If you have a business account (ignore this if you do not), you can "impersonate" an admin of a child sub-organization, by supplying
X-Force-Org-Id: org_id_goes_hereHTTP header along with all API calls within the Profiles scope. This will allow you to view, create and modify Devices within the target sub-organization using the API token of the parent (main) Organization.
Additionally, to retrieve only User type devices, append
/usersto this API call, or
/routersto retrieve only Router type devices.
Try It!to start a request and see the response here!