Starting from 3.4.2023, use of Digitransit APIs will require registration. The registration is now open. More information

Realtime APIs

GTFS-RT APIs (service alerts and trip updates) hosted at have been deprecated. For HSL region, realtime data in GTFS-RT format is available from HSL GTFS-RT API. Realtime data is also available from the routing API.

Realtime APIs provide disruption information and predictions for stop arrival and departure times in GTFS RT format and vehicle positions in a custom JSON format. When using realtime APIs, keep in mind that the availability and quality of the data varies in each city.

At first you should read the real-time API getting started guide to better understand limitations and possibilities.

Note: service alerts and trip updates are incorporated to the routing API. If you are using routing API, there is no need to use GTFS-RT APIs for service alerts and trip updates.


API  Description
Service alerts  Provides disruption information from HSL area in GTFS-RT format
Trip updates Provides predictions in GTFS-RT format to arrival and departures times for stops along the route of a trip.
High frequency positioning Provides positions and events from vehicles in HSL area in JSON format over MQTT