|[AVV](https://avv.de) |HAFAS ReST API |usage agreement |[OPENDATA](https://avv.de/de/fahrplaene/opendata-service)
|[VRS](https://www.vrs.de/) |GTFS |usage agreement |[VRS Open Data /Open Service](https://www.vrs.de/fahren/fahrplanauskunft/opendata-/-openservice)
|[VRS](https://www.vrs.de/) |GTFS Realtime |usage agreement |[VRS Open Data /Open Service](https://www.vrs.de/fahren/fahrplanauskunft/opendata-/-openservice)
|[VRS](https://www.vrs.de/) |ASS |usage agreement |[VRS Open Data /Open Service](https://www.vrs.de/fahren/fahrplanauskunft/opendata-/-openservice)
|[VRS](https://www.vrs.de/) |TRIAS |usage agreement |[VRS Open Data /Open Service](https://www.vrs.de/fahren/fahrplanauskunft/opendata-/-openservice)