Is it possible to return a custom user field from a user with the API I can get the userID with the "...api/check-access/by-login-pass" but not the user field
with user id you can access all other user info with another call to api http://www.amember.com/docs/REST You need to use users controller for it. Here is example of url to call http://example.com/amember/api/users?_key=APIKEY&_filter[user_id]=5