Matter
Smart Home & Mesh · 6 specs
Direct Answer
Matter is an open-source, royalty-free smart home application connectivity standard developed by the Connectivity Standards Alliance (CSA). Operating across standard IP transports (Thread, Wi-Fi, and Ethernet) with Bluetooth Low Energy for commissioning, Matter enables seamless local interoperability between Apple Home, Google Home, Amazon Alexa, and Samsung SmartThings.
Source: Connectivity Standards Alliance (CSA) Matter 1.0–1.3 Specifications · Last reviewed Aug 28, 2026
Specs
| Governing Body | Connectivity Standards Alliance (CSA, formerly Zigbee Alliance) |
| Supported Network Transports | Thread (low power), Wi-Fi (high bandwidth), Ethernet (wired 802.3) |
| Commissioning Protocol | Bluetooth Low Energy (BLE) or Wi-Fi Direct |
| Protocol Layer | Application Layer over standard IPv6 / UDP |
| Security Model | Public Key Infrastructure (PKI) with Device Attestation Certificates (DAC) |
| Key Multi-Admin Feature | Multi-Admin (Simultaneous control across Apple, Google, Amazon, Home Assistant) |
The Unified Smart Home Application Layer
For decades, smart home accessories required separate certifications for Apple HomeKit, Google Assistant, and Amazon Alexa. Matter unifies these ecosystem walls into a single application layer. Built on IPv6, Matter defines standardized data clusters for light bulbs, locks, thermostats, air quality sensors, robot vacuums, and EV chargers.
Multi-Admin and Pure Local Control
Matter mandates pure local IP control—devices communicate directly with local controllers without requiring proprietary cloud servers. Through its 'Multi-Admin' feature, a single Matter smart plug can be simultaneously commissioned and controlled natively by an Apple iPhone, a Google Nest hub, and a Home Assistant server without synchronization delays.