Transportation — entry 044 of 69
Transport for Hessen, Germany
RMV's HAFAS-based open-data API (hapi) serves timetables, departure/arrival boards, and journey planning for the Rhein-Main public transit network in Hessen, in either JSON or XML depending on the requested format. Access requires a free accessId issued after a short request form — anonymous calls are rejected outright ("Missing value for required param accessId") rather than merely rate-limited.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSDisabledBrowser calls need a server-side proxy.
PricingFreeNo paid tier — free for the documented use case.
FormatsXML, JSONResponses can be requested as XML or JSON.
GreatAPIs Score
Score84
Authentication15/25API key required
Pricing20/20Free to use
Docs14/20Documentation URL provided
Formats15/15Supports 2 response formats
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/transport-for-hessen-germany/"><img src="https://greatapis.com/badge/transport-for-hessen-germany.svg" alt="Scored 84 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.