This is something I am looking for as well. In my case I'd like to integrate a REST API with a Push Notifications API in a unified API specification. Today I h

This is something I am looking for as well. In my case I'd like to integrate a REST API with a Push Notifications API in a unified API specification. Today I have resorted to using JSON schemas/hyperschemas with custom templating using the Heroku's prmd tool. Works ok but has the drawback that it relies on my custom made templates...