Contracts & Tokens

Key contract addresses and tokens on MegaETH and Ethereum Mainnet.

Core

Mainnet

Token	Address	Description
MEGA	0x28B7E77f82B25B95953825F1E3eA0E36c1c29861	MegaETH's native protocol token.
WETH	0x4200000000000000000000000000000000000006	Wrapped Ether — an ERC-20 version of ETH for use in dApps.
Multicall3	0xcA11bde05977b3631167028862bE2a173976CA11	Utility contract that batches multiple calls into one transaction.

Stablecoins

Mainnet

Token	Address	Description
CUSD	0xcCcc62962d17b8914c62D74FfB843d73B2a3cccC	Dollar-pegged stablecoin by Cap Finance.
STCUSD	0x88887bE419578051FF9F4eb6C858A951921D8888	Yield-bearing version of CUSD — grows in value as Cap's protocol earns returns.
USDM	0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7	MegaETH's native stablecoin, backed by U.S. Treasury-based reserves.
USDmY	0x2eA493384F42d7Ea78564F3EF4C86986eAB4a890	Yield-bearing version of USDM — holders earn returns from the underlying reserves.
USDe	0x5d3a1Ff2b6BAb83b63cd9AD0787074081a52ef34	Synthetic dollar by Ethena Labs, backed by crypto assets and hedged with futures.
sUSDe	0x211Cc4DD073734dA055fbF44a2b4667d5E5fE5d2	Staked USDe — grows in value over time as it earns Ethena protocol revenue.
USDT0	0xB8CE59FC3717ada4C02eaDF9682A9e934F625ebb	Cross-chain USDT by Tether and LayerZero, usable across 15+ blockchains. 6 decimals.

ETH Liquid Staking & Restaking

Mainnet

Token	Address	Description
ezETH	0x09601A65e7de7BC8A19813D263dD9E98bFdC3c57	Renzo restaked ETH — earns staking and restaking rewards simultaneously.
pufETH	0x37D6382B6889cCeF8d6871A8b60E667115eDDBcF	Puffer Finance liquid restaking token — earns staking and restaking rewards.
rsETH	0xc3eACf0612346366Db554C991D7858716db09f58	Kelp DAO restaked ETH — earns restaking rewards on top of regular staking yields.
wrsETH	0x4Fc44BE15e9B6E30C1E774E2C87A21D3E8b5403F	Wrapped rsETH — cross-chain version of rsETH by Kelp DAO.
wstETH	0x601aC63637933D88285A025C685AC4e9a92a98dA	Lido wrapped staked ETH — staking rewards accrue in the token's value.

BTC

Mainnet

Token	Address	Description
BTC.b	0xB0F70C0bD6FD87dbEb7C10dC692a2a6106817072	Bridged Bitcoin — real BTC bridged onto EVM chains. 8 decimals.
LBTC	0xecAc9C5F704e954931349Da37F60E39f515c11c1	Lombard staked BTC — earns native Bitcoin yield while usable in DeFi. 8 decimals.
WBTC	0x32090fB1399a31cC095e6341a6353b7c09ba84FB	Wrapped Bitcoin by BitGo — backed 1:1 by BTC held in custody. 8 decimals.

Other Tokens

Mainnet

Token	Address	Description
CROWN	0xf7d2F0d0b0517CBDbf87C86910ce10FaAab3589D	Crown Credits — a token native to MegaETH.
MegaSIR	0x9367A0c482703d8d9bda995B03f8E71056a72500	SIR Trading token — a leverage protocol with no liquidations or funding fees. 12 decimals.
WSOL	0x9a96E366F6b2ED5850A38B58D355a80aFD998411	Solana's native SOL token bridged via Wormhole. 9 decimals.

This list is sourced from the mega-tokenlist registry. If a token you are looking for is not listed, check the registry for the latest additions.

OP Stack Predeploys

These contracts are predeployed at fixed addresses on all OP Stack chains. The addresses are the same on both MegaETH Mainnet and Testnet.

Contract	Address	Description
L2CrossDomainMessenger	0x4200000000000000000000000000000000000007	Send and receive messages between L1 and L2.
L2StandardBridge	0x4200000000000000000000000000000000000010	Bridge ETH and ERC-20 tokens between L1 and L2.
GasPriceOracle	0x420000000000000000000000000000000000000F	L1 fee estimation for transactions.
SequencerFeeVault	0x4200000000000000000000000000000000000011	Holds fees collected by the sequencer.
OptimismMintableERC20Factory	0x4200000000000000000000000000000000000012	Create bridgeable ERC-20 tokens on L2.
L2ERC721Bridge	0x4200000000000000000000000000000000000014	Bridge ERC-721 (NFT) tokens between L1 and L2.
L1Block	0x4200000000000000000000000000000000000015	Access the latest known L1 block info from L2.
L2ToL1MessagePasser	0x4200000000000000000000000000000000000016	Send messages from L2 to L1 (used by withdrawals).
OptimismMintableERC721Factory	0x4200000000000000000000000000000000000017	Create bridgeable ERC-721 tokens on L2.
GovernanceToken	0x4200000000000000000000000000000000000042	OP governance token (EIP-2612 support).

