Hi guys, who can I ask about providing External IDs with response? Sometimes metadata is very bad for non english artists (f.e. transliterated to english or in wrong encoding) and it will be awesome to get this metadata from MusicBrainz for example (I checked and it has full awesome info in my case).

Hi Vitalii, this is the right place to make this type of requests.
But unfortunately, we do not have External IDs for MusicBrainz.