Weather MCP Server

A Model Context Protocol (MCP) server that provides weather information using the OpenWeatherMap API.

Prerequisites

• Node.js (v14 or higher)
• npm
• OpenWeatherMap API key

Setup

1. Clone or download this repository

2. Install dependencies:

   npm install

3. Create a .env file in the root directory:

   touch .env

4. Add your OpenWeatherMap API key to the .env file:

   OPENWEATHER_API_KEY=your_openweathermap_api_key_here
   

   You can get a free API key from OpenWeatherMap.

Usage with Claude Code

Add this server to your MCP configuration file:

{
  "weather": {
    "command": "node",
    "args": ["index.js"],
    "cwd": "/path/to/weather-mcp-server"
  }
}

Available Tools

• getWeather: Get current weather information for any city

Testing

Run the test suite:

npm test

Environment Variables

Variable	Description	Required
OPENWEATHER_API_KEY	Your OpenWeatherMap API key	Yes

Example Usage

Once configured with Claude Code, you can ask for weather information:

• "What's the weather in London?"
• "Get me the current weather in Tokyo"
• "How's the weather in New York?"