This seems similar to Google's Discovery Service (https://developers.google.com/discovery/ https://developers.google.com/discovery/) which describes all new Goo

This seems similar to Google's Discovery Service (https://developers.google.com/discovery/ https://developers.google.com/discovery/) which describes all new Google APIs in a JSON document. This powers the online APIs Explorer (https://developers.google.com/apis-explorer https://developers.google.com/apis-explorer) and code generators (e.g., https://code.google.com/p/google-api-go-client/source/browse/google-api-go-generator/gen.go https://code.google.com/p/google-api-go-client/source/browse...) APIs created using Cloud Endpoints on App Engine also generate a Discovery document for their APIs (https://developers.google.com/appengine/docs/java/endpoints/ https://developers.google.com/appengine/docs/java/endpoints/)