WETH and Multicall3 are also OP Stack predeploys/preinstalls — they are listed under Core above. For full details, see the OP Stack predeploys documentation.

OP Stack Preinstalls

These contracts come preinstalled on OP Stack chains at their standard addresses. The addresses are the same on both MegaETH Mainnet and Testnet.

Contract	Address	Description
Safe	0x69f4D1788e39c87893C980c06EdF4b7f686e2938	Gnosis Safe multisig wallet.
SafeL2	0xfb1bffC9d739B8D520DaF37dF666da4C687191EA	Gnosis Safe optimized for L2.
MultiSend	0x998739BFdAAdde7C933B942a68053933098f9EDa	Batch multiple Safe transactions.
MultiSendCallOnly	0xA1dabEF33b3B82c7814B6D82A79e50F4AC44102B	Batch multiple read-only calls via Safe.
Safe Singleton Factory	0x914d7Fec6aaC8cd542e72Bca78B30650d45643d7	Deterministic deployment for Safe contracts.
create2Deployer	0x13b0D85CcB8bf860b6b79AF3029fCA081AE9beF2	Deploy contracts to deterministic addresses.
CreateX	0xba5Ed099633D3B313e4D5F7bdc1305d3c28ba5Ed	Advanced deterministic contract deployment.
Deterministic Deployment Proxy	0x4e59b44847b379578588920cA78FbF26c0B4956C	Arachnid's CREATE2 factory.
Permit2	0x000000000022D473030F116dDEE9F6B43aC78BA3	Uniswap's universal token approval contract.
ERC-4337 EntryPoint v0.6	0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789	Account abstraction entry point (v0.6).
ERC-4337 SenderCreator v0.6	0x7fc98430eAEdbb6070B35B39D798725049088348	Creates sender contracts for ERC-4337 v0.6.
ERC-4337 EntryPoint v0.7	0x0000000071727De22E5E9d8BAf0edAc6f37da032	Account abstraction entry point (v0.7).
ERC-4337 SenderCreator v0.7	0xEFC2c1444eBCC4Db75e7613d20C6a62fF67A167C	Creates sender contracts for ERC-4337 v0.7.

For full details, see the OP Stack preinstalls documentation.

L1 Contracts (Ethereum)

Mainnet

Name	Address	Notes
L1StandardBridgeProxy (Canonical Bridge)	0x0CA3A2FBC3D770b578223FBB6b062fa875a2eE75	Send ETH here to bridge from Ethereum to MegaETH
OptimismPortalProxy	0x7f82f57F0Dd546519324392e408b01fcC7D709e8	Entry point for deposits and withdrawals
DisputeGameFactoryProxy	0x8546840adf796875cd9aacc5b3b048f6b2c9d563	Creates dispute games for fault proofs
SystemConfigProxy	0x1ED92E1bc9A2735216540EDdD0191144681cb77E	On-chain system configuration
L1CrossDomainMessengerProxy	0x6C7198250087B29A8040eC63903Bc130f4831Cc9	Cross-domain message passing
L1ERC721BridgeProxy	0x3D8ee269F87A7f3F0590c5C0d825FFF06212A242	Bridge ERC-721 tokens between L1 and L2
OptimismMintableERC20FactoryProxy	0xF875030B9464001fC0f964E47546b0AFEEbD7C61	Create bridgeable ERC-20 tokens on L1
SuperchainConfigProxy	0x5d0ff601bc8580d8682c0462df55343cb0b99285	Superchain-wide configuration
ProtocolVersionsProxy	0x150355311f965af4937fcca526f9df0573fd5b85	Protocol version tracking
USDM	0xEc2AF1C8B110a61fD9C3Fa6a554a031Ca9943926

MegaETH's L1 contracts are from OP Stack's op-contracts/v3.0.0 release. See OP Stack docs for descriptions of these contracts.

Adding a Token to the Registry

To get your token listed, submit a pull request to the mega-tokenlist repository.

1

Create a token folder

Create data/YOUR_TOKEN/ in the repository.

2

Add token metadata

Create a data.json file with your token's name, symbol, decimals, and per-chain addresses.

{
  "name": "My Token",
  "symbol": "MTK",
  "decimals": 18,
  "tokens": {
    "megaeth": {
      "address": "0xYourTokenAddress",
      "isOrigin": true,
      "mechanism": "native"
    }
  }
}

If the token is bridged from Ethereum, include both chains:

{
  "name": "My Token",
  "symbol": "MTK",
  "decimals": 18,
  "tokens": {
    "ethereum": {
      "address": "0xEthereumAddress",
      "isOrigin": true,
      "mechanism": "lock",
      "bridge": "0xBridgeOrLockboxAddress"
    },
    "megaeth": {
      "address": "0xMegaETHAddress",
      "isOrigin": false,
      "mechanism": "mint",
      "bridge": "0xMintEndpointAddress"
    }
  }
}

3

Add a logo

Add a logo.svg or logo.png (256×256 recommended) to the same folder.

4

Submit a PR

Open a pull request. Once merged, the token will appear in the generated tokenlist.

EVM addresses must be checksummed (EIP-55). For the full data schema and bridge mechanism types (native, lock, mint, burn), see the mega-tokenlist README.