Use GET {{apiPath}}/environments/{{envID}}/fidoDevicesMetadata/{{fidoDeviceID}} to retrieve the metadata for a specific device in the Global Authenticators table.

The device ID can be taken from the mdsIdentifier field for the device in the list of devices returned when you retrieve all of the device metadata in the Global Authenticators table. The ID of each device is also displayed in the Global Authenticators table in the UI (in the column Metadata ID).

This example retrieves the data for a device compliant with the FIDO2 protocol, so the returned data will also include the aaguid field.