Wiener Linien Open Data

Wiener Linien Open Data

Wiener Linien, Vienna's public transport operator, publishes a keyless real-time JSON API for departures, plus routing, stop/elevator geodata, operational statistics and a GPS-annotated stop list, as part of the City of Vienna's open-data initiative. The open-data page says (Signal Lab translation in brackets): "Ein API-Key ist nicht nötig." [An API key is not necessary.]

Coverage

Real-time departure data, routing, geodata for stops and elevators, operational statistics for tram, bus and U-Bahn service, and a modified stop list with GPS coordinates, per the open-data page's own list of available data (Signal Lab translation in brackets): "Echtzeit-Abfahrtsdaten Routing Geodaten von Haltestellen und Aufzügen Statistikdaten aus dem Betrieb von Straßenbahn, Bus und U-Bahn eine modifizierte Haltestellenliste mit GPS-Koordinaten" [Real-time departure data; routing; geodata of stops and elevators; statistical data from tram, bus and U-Bahn operations; a modified stop list with GPS coordinates]. A sample monitor query (stopId 147, Währinger Straße, Volksoper U) returned live real-time departures on 2026-11-11. History start and update frequency: Not stated for the real-time API; the page says data distributed via the city's Open Data Portal are updated every six hours.

Verdict

Real-time departures, routing, stop/elevator geodata and operational statistics for Vienna's U-Bahn, tram and bus network, from Wiener Linien, the City of Vienna's transport operator (confirmed via a same-day sample monitor query captured earlier today). Licensed Custom (Signal Lab translation in brackets): "Alle Daten der Wiener Linien werden unter der CCBY-Lizenz veröffentlicht. Damit gestatten die Wiener Linien Entwickler*innen, unter Angabe der Datenherkunft mit den Daten zu arbeiten und die eigenen Anwendungen auch kommerziell zu nutzen." [All Wiener Linien data are published under the CCBY licence. This allows developers to work with the data — citing the data's origin — and to use their own applications commercially as well.] Signal Lab records this as Custom rather than a specific CC BY version because the page names only "CCBY-Lizenz" without stating a version number. "Ein API-Key ist nicht nötig." [An API key is not necessary.] Rate limits: Not stated. Signal Lab links only.