API endpoint for checking an entity is a PSC of another entity


I am currently working an application which utilises the API. I scoured the docs and I cannot see how can I find out if an entity, being an individual or a company, is a Person of Significant Control in another company. Most of the time time the PSCs are appointed by the company but sometimes this is not the case, especially when a company is a PSC in another company. Is there a way of fidning this out?

I know there I can find said information in the bulk data download for PSCs but are there any plans for querying said data through an API?