We've added new API endpoints for managing team members through the API. You can now list, add, view, and remove team members without using the dashboard.
/v1/organizations/{organization}/teams/{team}/members— List all members in a team (GET)/v1/organizations/{organization}/teams/{team}/members— Add a member to a team (POST)/v1/organizations/{organization}/teams/{team}/members/{id}— Get details about a specific team member (GET)/v1/organizations/{organization}/teams/{team}/members/{id}— Remove a member from a team (DELETE)
To use these endpoints with a service token, you'll need the read_organization permission for read operations and write_teams for adding or removing members.