mcp -playground

MCP Server example with TypeScript

Installation

Run this command in your terminal to add the MCP server to Claude Code.

Run in terminal:

Command

claude mcp add --transport stdio psaboia-mcp-server-playground node build/index.js \
  --env PORT="TCP port to bind MCP server (e.g., 8080)" \
  --env MCP_HOST="Hostname or IP to bind (e.g., 0.0.0.0)"

How to use

MCP Server Playground is a TypeScript-based MCP server project designed as a learning playground to experiment with the MCP protocol and integrations with tools like Claude Desktop and Cursor IDE. The server is modular and ready to be extended with additional commands and integrations. To use it, clone the repository, install dependencies, and build the TypeScript source to JavaScript. After building, run the server with Node.js, which will start the MCP interface and expose the tools defined in src. You can also run the MCP inspector tool to diagnose protocol interactions. The project is designed to work well with the IDE integrations mentioned, enabling a smoother development workflow while you add or modify commands and tools for your MCP environment.

How to install

Prerequisites:

Node.js (v12 or higher) and npm/yarn
A Git client to clone the repository

Installation steps:

Clone the repository: git clone <repo_url> cd mcp-server-playground
Install dependencies: npm install
Build the project (transpile TypeScript to JavaScript): npm run build
Run the server (example using the built entry point): npm run start # if defined, or node build/index.js

Optional Smithery installation (to auto-install for Claude Desktop): npx -y @smithery/cli install mcp-server-playground --client claude

Additional notes

Notes and tips:

This project uses a .env file for configuration. Create a .env file at the project root to set options like PORT and MCP_HOST (see the mcp_config example for required environment variables).
The entry point after building is typically build/index.js (adjust if your build output path differs).
The repository includes common npm scripts (build, prepare, watch, inspector). Use npm run inspector to start the MCP inspector tool for debugging protocol exchanges.
If you plan to publish or reuse this as a package, ensure the npm_package field reflects the exact package name in package.json. This playground is primarily a local development/demo project and may not be published as a standard npm package.
For IDE integrations (Cursor IDE, Claude Desktop), ensure environment variables and network bindings allow the IDE to reach the MCP server endpoint.
If you modify TypeScript sources, run npm run build to regenerate the JavaScript output before starting the server.

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