How can i get all of the player's created gamepasses

I have absolutely no knowledge about api keys or roproxy, i can barely defend myself when it comes to one of these situations.

i need to get all players gamepasses to then display them in a gui (kinda like pls donate) but i just cant get it to work. i get either error 404, error 405, and many others.
I’ve already have tried looking for tutorials, forum posts, but nothing seems to work, and there is barely any information on this exact thing.

Have you enabled HTTP and API services for studio and your game?