{"id":"1991378e-7b94-4cea-87ca-80f3d11a725a","shortId":"gzbV9b","kind":"mpp","title":"Find nearby airports by latitude/longitude via Amadeus reference data, $0.005/request over MPP.","tagline":"Find nearby airports by latitude/longitude via Amadeus reference data, $0.005/request over MPP.","description":"This endpoint is part of StableTravel's Reference Data category. It accepts latitude, longitude, and an optional radius parameter (default 500 km) via GET and returns a list of nearby airports from Amadeus's reference database. Results can be sorted by relevance, distance, or traveler/flight analytics scores, and paginated with page[limit] and page[offset] parameters.\n\nThe endpoint costs $0.0054 per request (as indicated by the OpenAPI spec's x-payment-info amount of 0.005400 USD). Payment is handled automatically via the MPP protocol using the Tempo method on chain 4217, settling in pathUSD. No API keys or authentication are required — the micropayment itself serves as auth. The endpoint returned a 402 MPP challenge on probe, confirming it is live.\n\nStableTravel is operated by Merit Systems and wraps Amadeus GDS and FlightAware AeroAPI data behind a pay-per-request facade. The full OpenAPI 3.1 spec is published at /openapi.json and interactive docs are available at /docs. This specific endpoint is useful as a building block for travel agents that need to resolve geographic coordinates to the nearest airports before searching flights or hotels.","tags":["amadeus","flightaware","flights","hotels","activities","transfers","travel"],"capabilities":["nearby-airport-lookup","geocode-to-iata","amadeus-reference-data","lat-lng-search","pagination","sort-by-distance","sort-by-relevance","mpp-micropayment","tempo-settlement","no-auth-required"],"categories":["geo","travel"],"synonyms":["nearest airport","airport finder","airport by coordinates","airport geocode lookup","closest airport API","lat long airport search","airport proximity search","IATA airport code by location"],"warnings":["Response schema data items are untyped (items: {}) — actual Amadeus response structure must be inferred from Amadeus documentation","Example response is synthetic based on typical Amadeus reference data shape, not captured from a live call"],"endpointUrl":"https://stabletravel.dev/api/reference/airports","protocol":"mpp","transport":"http","auth":{"type":"mpp","details":{"realm":"stabletravel.dev","intent":"charge","method":"tempo","service_methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]}}}},"qualityScore":"0.880","qualityRationale":"Full OpenAPI 3.1 schema with parameter definitions, clear pricing in x-payment-info, live 402 MPP challenge confirmed, comprehensive guidance docs. Docked slightly because the response schema for this specific endpoint uses untyped `items: {}` in the data array, and no real example response was 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