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 0x004BElectrical Alarm
0x00A1Electrical Distribution
0x00A2 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.