Smart Home add-on APIs

You can use Smart Home APIs version 3 to build Alexa add-ons. These Alexa interfaces use the pre-built voice interaction model. For more details about smart home add-ons, see Connect Your Device Cloud with Smart Home Add-ons. For details about ACK-based devices, see What Is the Alexa Connect Kit?

For Alexa interfaces for video skills, see Video APIs.

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Implement smart home interfaces in your Alexa add-on to enable device control for users. For a list of Smart Home APIs for difference add-on types, see Smart Home Add-on Types. For ideas about how to combine Alexa interfaces in different products, see Get Started with Device Templates. For the definitions of the message properties, see Alexa Interface Message and Property Reference.

Alexa.AutomationManagement – For devices that support automation, such as thermostats.
Alexa.BrightnessController – Users can control the brightness of devices, such as light bulbs.
Alexa.CameraStreamController – Users can view the feed from their security cameras that use the Real Time Streaming Protocol (RTSP).
Amazon recommends the Alexa.RTCSessionController as the preferred interface for this purpose.
Alexa.ChannelController – Users can change or increment the channel for an entertainment device.
Alexa.ColorController – Users can change the color of devices, such as color-changing light bulbs.
Alexa.ColorTemperatureController – Users can control the color temperature of devices that support tunable white light, such as light bulbs.
Alexa.Commissionable – Report a Matter commissionable device so that your device can be connected locally with Alexa.
Alexa.ContactSensor – For devices that detect contact between two surfaces.
Alexa.Cooking – Interfaces for cooking appliances.
Alexa.DataController – Users can view and delete data on Alexa, on the device, and in the device cloud.
Alexa.DeviceUsage – Interfaces for devices that can estimate and measure energy use.
Alexa.DoorbellEventSource – For devices that can raise doorbell events.
Alexa.EqualizerController – Users can set and adjust the equalizer bands and sound modes of a smart entertainment device.
Alexa.HumiditySensor – You can report the humidity for devices that sense the current humidity, such as thermostats.
Alexa.InputController – Users can change the input of an entertainment device.
Alexa.InventoryLevelSensor – You can report the amount of a consumable remaining in your device.
Alexa.InventoryLevelUsageSensor – You can report the approximate usage of a consumable installed in your device.
Alexa.InventoryUsageSensor – You can report the amount of a consumable that your device has used.
Alexa.LockController – Users can lock and unlock their lockable devices.
Alexa.ModeController – Model properties of a device that the user can set to one of a list of values.
Alexa.MotionSensor – For devices that can sense physical movement in an area.
Alexa.PercentageController – Users can control properties of devices that can be expressed as a percentage.
Alexa.PowerController – Users can turn their smart home devices on and off.
Alexa.PowerLevelController – Users can control the power level of their smart home devices.
Alexa.ProactiveNotificationSource – Notify a customer when their device needs attention.
Alexa.RangeController – Model properties of a device that the user can set to one of a range of values.
Alexa.RTCSessionController – Users can communicate remotely with devices that support Real-Time Communication and the WebRTC protocol. Alexa.RTCSessionController is the preferred interface for security camera devices and required to receive Works with Alexa (WWA) certification.
Alexa.SceneController – Users can activate or deactivate multiple smart home devices that are grouped together into a scene.
Alexa.SecurityPanelController – Interfaces for security systems and devices that can report alarm conditions to your users.
Alexa.SimpleEventSource – Model stateless events on a device, such as button press on a remote switch or smart button device. Users can connect the events to Alexa Routines.
Alexa.SmartVision.ObjectDetectionSensor – Users can receive notifications when their smart-vision device detects an object.
Alexa.SmartVision.SnapshotProvider – Users can request Alexa to send a snapshot image from their camera device.
Alexa.Speaker – Users can control the volume of their entertainment devices that contain audio speakers.
Alexa.StepSpeaker – Users can control the volume of their entertainment devices that contain audio speakers.
Alexa.TemperatureSensor – You can report the temperature for devices that sense the current temperature, such as thermostats.
Alexa.ThermostatController – Interfaces for smart thermostats.
Alexa.TimeHoldController – Users can pause a variety of devices.
Alexa.ToggleController – Model properties of a device that the user can set to on or off.
Alexa.WakeOnLANController – For smart home device endpoints that support the Wake-on-LAN or Wake on Wireless LAN standard for powering on.

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Last updated: May 20, 2026

Smart Home add-on APIs

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