Dabbling in the API currently and here is my request object URL:- http://www.bungie.net/Platform/Destiny/1/Stats/GetMembershipIdByDisplayName/TheNewWarlock/ I have the right Headers in my request object and I am able to hit the /search endpoint and get the resukts back. However, the above end point gives me an error like this:- {"Response":"0","ErrorCode":217,"ThrottleSeconds":0,"ErrorStatus":"UserCannotResolveCentralAccount","Message":"We've encountered..." Edit:: For brevity sake (the conversation thread below with Bunk3r is very deep!), here is what finally worked for me:- Use /SearchDestinyPlayer/{membershipType}/{displayName}/ end-point to get the membershipID for the player being searched. Note: the displayName parameter is either a Gamertag or a PSN Id.