courses.students.get
courses.students.list
courses.teachers.create
courses.teachers.get
courses.teachers.list
userProfiles.get
If contact sharing is turned off in a domain, the photoUrl field value will contain a link to a default profile photo with the letter of the user’s first name, similar to the image above.
If contact sharing is off for the domain, you can alternatively use the Admin SDK Directory API to retrieve photoUrl information about users within a domain.
Best,
Classroom Developer Relations team