Where to get the languages ​​of the world?

Question

Data request

On the international site there is an option in the personal account "specify the language".
Actually, for this option, you need to get a database of these languages ​​\u200b\u200bfrom somewhere (we have mongo).
Google gives out some kind of nonsense, not understanding the context of my requests
Maybe someone has dealt with a similar task?

Answer 1

https://www.google.com.ua/search?q=iso+language+list

Answer 2

What does db mean for languages?
Just json for languages?
Or something like api from www.geonames.org ?