What are the maps with API and lots of geocoding requests?

Question

API

In general, subject. And it is desirable that the API has Russified documentation.

Answer 1

Yandex, 2gis, and OSM have documentation in Russian ( wiki.openstreetmap.org/wiki/RU:API_v0.6 )
In the latter case, it is not clear how relevant it is.
Everyone has some sort of limit. You can buy from Yandex api.yandex.ru/maps/features/?p=commercial costs ~300k

Answer 2

As far as I know, osm does not have a limit on the number of requests. The main thing is that the application be public. In any case, it is best to contact an osm representative.