A simple Model Context Protocol (MCP) server that connects Claude Desktop to the Deutsche Wetterdienst (DWD) API for German weather data.

• Simple, lightweight Node.js implementation
• No dependencies beyond the MCP SDK
• Easy to set up and use
• Access to DWD weather station data and warnings

1. Make the setup script executable:

   chmod +x setup.sh

2. Run the setup script:

   ./setup.sh

3. Restart Claude Desktop

4. Start using the DWD data in your conversations with Claude!

Get current weather data for specific DWD weather stations.

Example usage in Claude:

Can you check the current weather for station 10865 (Berlin-Tegel)?

Get current nowcast weather warnings in Germany.

Example usage in Claude:

Are there any current weather warnings in Germany? Can you check using the DWD API?

The DWD API requires specific station IDs. You can find these at:

• Official DWD station list

Common station IDs:

• 10381: Berlin-Brandenburg
• 10865: Berlin-Tegel
• 10147: Hamburg
• 10637: Köln-Bonn
• 10870: Munich

If the setup script doesn't work for you, you can manually configure Claude Desktop:

1. Install dependencies:

   npm install

2. Create or edit ~/.config/claude/claude_desktop_config.json:

   {
     "mcpServers": {
       "dwd": {
         "command": "node",
         "args": [
           "/full/path/to/dwd-server.js"
         ]
       }
     }
   }

3. Restart Claude Desktop

• Make sure Node.js 18+ is installed
• Check if the MCP server is running properly: node dwd-server.js
• Verify the path in claude_desktop_config.json is correct
• Restart Claude Desktop after configuration changes