as you know Squared Up’s Web-API tile allows it to integrate information from any web-service that returns JSON data.
With Polaris, a free and open source framework it is possible to build web-services just in PowerShell.
This example explains the steps to create web-service in Polaris which returns locked out user information and how to integrate them nicely in Squared Up.
the account does not need to have special permissions. I only tried it with Local System, but perhaps also Network Service is possible. - Need to be tried