Transliteration of names from Latin to Cyrillic - online service with API?

Question

API

Task: to automatically transliterate names and surnames from Latin to Cyrillic.
Full name is not necessarily English / US, but is typed in Latin letters. Sometimes there are characters close to Latin, for example: Slivanský.
The accuracy of the transliteration is not important. Those. in the example above, Slivansky, and Slivansky, and Slivansky, and even Slivanský will be normal results. The main thing is to be similar to Russian.
Google translate is not suitable, because. the example above does not work.
translit.ru and other services found in the ru-segment do not have an online API.
Help find another service.

Answer 1

Why is there an API for this? Transliteration is done bluntly letter by letter. Take any transliteration function and turn it inside out.

Answer 2

"You need to use jQuery" (c)