Thank you for this task. The lack of metrics about the use of Wikimedia APIs is a general problem, are you aware of a generic task to solve it?

(I was looking for such task and I found this one, this is why I ask, sorry for the slightly off-topic.)

I'm not and my focus only goes so far as the search dashboards, I'm afraid. Those you can see at http://searchdata.wmflabs.org/api/ - if you have feature requests, create a phab ticket in the discovery team queue and Dan can prioritise it.