Is there an approach to programming called Api First?

Question

API

Is there already an approach to programming where the whole architecture is built around a pre-compiled API?

Answer 1

Here you don’t even need to invent anything, because half of the applications are created.

Answer 2

This is possible when it comes to services. You write a spec for swagger, use their tool to generate a service blank, finish the implementation manually (I don’t remember if the generator fills the handlers with code or leaves them empty). True, this only works when creating a service from scratch, you still have to maintain the existing code with your hands :)
For applications, the data you work with is most likely primary than the methods of using them. Therefore, for applications, it is better not to use such an approach to development, as it seems to me.