The People API provides browse, fuzzy search, and dynamic ranking capability of people who are most relevant to the user. The API returns unified person entities rather than disconnected contacts and endpoints.
I am wondering if I could use this service to fetch contacts from Global Address list on MAC?
The API service is platform agnostic. However, currently we only support searching against Global Address List, the API doesn't allow browsing against an entire GAL.
Let us know if you have further questions.
-People API team