Aviation Weather MCP Server

A hosted MCP (Model Context Protocol) server that gives Claude direct access to real-time aviation weather data from aviationweather.gov — no web searching needed.

Features

• METARs — Current airport weather observations worldwide

• TAFs — Terminal aerodrome forecasts (24-30 hour forecasts)

• PIREPs — Pilot reports of in-flight conditions (turbulence, icing, etc.)

• SIGMETs/AIRMETs — Aviation weather warnings and advisories

• Station Info — Airport/station lookup with coordinates and elevation

Related MCP server: Claude-NWS Protocol Bridge

Data Source

All data comes from the Aviation Weather Center (AWC) API at aviationweather.gov. This is the official FAA/NWS source — free, no API key required.

How It Works

This server uses:

• FastMCP (Python) for MCP protocol handling

• Streamable HTTP transport for remote access

• Render for hosting (always-on web service)

Once deployed, add it as a custom connector in Claude Chat and Claude can directly query aviation weather data.

Setup

Deploy to Render

1. Push this repo to GitHub

2. Create a Web Service on render.com

3. Connect to this GitHub repo

4. Configure:

   • Runtime: Python 3

   • Build Command: pip install -r requirements.txt

   • Start Command: python server.py

5. Deploy

Add to Claude Chat

1. Go to Claude Chat Settings → Connectors

2. Click "Add custom connector"

3. Enter your Render URL + /mcp (e.g., https://your-app.onrender.com/mcp)

4. Name it "Aviation Weather" or similar

5. Start asking Claude about METARs, TAFs, and PIREPs!

Example Prompts

Once connected, try asking Claude:

• "What's the current METAR for KJFK?"

• "Get the TAF for Tucson International (KTUS)"

• "Are there any PIREPs for turbulence near Chicago?"

• "Show me current SIGMETs for convection"

• "What's the weather at KORD, KLAX, and KSFO?"

Tools Reference

Development

Run locally:

pip install -r requirements.txt
python server.py

Server starts on http://localhost:8000/mcp

License

MIT

Author

Built by a retired corporate pilot who wanted Claude to speak aviation weather natively. 🛩️