Digitransit Platform is an open source journey planning solution that combines several open source components into a modern, highly available route planning service. https://digitransit.fi/en/developers

Digitransit Platform is an open source journey planning solution that combines several open source components into a modern, highly available route planning service. Route planning algorithms and APIs are provided by the Open Trip Planner (OTP). OTP is a great solution for general route planning but in order to provide top-notch journey planning other components such as Mobile friendly user interface, Map tile serving, Geocoding, and various data conversion tools are needed. The digital transit platform provides these tools. https://digitransit.fi/en/developers/