{"id":"09047bc1-f9c9-4fed-a61b-1cbbb3a428e6","shortId":"KwZ5vb","kind":"mpp","title":"Search airports and cities by keyword via Amadeus reference data — $0.005/request, no API key needed.","tagline":"Search airports and cities by keyword via Amadeus reference data — $0.005/request, no API key needed.","description":"This endpoint searches for airports and cities by keyword using Amadeus reference data, exposed through StableTravel's pay-per-request gateway. It accepts a required `keyword` (e.g. \"London\", \"JFK\") and a required `subType` filter (AIRPORT, CITY, or AIRPORT,CITY), returning matching location records with IATA codes, geo-coordinates, and metadata. Optional parameters include `countryCode` for filtering by ISO country, pagination via `page[limit]` and `page[offset]`, sorting by traveler score, and a FULL/LIGHT view toggle.\n\nThe endpoint is part of StableTravel's broader travel API suite that covers flights, hotels, activities, transfers, and real-time flight tracking via Amadeus and FlightAware. Payment is handled automatically via the MPP (Tempo) or x402 protocol — no API keys, OAuth tokens, or subscriptions required. The fixed price is $0.0054 per request (approximately half a cent), settled in pathUSD on Tempo (chain ID 4217).\n\nThis is a GET-only endpoint. The response contains a `data` array of location objects and a `meta` object. It is useful as a prerequisite step before flight search, hotel lookup, or any workflow that requires resolving a human-readable place name to an IATA code. The full OpenAPI 3.1 spec is available at `/openapi.json`.","tags":["amadeus","flightaware","flights","hotels","activities","transfers","travel"],"capabilities":["location-search","airport-lookup","city-lookup","iata-code-resolution","keyword-autocomplete","country-filter","pagination","amadeus-reference-data","pay-per-request","mpp-tempo","x402"],"categories":["geo","travel","search"],"synonyms":["airport search","city search","IATA code lookup","location autocomplete","airport finder","travel reference data","Amadeus locations","airport code resolver","city code lookup"],"warnings":["Response item schema in OpenAPI uses empty `items: {}` — actual response structure must be inferred from Amadeus documentation patterns.","The decoded MPP amount is 5400 in pathUSD (6 decimals) = $0.0054, which is slightly higher than the $0.005 listed in the guidance table."],"endpointUrl":"https://stabletravel.dev/api/reference/locations","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 detailed parameter definitions, clear pricing in x-payment-info, live 402 MPP challenge captured, and comprehensive guidance docs. Slightly below 0.9 because no example response is provided in the spec itself (response item schema uses empty `items: {}`) and no actual 200 response was captured in the 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