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io.github.cyanheads/ourairports-mcp-server
Offline global aviation reference — airports, runways, navaids, frequencies from OurAirports.
Find airports within a radius of a latitude/longitude, ranked nearest-first by great-circle distance, each with its distance (km) and bearing (degrees true) from the query point. The grounding tool for "nearest airport to here" — pair it with a live aviation server to fetch weather or positions for the result. Takes a coordinate only: no geocoding, so resolve place names to lat/lon upstream first (e.g. an OpenStreetMap or Open-Meteo geocode tool). Closed airports are excluded unless include_closed is set. OurAirports is community-edited — not authoritative for flight operations.
Find navigation aids (VOR, VOR-DME, DME, NDB, NDB-DME, TACAN, VORTAC) two ways: spatially, by passing latitude+longitude (with an optional radius_km); or relationally, by passing airport_code to get the navaids that serve that airport. Supply exactly one mode — both or neither is a validation error. Coordinate mode ranks nearest-first with distance (km) and bearing (degrees true). Frequencies are stored in kHz for every navaid type (a VOR on 114.5 MHz reads frequencyKhz 114500) and are also surfaced in MHz. Airport mode returns an empty list (not an error) when the airport exists but has no associated navaids; an unknown airport_code is an error. OurAirports is community-edited — not authoritative for flight operations.
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Fetch the full record for one airport resolved by ANY code — IATA (SEA), ICAO (KSEA), GPS, national/local, or the OurAirports ident — with its runways and radio frequencies inline. The single `code` param is resolved case-insensitively across all five identifier spaces (priority: ident, then ICAO, IATA, GPS, local). The response always echoes the airport's complete code set and a resolution_note naming which space matched, so a wrong resolution from an ambiguous national code is self-correcting (re-query with the IATA or ICAO code, or the ident). Absent codes are reported as null, never an error. Closed airports always resolve. OurAirports is community-edited — not authoritative for flight operations.