The API documentation is available in the header files. If you were to parse those, I'm pretty sure you could generate the docs for the C API automatically, jus

The API documentation is available in the header files. If you were to parse those, I'm pretty sure you could generate the docs for the C API automatically, just as Apple does for Swift. You'd need to do a fair bit of search-and-replace to get the function and type names right, but the API surface is finite and it doesn't change that often. If you were willing to put a good amount of work into a generator, you could get it to a state where it would be able to fully parse all of the Apple SDKs. There's no magic in ARC, it's all just calls to retain and release that the compiler synthesizes for you automatically. If you have the headers, you can do what it does and figure out which methods return objects that need to be manually released. If you were generating bindings for a language with RAII, like Rust or C++, you could create a bunch of wrapper types and give them destructors, the best you can do for C is adding an extra paragraph in your docs.