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# addAndSetupAccessories(with:completionHandler:)

Finds and adds nearby accessories to the home using a HomeKit code provided by your app.

```
func addAndSetupAccessories(with payload: HMAccessorySetupPayload, completionHandler completion: @escaping @Sendable ([HMAccessory]?, (any Error)?) -> Void)
```

## Discussion

Use this method to add accessories that have already been deployed (for example, accessories that have HomeKit support added as a firmware update), or accessories for which scanning a QR code would be difficult. Your app provides the accessory’s HomeKit code using a setup payload. For details on the payload’s content, please join the [MFi Program](https://developer.apple.com/programs/mfi/).

During this process, the user assigns the accessory to a room and configures its services.

## Topics

### Defining the Setup Payload

[`HMAccessorySetupPayload`](/documentation/HomeKit/HMAccessorySetupPayload)

A payload for authenticating a HomeKit accessory.


---

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