Building APIs

Some of our prospects are requesting that we integrate our offering into their systems directly.
To do that we will need to build backend APIs (as 1st step) and to quality control UX, may extend front end APIs as well (2nd Step).
Currently our product is on Glide. Does Glide provide any functionality via which we can easily create these APIs & extend to our prospects who prefer that we integrate into their systems?

Glide does not provide that option and I doubt they would anytime soon…or ever.
You will have to look into some third part options. Check out some of these recent threads.