Routes
https://digitransit.fi/en/developers/apis/1-routing-api/routes/
Stops
https://digitransit.fi/en/developers/apis/1-routing-api/stops/
Bicycling
https://digitransit.fi/en/developers/apis/1-routing-api/bicycling/
Real-time arrival prediction
https://digitransit.fi/en/developers/apis/1-routing-api/3-realtime-arrival-prediction/
Cancelled trip times
https://digitransit.fi/en/developers/apis/1-routing-api/cancelled-triptimes/
Disruption info
https://digitransit.fi/en/developers/apis/1-routing-api/disruption-info/
Examples
https://digitransit.fi/en/developers/apis/1-routing-api/x-advanced/