Why, what’s happened? What state is it in?
You could probably script something to check the state of things though. If you have a central point or device you trust, check /rest/system/connections to verify the other devices are connected and /rest/db/completion?device=ABCDE…&folder=default to see the completion status for a connected device.
The actual usage reporting data, if you want that, is in /rest/svc/report.