Working with zones on Yandex.map (or another) without javascript?

Question

API

There are various delivery zones (in Yandex.maps, fortunately, there is a convenient tool for marking them). There is a task of getting the corresponding address of the delivery zone on the backend.
Getting the coordinates at the address, as you know, is not a problem, but determining the entry into one of the zones turned out to be not such an easy task. The API found in Yandex is designed only for the client side, you can, of course, reinvent your own bicycles. But maybe someone has already solved similar problems?

Answer 1

The found API at Yandex is designed only for the client part

Look towards "Yandex.Geocoder", everything can be determined from the backend there.