Matter — the smart-home spec
Matter is an open, royalty-free smart-home protocol from the Connectivity Standards Alliance. This page indexes everything we know about the spec from connectedhomeip: clusters and their revisions, device types, and which clusters ship in each Matter release.
Releases
One card per Matter release we have a frozen snapshot of. Click a sample cluster to inspect it at that version, or jump to the cluster's own history page.
0x0046Laundry Washer Mode
0x0051Refrigerator And Temperature Controlled Cabinet Mode
0x0052 Concepts
The pieces of a Matter device. Click through for the corresponding index page.
Cluster
A self-contained capability — On/Off, Temperature Measurement, Door Lock. Devices expose one or more clusters on each endpoint.
Browse clusters →Device Type
A named combination of mandatory and optional clusters that defines what a device can do — e.g. "On/Off Light", "Door Lock", "Thermostat".
Browse device types →Endpoint
A logical sub-unit of a device. A power strip might expose one endpoint per outlet, each acting as its own On/Off device type.
Binding
A direct device-to-device link, so a switch can control a light without round-tripping through a hub.
Binding stats →Explore
Every page on the site that maps to Matter spec data.