diff --git a/docs/docs/integrations/mqtt.md b/docs/docs/integrations/mqtt.md
index df54752cb..a0166e4b0 100644
--- a/docs/docs/integrations/mqtt.md
+++ b/docs/docs/integrations/mqtt.md
@@ -147,6 +147,10 @@ Message published for each changed review item. The first message is published w
 
 Same data available at `/api/stats` published at a configurable interval.
 
+### `frigate/camera_activity`
+
+Returns data about each camera, its current features, and if it is detecting motion, objects, etc. Can be triggered by publising to `frigate/onConnect`
+
 ### `frigate/notifications/set`
 
 Topic to turn notifications on and off. Expected values are `ON` and `OFF`.
diff --git a/frigate/comms/mqtt.py b/frigate/comms/mqtt.py
index ff1223d48..eaaadfe9f 100644
--- a/frigate/comms/mqtt.py
+++ b/frigate/comms/mqtt.py
@@ -222,6 +222,10 @@ class MqttClient(Communicator):  # type: ignore[misc]
                 self.on_mqtt_command,
             )
 
+        self.client.message_callback_add(
+            f"{self.mqtt_config.topic_prefix}/onConnect", self.on_mqtt_command
+        )
+
         self.client.message_callback_add(
             f"{self.mqtt_config.topic_prefix}/restart", self.on_mqtt_command
         )