This will pull all EP Ops adapters that are in the NO_DATA_RECEIVING state. You can also do NONE as the resourceStatus. Also, add on &resourceState=STARTED to only show things that have been started, otherwise you will get some returns of adapters that are stopped as well, which may be extra unneeded data. The API docs are pretty good on this, https://vropsserver/suite-api/docs/rest/index.html, and look for getResources in the index on the left.