Transportation — entry 032 of 69
Transport for Atlanta, US
MARTA's developer portal exposes real-time bus data as two open GTFS-Realtime protocol-buffer feeds (vehicle positions and trip updates) that require no registration, plus a separate keyed REST endpoint (GetRealtimeArrivals) returning JSON train-arrival predictions for the rail system. Static schedule data is published as a standard GTFS zip, refreshed each service change.
AuthenticationNone requiredCall it straight away — no key, no signup.
HTTPSSupportedTraffic is encrypted in transit.
CORSDisabledBrowser calls need a server-side proxy.
PricingFreeNo paid tier — free for the documented use case.
FormatsGTFS, GTFS-RT, JSONResponses can be requested as GTFS or GTFS-RT or JSON.
GreatAPIs Score
Score80
Authentication25/25No authentication required
Pricing20/20Free to use
Docs0/20No docs or spec available
Formats15/15Supports 3 response formats
Freshness20/20Verified within 6 months
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- No key needed — call it now.
Stored keyNo key stored
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