Install IoT services and project as in getting started guide Create a device curl --insecure -X POST -i -H 'Content-Type: application/json' -H "Authorization: Bearer $TOKEN" https://$REGISTRY_HOST/v1/devices/myapp.iot/device01 Create credentials curl --insecure -X PUT -i -H 'Content-Type: application/json' -H "Authorization: Bearer $TOKEN" --data-binary '[{"type":"hashed-password", "auth-id": "device01", "secrets": [\{"pwd-plain":"'hono-secret'"\}] }]' https://$REGISTRY_HOST/v1/credentials/myapp.iot/device01 Retrieve credentials curl --insecure -X GET -i -H 'Content-Type: application/json' -H "Authorization: Bearer $TOKEN" https://$REGISTRY_HOST/v1/credentials/myapp.iot/device01 Note that device registry returns plain password and device cannot authenticate