Hi everyone, so as the thread title says, I want to make a system that checks if a user is premium or not. I was for some months searching with a friend, how could we to this. We've found many fake things that of course couldn't work. Until I found a thread that tell us to use this specific Mojang API: http://session.minecraft.net/game/joinserver.jsp?user=USERNAME&sessionId=SESSIONID&serverId=SERVERID The thing is that I don't know what's sessionID and serverId, and of course, how to get them. So please I need your help guys. Thanks in advance!