It would be nice if there was a parameter which returned the number of results from an API call. Intuiface composer knows the number of results, you just can’t bind to it.
That’s a good suggestion, I added a poll to your message to see who else would be interested in this feature.
Another good feature which kind of relates would be adding a trigger to the API Explorer Asset called something like “request returned no results”. This would give the ability to show some kind of “No results found” message in the experience.