API: What is the full list of user fields?

Where is the full list of things I can set on a user with the API?
I find the “…” incredibly helpful in:

“id”: 123,
“firstname”: “Bob”,
“lastname”: “Smith”,
“email”: "bob@smith.example.com",

“note”: “some note”,
“updated_at”: “2016-08-16T07:55:42.119Z”,
“created_at”: “2016-08-16T07:55:42.119Z”

Would also be nice to have the full list for the other endpoints as well…