Jeff, has deployd considered adopting a JSON-based media type like Collection+JSON or HAL or JSON-LD (and there are others, or you could roll your own) so that the JSON APIs are properly RESTful?
(I work at Deployd) Our goal is first and foremost to generate useful APIs that you can use in your front-end, not necessarily to strictly adhere to the REST pattern. We do tend to use REST terminology when describing Deployd, and maybe that's a mistake that's causing more distraction than necessary.