Container registry https://docs.gitlab.com/ee/api/container_registry.html

Group membership https://docs.gitlab.com/ee/api/members.html#list-all-members-of-a-group-or-project

Specifics on gitlab users:

Should be the "As an administrator" variant so we can get emails and link to Port Users - https://docs.gitlab.com/ee/api/users.html#as-an-administrator

This would help building:

My Merge Requests

Change Lead Time (DORA) for teams/users/services https://docs.getport.io/guides/all/setup-dora-metrics#aggregation

Container registry API | GitLab

GitLab product documentation.

Group and project members API | GitLab

GitLab product documentation.

Users API | GitLab

GitLab product documentation.