCP server. It currently boots an empty AppModule with no routes or MCP integration yet.

Port: 3000 (override with the PORT environment variable)
Source: apps/mcp-server/src/

`@mcp-demo/mcp-client`

A placeholder MCP client. It currently prints Hello World and will be implemented in a future iteration.

Source: apps/mcp-client/src/

Workspaces

This project uses npm workspaces. Dependencies are hoisted to the root node_modules/, and each app under apps/ has its own package.json.

License

ISC

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