psn gamecards

Hi

Anyone know how tripletags are getting the information from the PSN i have been looking around on the net and can't seem to find out how its done. is it an api does anyone know. is there a website with details ???

any help would be gratefully received.

I believe it's API I am trying also to find out how

Personally because I think it looks like a 5 year old designed the PSN cards