In computer software, an application binary interface (ABI) is an interface between two binary program modules. Often, one of these modules is a library or operating system facility, and the other is a program that is being run by a user.
In the context of Polywrap, an ABI refers to the interface a Wrap provides. It defines invokable methods and types found within the Wrap.
The Wrap Manifest file (
wrap.info) contains, among other things, the Wrap's ABI, which comes as a msgpack-encoded schema of the Wrap.