How to add metadata for Matter Bridge support

Add-ons Bindings
1

Hello, I would like to use my OpenHAB as a Matterbridge to integrate my Velux or Homematic devices into Google Home, for example.

For testing purposes, I first ran the Matter client in OpenHAB and successfully integrated the IKEA DIRIGEA Bridge there.

However, I’m a bit confused about configuring OpenHAB as a Matterbridge.

If I understand correctly, the option is only enabled when at least one device has received the “matter” metadata.
Screenshot 2025-04-22 20.30.07

But how and where exactly do I specify this? Does anyone have instructions or an example?
Is it here “Items”? What next?

image

I actually thought that the Matter devices I received via the IKEA gateway already had the tag, so I could share them. I know I can also integrate them into Google Home in parallel via code generation. That’s not what I mean…

“The openHAB matterbridge uses metadata tags with the key “matter””

Link to the Guide

2

Yes, custom namespace with ‘matter’. Then fill in the value. Below is for a light.

The possible values are documented here.

value: OnOffLight
config: {}
1 Like
3

that works. Thanks

4

FYI - I think the plan is to get Matter added to the Well-known namespaces list, just isn’t done quite yet.