Product name
Nuki Smart Lock 3.0 Pro / 4.0 Pro, Keypad 2.0 & Local MQTT API
Summary
Publish failed authentication attempts (Wrong PIN / Wrong Fingerprint on Keypad) via the local MQTT API.
Features
Currently, the local MQTT API reliably publishes successful lock actions to the nuki/<DEVICE_ID>/lockActionEvent topic. However, failed authentication attempts—such as entering an incorrect PIN or placing an unrecognized finger on the Keypad 2.0—are completely ignored by the local MQTT broker, even though they are logged in the Nuki App via Bluetooth/Cloud.
The request is to broadcast these failed attempts over the local MQTT API. This could be implemented by either:
Adding a new, specific payload to the existing lockActionEvent topic (e.g., using a unique action or trigger ID for “failed keypad attempt”).
Creating a dedicated security/alert topic (e.g., nuki/<DEVICE_ID>/securityEvent).
Reason
A major selling point of the Nuki Pro series is the native, local MQTT integration, allowing users to build lightning-fast, 100% local Smart Homes without cloud dependencies. Currently, users who want to trigger security automations based on failed access attempts are forced to use “Nuki Web” (Cloud API) via polling. Polling the cloud introduces heavy latency, relies on internet connectivity, and contradicts the local-first approach of the MQTT feature. Security-related events require instant, local triggers.
Examples
Security Camera Integration: Instantly trigger a local security camera in the hallway to take a snapshot or start recording the exact moment an unauthorized person tries to guess the PIN or use an unregistered fingerprint.
Visual Warning Systems: Automatically flash the smart lights in the house red to alert residents that someone is currently tampering with the Keypad outside.
Custom Notifications: Send immediate push notifications through Home Assistant (with camera snapshots attached) rather than relying on standard app notifications.
Brute-Force Protection Automations: Allow local Smart Home hubs to count consecutive failed attempts via MQTT to trigger advanced security routines, such as turning on the outside lights or sounding an alarm siren