> For the complete documentation index, see [llms.txt](/llms.txt).

# Supported chains

MetaMask Agent Wallet supports preconfigured EVM networks. The authoritative list for your CLI version is the output of `mm chains list`.

## List supported chains[​](#list-supported-chains "Direct link to List supported chains")

```
mm chains list

```

For machine-readable output:

```
mm chains list --json

```

The JSON output includes per-network fields such as `key`, `chainNamespace`, `caip2`, `chainId`, `name`, `selected`, `relaySupported`, and `features` (for example, `swap`, `predict`, `perps`). `relaySupported` indicates whether gasless relay is available on that network.

## Product coverage[​](#product-coverage "Direct link to Product coverage")

Pass any supported chain ID to `--chain-id` for signing, transfers, balances, and other wallet operations. Availability varies by CLI version. Always confirm with `mm chains list` before scripting against a specific network.

The tables below reflect the current preconfigured network list. The `mm chains list` output also includes a `features` field per chain (for example, `swap`, `predict`, `perps`). Use `mm chains list --json` to inspect feature availability programmatically.

### Mainnets[​](#mainnets "Direct link to Mainnets")

| Network         | Chain ID    | [Transaction Shield](https://support.metamask.io/manage-crypto/transactions/transaction-shield/) |
| --------------- | ----------- | ------------------------------------------------------------------------------------------------ |
| Ethereum        | 1           | Covered                                                                                          |
| BNB Smart Chain | 56          | Covered                                                                                          |
| Base            | 8453        | Covered                                                                                          |
| Arbitrum        | 42161       | Covered                                                                                          |
| Optimism        | 10          | Covered                                                                                          |
| Polygon         | 137         | Covered                                                                                          |
| Avalanche       | 43114       | Covered                                                                                          |
| Linea           | 59144       | Covered                                                                                          |
| Unichain        | 130         | No                                                                                               |
| ZKsync Era      | 324         | No                                                                                               |
| Scroll          | 534352      | No                                                                                               |
| Blast           | 81457       | No                                                                                               |
| Mantle          | 5000        | No                                                                                               |
| opBNB           | 204         | No                                                                                               |
| Celo            | 42220       | No                                                                                               |
| Monad           | 143         | Covered                                                                                          |
| Sei             | 1329        | Covered                                                                                          |
| HyperEVM        | 999         | Covered                                                                                          |
| MegaETH         | 4326        | Covered                                                                                          |
| Hemi            | 43111       | No                                                                                               |
| Robinhood Chain | 4663        | Covered                                                                                          |
| Palm            | 11297108109 | No                                                                                               |

Chains without Transaction Shield support

On chains marked **No**, threat scanning is unavailable, so Agent Wallet can't tell you whether a recipient or contract is malicious, and Transaction Protection coverage doesn't apply. In Guard Mode, transactions are still checked against your address allowlist, which blocks recipients you haven't approved. Treat that as a basic safeguard, not a replacement for threat scanning.

### Testnets[​](#testnets "Direct link to Testnets")

| Network                 | Chain ID  |
| ----------------------- | --------- |
| Ethereum Sepolia        | 11155111  |
| Ethereum Hoodi          | 560048    |
| Base Sepolia            | 84532     |
| Arbitrum Sepolia        | 421614    |
| Optimism Sepolia        | 11155420  |
| Polygon Amoy            | 80002     |
| Avalanche Fuji          | 43113     |
| BNB Smart Chain Testnet | 97        |
| Linea Sepolia           | 59141     |
| ZKsync Sepolia          | 300       |
| Scroll Sepolia          | 534351    |
| Blast Sepolia           | 168587773 |
| Mantle Sepolia          | 5003      |
| Unichain Sepolia        | 1301      |
| opBNB Testnet           | 5611      |
| Celo Sepolia            | 11142220  |
| Monad Testnet           | 10143     |
| Sei Testnet             | 1328      |
| HyperEVM Testnet        | 998       |
| MegaETH Testnet         | 6343      |
| Hemi Testnet            | 743111    |
| Robinhood Chain Testnet | 46630     |

For chains not in the preconfigured list, `mm wallet balance` falls back to direct RPC queries via Multicall3.

## Per-chain balances[​](#per-chain-balances "Direct link to 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.

## Related commands[​](#related-commands "Direct link to Related commands")

- [mm chains list](/agent-wallet/reference/commands/#mm-chains-list)
- [Send tokens](/agent-wallet/guides/send-tokens/)