MCP Servers

MCP Server for NPM Package Info

Provides a tool to fetch npm package information via the Model Context Protocol.

README

MCP Server for NPM Package Info

A Model Context Protocol server that provides a tool to fetch npm package information.

Security Disclaimer: this repository is intentionally vulnerable, intended to be used as an educational tool for MCP Server security.

How to use the MCP Server

Define the MCP Server in your Agent MCP configuration, as follows:

{
    "servers": {
        "npm-and-node-tools": {
            "type": "http",
            "url": "http://localhost:3500/mcp"
        }
    },
    "inputs": []
}

Features

Exposes a getNpmPackageInfo tool using MCP
Uses HTTP (Streamable HTTP) transport for remote connections
Returns structured package information
Supports session management for stateful connections

Installation

npm install

Usage

Start the server:

npm start

The server will start listening on port 3000 by default. You can customize the port by setting the PORT environment variable:

PORT=3500 npm start

This server is designed to be used with IDE integrations and AI agents that support the Model Context Protocol over HTTP.

Tool: getNpmPackageInfo

Parameters:

packageName (string): The name of the npm package to look up

Returns:

packageInfo (object): JSON object containing all available information about the package

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