Get version of specific subplace of game through API

I want to make a tool to track the versions of specific subplaces within a game. I am currently able to get these subplaces and information about them, as well as the last time the universe was updated, but not the placeversion of the subplace (or an “updated” date). I believe there are ways to get this information, as plugins like RoSeal have place versions available, but I cannot find out how. Is this possible?