Release policies

The two options for absolution API are:

Protecting advice on APIs from the accepted public. For example, Sony acclimated to accomplish its official PlayStation 2 API accessible alone to accountant PlayStation developers. This enabled Sony to ascendancy who wrote PlayStation 2 games. This gives companies superior ascendancy privileges and can accommodate them with abeyant licensing acquirement streams.

Making APIs advisedly available. For example, Microsoft makes the Microsoft Windows API public, and Apple releases its APIs Carbon and Cocoa, so that software can be accounting for their platforms.

A mix of the two behaviors can be acclimated as well.