Weather Server MCP Server H72

🚀 Weather Server MCP Server

A tool for testing the weather server

This is a TypeScript-based MCP server that implements a weather information system. It demonstrates core MCP concepts in the following ways:

• Weather data resources with URIs and metadata
• Tools for fetching and updating weather information
• Generation of weather summary prompts

✨ Features

Resources

• List and access weather data via the weather:// URI.
• Each weather entry has a location, temperature, and metadata.
• The JSON MIME type is used for structured data access.

Tools

• fetch_weather - Fetch current weather information.

  • Accepts a location as a required parameter.
  • Retrieves weather data from an external API.

• update_weather - Update weather information.

  • Accepts a location and new weather data as required parameters.
  • Updates the weather data in the server state.

Prompts

• summarize_weather - Generate a summary of the current weather data.
  • Includes all weather entries as embedded resources.
  • Returns a structured prompt for LLM summarization.

📦 Installation

Development

Install dependencies:

npm install

Rename .envexample to .env:

mv .envexample .env

Update OPENWEATHER_API_KEY in the .env file:

OPENWEATHER_API_KEY=Your own OpenWeather API key

Build the server:

npm run build

Develop with automatic rebuild:

npm run watch

Integration with Claude Desktop

To use with Claude Desktop, add the server configuration:

On MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json On Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "weatherserver": {
      "command": "/path/to/weatherserver/build/index.js"
    }
  }
}

Debugging

Since MCP servers communicate via stdio, debugging can be challenging. We recommend using MCP Inspector, which is available as a package script:

npm run inspector

The Inspector will provide a URL to access browser debugging tools.