Interesting developments.

Question: why do you have to log in using SteemConnect to see your UA score? I can't see a reason why you would need any authorization to do a look up in your database.

Edit: reading your API documentation you require a memo key encrypted message with plaintext of the senders username only (i.e. not a useful message), so I have to conclude you are using SC to do this. The purpose then is obviously proof of requester but why do you need this? Internal statistics? API rate limiting to Steem account holders only, and possibly per account if you choose (though you don't say it anywhere I can see)?