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

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

Tool	Description
get_metar	Current observations for airport(s)
get_taf	Terminal forecast for airport(s)
get_pireps	Pilot reports near a station or nationwide
get_airsigmet	Current SIGMETs and AIRMETs
get_station_info	Station details and coordinates

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. 🛩️