PASAR API

🇪🇸 EMT Madrid MobilityLabs ~ bus, bikes & mobility

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Madrid's public transport operator offers a documented REST API for bus arrivals, stops, lines, GTFS and BiciMAD; free login gives x-ClientId/passKey.

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# EMT Madrid MobilityLabs ~ bus, bikes & mobility needs an API key.
# No single public base URL ~ start from the docs:
# https://apidocs.emtmadrid.es/

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I'm integrating a Spain API into my app.

API: EMT Madrid MobilityLabs ~ bus, bikes & mobility
Provider: EMT Madrid
Auth: requires an API key (sign up: https://apidocs.emtmadrid.es/)
Pricing: free
Important note: Madrid's public transport operator offers a documented REST API for bus arrivals, stops, lines, GTFS and BiciMAD; free login gives x-ClientId/passKey.

Source: EMT Madrid (https://apidocs.emtmadrid.es/)
Source type: Official public feed
Endpoint type: Public feed, non-JSON
Integration difficulty: Needs API key
Last checked: 2026-07-05
Production caveat: Keep credentials server-side and confirm current limits, pricing, and webhook/error behaviour in the provider docs.

Help me set up the correct onboarding/authentication path and make the first valid request ~ explain exactly where credentials go and what must happen before production.

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