For me, I have a service that has multiple vectors of what would be called an API - PowerShell Modules, WMI, RESTFUL Web Services, some are available, some can do some things, some are more direct, some are not allowed with enterprise security etc.

Either way, I don't do what you suggest. I have self-learning rules and have the models build a well-rounded API engine once, then re-use it with query scripts through skills. Its portable and flexible in many environments.