We're currently in the process of implementing a solution for comparing differences in SharePoint configuration across our DTAP environment. We want to compare configuration settings across sites, but also in service applications like User Profile Service (i.e. custom properties and their settings) and Search (i.e. managed property configurations).
Our environment is SharePoint 2013 on-premises but we prefer to make use of remote API's (REST / Managed CSOM) to read these kinds of configuration information.
So far I didn't discover any Remote API that could help us get the information we need. Can anyone here point me to such API's or confirm my guess such remote API's just don't exist and we would only be able to user Server-side API's?