Own algorithm for building routes based on Yandex maps. Is it possible to?

Question

Google Maps

Is it possible, taking Yandex or Google maps as a basis, to create an application that can build routes on these maps based on its own algorithm?
Do the APIs of these services allow you to do something like this?

Answer 1

No, they have a ready-made service, a road graph, traffic jams, etc., no one gives out.
Look towards OpenStreetMap.
Even 2GIS uses OSM for tests. Or here .