Dear reviewers from Techcrunch, thanks for reading this piece of poetry. For perfomance and demo reasons we're using cached version of the apis from zalando and foursquare. We're actually written the code to access them but we've dumped them to json files for performance.
The Zalando API documentation is at: http://disrupt-hackathon.zalando.net/manual/hackathon-api-book-1.0.html