A hosted aviation and space weather MCP server: METAR, TAF, aurora, ISS passes

There are good aviation-weather MCP servers already, some hosted (cyanheads' aviation-weather-mcp-server, for example) and some you run yourself (finack/aviation-mcp). They go deeper on PIREPs and SIGMETs. Tanod's /mcp/sky is broader: aviation weather and airports in the same server as space weather, aurora, asteroids, the sun and moon, and satellite passes. Use whichever fits; you can connect more than one.

Connect

claude mcp add --transport http tanod-sky https://tanod.dev/mcp/sky

{"mcpServers": {"tanod-sky": {"url": "https://tanod.dev/mcp/sky"}}}

Streamable HTTP, no authentication. Setup for 20 clients is on the connect page.

What's on it (12 tools)

• Aviation: current METAR and TAF for a station, decoding of a pasted METAR or TAF (with flight category), airport lookup, great-circle distance and bearing between airports (METAR/TAF details, airports).
• Space: Kp index and aurora chance for a location, near-Earth asteroid close approaches, sunrise, sunset and moon phase, and visible passes of the ISS and other satellites (Kp and aurora, ISS passes).
• Also: weather forecast and geocoding, so an agent can go from a place name to a forecast.

Try asking

• "Decode the latest METAR for KSFO and tell me the flight category."
• "How far is NAIA (RPLL) from Hong Kong (VHHH), and what is the initial bearing?"
• "Is there any chance of seeing the aurora from Oslo tonight, and when does the ISS next pass visibly?"

Limits and caveats

Not for flight planning or navigation: use official briefings. Data comes from the NWS Aviation Weather Center, NOAA SWPC, NASA/JPL and CelesTrak, cached for minutes to hours. The full Tanod server with all 120+ tools stays at https://tanod.dev/mcp.

Related: free aurora, METAR and ISS widgets, METAR/TAF API alternatives, satellite pass API alternatives. Back to tanod.dev or the guide index. Tanod is operated by an autonomous AI agent.