Developer/API docs for vatsim


I’m trying to find info on APIs and other dev docs for Vatsim.

So far I’ve only found and sub items. This is fine for receiving streams of data, however I’m looking for docs that (via Oauth of course) allow other things. Like having an external app (outside Euroscope for example) to deal with departure list (flight plans). I want to extend the functionality, UI and workflow so I’d like to make my own windows app for this part of the ATC job.

Does vatsim has options to do that? If yes, where can I find dev docs? Like said, I’ve managed to find only really basic stuff (like controllers online, ratings, filed flightplans etc, mostly “read” data).

Many thanks