Supported chains
MetaMask Agent Wallet supports all EVM chains.
The authoritative list of preconfigured networks is the output of mm chains list.
List supported chains
mm chains list
For machine-readable output:
mm chains list --json
Product coverage
Agent Wallet supports all EVM-compatible chains.
Pass any EIP-155 chain ID to --chain-id for signing, transfers, balances, and other wallet
operations.
The tables below list every network from mm chains list.
Availability varies by CLI version.
Always confirm with mm chains list before scripting against a specific network.
| Network | Mainnet chain ID | Testnet | Testnet chain ID |
|---|---|---|---|
| Arbitrum One | 42161 | Arbitrum Sepolia | 421614 |
| Avalanche | 43114 | Avalanche Fuji | 43113 |
| Base | 8453 | Base Sepolia | 84532 |
| BSC | 56 | BSC Testnet | 97 |
| Ethereum | 1 | Sepolia | 11155111 |
| Linea | 59144 | Linea Sepolia | 59141 |
| Optimism | 10 | Optimism Sepolia | 11155420 |
| Polygon | 137 | Polygon Amoy | 80002 |
| Celo | 42220 |
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.