Dropbox API - retrieve permissions of an app

Thanks! That's correct, there isn't currently a way to programmatically list team-linked apps. (If you're using a Dropbox Business API with auditing access, you can look up 'app_link_team'/'app_unlink_team' events from /2/team_log/get_events[/continue], but that's not a great solution. It would be more work to implement and be less efficient.) I'll send this along as a request for a proper way to list team-linked apps and their permissions, but I can't promise if or when that might be implemented though. 

Also, it sounds like you're referring to the deprecated /2/team/linked_apps/list_team_linked_apps endpoint. That didn't actually let you list "team-linked" apps, but rather list the (user-linked) apps for members on the connected team. We replaced it because it was confusingly named.

And yes, there is a "Select" Access" permission, mentioned in this help center article. That's a different kind of app, but it will come up in the list_members_linked_apps/list_member_linked_apps lists, with "is_app_folder": false. (The API unfortunately does not offer enough granularity to distinguish between different kind of non-app folder apps.)