Home Assistant has integrated Matter natively since 2023 through its Matter Server add-on, letting Home Assistant users commission Matter devices directly and act as a controller on equal footing with Apple Home or Google Home.
True
The integration is built on top of python-matter-server, an open-source Matter Server packaged as a Home Assistant add-on. Commissioning is driven from the Home Assistant Companion mobile app, which scans the QR code and pushes credentials. Thread support is provided either by a Thread Border Router built into the Home Assistant device (the Home Assistant Yellow ships one, the SkyConnect dongle adds one) or by an external Border Router on the network. Home Assistant joins the device as one Fabric administrator among Apple, Google and Amazon, giving its users cross-vendor Matter access without locking them into a commercial cloud.
If you run Home Assistant in a VM or container, do not forget to grant the IPv6 multicast traffic Matter needs (UDP 5540 and link-local mDNS); without it commissioning succeeds but the device appears offline minutes later.
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