Platform to test Passbook.
AFNetworking - https://github.com/AFNetworking/AFNetworking
Cocoapods - http://cocoapods.org
Tested on iOS 7, might work on iOS 6
Follow the instructions to install Cocoapods and AFNetworking on their pages. Please please do not bother me about this.
Open the workspace, then build and run on your development device.
The core for generating passes is avaliable at: https://github.com/128keaton/PassServe