Which service API can be taken as a model when developing your own?

Question

Facebook

Interested in BEST Practices.
Thank you!

Answer 1

GitHub API .
And read this book .

Answer 2

Better than Facebook, believe me, of the tags you specified, there is the most complete and most adequate api, tested on a personal rake with mats from personal experience.
Contact does not allow many functions to be performed on various applications, and their security policies are strange, twitter is also quite limited, and facebook with their graphics API is quite a handy thing, although it would not hurt them to document it better