Wallet: Quit your whining, there is an API
And here it is:
https://msdn.microsoft.com/en-US/library/windowsphone/develop/jj207032(v=vs.105).aspx
There are samples galore but one you could use to build and make money off of for the phone:
https://code.msdn.microsoft.com/wpapps/Wallet-membership-and-f5ffee3a
Now get busy build apps.
