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# MatterSupport

Coordinate and control compatible smart home accessories.

## Overview

Matter is a smart home connectivity standard that gives your app the ability to control devices from a wide variety of manufacturers and across platforms. Adopt this framework in your app to add compatible devices to your ecosystem, then use <doc://com.apple.documentation/documentation/Matter> to commission and control them.

> Important: Calls to this framework return errors to Mac apps built with Mac Catalyst.

## Topics

### Adding a device

[Adding Matter support to your ecosystem](/documentation/MatterSupport/Adding-Matter-support-to-your-ecosystem)

Allow people to add Matter accessories to your platform.

[`MatterAddDeviceRequest`](/documentation/MatterSupport/MatterAddDeviceRequest)

A request that adds and sets up a device into an ecosystem.

[`MatterAddDeviceExtensionRequestHandler`](/documentation/MatterSupport/MatterAddDeviceExtensionRequestHandler)

The object that handles configuration and commissioning of a device into an ecosystem.


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