We recently added some documentation around integration : https://staging.aerogear.org/docs/unifiedpush/ups_userguide/index/#integration (still on the staging site but will be released soon) 

and also some scripts that shows how this integration can work : https://github.com/aerogear/aerogear-unifiedpush-server/tree/master/node.js

And that made me think of the following use case : 

A third party should be able to create in one call the Push App and its variants. That would not be too much work on the server side, so wdyt ?