I didn't find any reference to this on the XenForo manual, but perhaps there is another way of doing it and it just out there but I can't find it. I'm pretty familiar with php coding but you know how annoying is to research in code instead of documentation.
Thing is that I handle sales and downloads using this basic integration, I will like to know if you have something like this... If you don't I will know that I will need to code it myself.
PS. My site is Chevereto.com