https://search.apps.ubuntu.com/api/v1/package/docker "content" in there

here's an oem one https://search.apps.ubuntu.com/api/v1/package/beagleblack

to filter pass X-Ubuntu-Framework: ubuntu-core-15.04-dev1

https://search.apps.ubuntu.com/api/v1/search?q=content:"framework"

X-Ubuntu-Release: [15.04-core|rolling-core|rolling-personal]