List the people in a workspace: members (with role, status, brand access and API access) and pending invites, plus seats in use. API access says whether a teammate can use this workspace's API plan from their own keys and AI apps; owners and admins also see each member's key count, connected AI apps and last use. Works with an API key that has the Manage team permission (any workspace member can list; brand-limited teammates only see brand ids they can access), or from ChatGPT, Claude and other OAuth connections when the user is an owner or admin of the workspace.