Read and Write to Filemaker Data API

[PierreCF]

Is there a way to create an app, that can Read to the filemaker data api.
This is a normal CURL api and we are looking for CRUD perfomance,
Thanks for you input.
We could write the app for filemaker GO… but that restricts us to only iOS devices… with appsheets we could “easily” have global app that runs in all platforms.