Supported chains
MetaMask Agent Wallet supports multiple EVM chains. The authoritative list is the output of
mm chains list.
List supported chains
mm chains list
For machine-readable output:
mm chains list --json
Product coverage
The CLI commonly includes Ethereum, Linea, Arbitrum, Avalanche, Optimism, Base, and Polygon.
Availability varies by CLI version. Always confirm with mm chains list before scripting against a
specific network.
| Network | Typical chain ID |
|---|---|
| Ethereum | 1 |
| Linea | 59144 |
| Arbitrum | 42161 |
| Avalanche | 43114 |
| Optimism | 10 |
| Base | 8453 |
| Polygon | 137 |
Per-chain balances
Wallet balances and transfers are scoped to the chain you specify with --chain-id.
Fund each chain separately, or bridge with mm swap execute before transferring.