Grenoble public transport
RMV API (Public Transport in Hessen)
Honolulu Transportation Information
Data about buses routes, parking and traffic
TfL API
Data about positions of Metro vehicles in real time and travel their routes
TfGM transport network data
Transport APIs and dataset for Norway
OC Transpo API
RATP Open Data API
SEPTA APIs
SPTrans
Public trains of Spain
Public Transport consumer
Official Swiss Public Transport Open Data
NS, only trains
TTC
Transport API and dataset for UK
NextBus API
TransLink
Washington Metro transport API