# Contracts & Tokens ## Core {% tabs %} {% tab title="Mainnet" %} | Token | Address | Description | | ------------------------------------ | --------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------ | | [MEGA](https://megaeth.com) | [`0x28B7E77f82B25B95953825F1E3eA0E36c1c29861`](https://megaeth.blockscout.com/address/0x28B7E77f82B25B95953825F1E3eA0E36c1c29861) | MegaETH's native protocol token. | | WETH | [`0x4200000000000000000000000000000000000006`](https://megaeth.blockscout.com/address/0x4200000000000000000000000000000000000006) | Wrapped Ether — an ERC-20 version of ETH for use in dApps. | | [Multicall3](https://multicall3.com) | [`0xcA11bde05977b3631167028862bE2a173976CA11`](https://megaeth.blockscout.com/address/0xcA11bde05977b3631167028862bE2a173976CA11) | Utility contract that batches multiple calls into one transaction. | | {% endtab %} | | | | {% endtabs %} | | | ## Stablecoins {% tabs %} {% tab title="Mainnet" %} | Token | Address | Description | | ----------------------------- | --------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------ | | [CUSD](https://www.cap.app) | [`0xcCcc62962d17b8914c62D74FfB843d73B2a3cccC`](https://megaeth.blockscout.com/address/0xcCcc62962d17b8914c62D74FfB843d73B2a3cccC) | Dollar-pegged stablecoin by Cap Finance. | | [STCUSD](https://www.cap.app) | [`0x88887bE419578051FF9F4eb6C858A951921D8888`](https://megaeth.blockscout.com/address/0x88887bE419578051FF9F4eb6C858A951921D8888) | Yield-bearing version of CUSD — grows in value as Cap's protocol earns returns. | | [USDM](https://megaeth.com) | [`0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7`](https://megaeth.blockscout.com/address/0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7) | MegaETH's native stablecoin, backed by U.S. Treasury-based reserves. | | [USDmY](https://megaeth.com) | [`0x2eA493384F42d7Ea78564F3EF4C86986eAB4a890`](https://megaeth.blockscout.com/address/0x2eA493384F42d7Ea78564F3EF4C86986eAB4a890) | Yield-bearing version of USDM — holders earn returns from the underlying reserves. | | [USDe](https://ethena.fi) | [`0x5d3a1Ff2b6BAb83b63cd9AD0787074081a52ef34`](https://megaeth.blockscout.com/address/0x5d3a1Ff2b6BAb83b63cd9AD0787074081a52ef34) | Synthetic dollar by Ethena Labs, backed by crypto assets and hedged with futures. | | [sUSDe](https://ethena.fi) | [`0x211Cc4DD073734dA055fbF44a2b4667d5E5fE5d2`](https://megaeth.blockscout.com/address/0x211Cc4DD073734dA055fbF44a2b4667d5E5fE5d2) | Staked USDe — grows in value over time as it earns Ethena protocol revenue. | | [USDT0](https://usdt0.to) | [`0xB8CE59FC3717ada4C02eaDF9682A9e934F625ebb`](https://megaeth.blockscout.com/address/0xB8CE59FC3717ada4C02eaDF9682A9e934F625ebb) | Cross-chain USDT by Tether and LayerZero, usable across 15+ blockchains. 6 decimals. | | {% endtab %} | | | | {% endtabs %} | | | ## ETH Liquid Staking & Restaking {% tabs %} {% tab title="Mainnet" %} | Token | Address | Description | | -------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------- | | [ezETH](https://www.renzoprotocol.com) | [`0x09601A65e7de7BC8A19813D263dD9E98bFdC3c57`](https://megaeth.blockscout.com/address/0x09601A65e7de7BC8A19813D263dD9E98bFdC3c57) | Renzo restaked ETH — earns staking and restaking rewards simultaneously. | | [pufETH](https://www.puffer.fi) | [`0x37D6382B6889cCeF8d6871A8b60E667115eDDBcF`](https://megaeth.blockscout.com/address/0x37D6382B6889cCeF8d6871A8b60E667115eDDBcF) | Puffer Finance liquid restaking token — earns staking and restaking rewards. | | [rsETH](https://kelpdao.xyz) | [`0xc3eACf0612346366Db554C991D7858716db09f58`](https://megaeth.blockscout.com/address/0xc3eACf0612346366Db554C991D7858716db09f58) | Kelp DAO restaked ETH — earns restaking rewards on top of regular staking yields. | | [wrsETH](https://kelpdao.xyz) | [`0x4Fc44BE15e9B6E30C1E774E2C87A21D3E8b5403F`](https://megaeth.blockscout.com/address/0x4Fc44BE15e9B6E30C1E774E2C87A21D3E8b5403F) | Wrapped rsETH — cross-chain version of rsETH by Kelp DAO. | | [wstETH](https://lido.fi) | [`0x601aC63637933D88285A025C685AC4e9a92a98dA`](https://megaeth.blockscout.com/address/0x601aC63637933D88285A025C685AC4e9a92a98dA) | Lido wrapped staked ETH — staking rewards accrue in the token's value. | | {% endtab %} | | | | {% endtabs %} | | | ## BTC {% tabs %} {% tab title="Mainnet" %} | Token | Address | Description | | ----------------------------------- | --------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------- | | BTC.b | [`0xB0F70C0bD6FD87dbEb7C10dC692a2a6106817072`](https://megaeth.blockscout.com/address/0xB0F70C0bD6FD87dbEb7C10dC692a2a6106817072) | Bridged Bitcoin — real BTC bridged onto EVM chains. 8 decimals. | | [LBTC](https://www.lombard.finance) | [`0xecAc9C5F704e954931349Da37F60E39f515c11c1`](https://megaeth.blockscout.com/address/0xecAc9C5F704e954931349Da37F60E39f515c11c1) | Lombard staked BTC — earns native Bitcoin yield while usable in DeFi. 8 decimals. | | [WBTC](https://wbtc.network) | [`0x32090fB1399a31cC095e6341a6353b7c09ba84FB`](https://megaeth.blockscout.com/address/0x32090fB1399a31cC095e6341a6353b7c09ba84FB) | Wrapped Bitcoin by BitGo — backed 1:1 by BTC held in custody. 8 decimals. | | {% endtab %} | | | | {% endtabs %} | | | ## Other Tokens {% tabs %} {% tab title="Mainnet" %} | Token | Address | Description | | ---------------------------------- | --------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------ | | CROWN | [`0xf7d2F0d0b0517CBDbf87C86910ce10FaAab3589D`](https://megaeth.blockscout.com/address/0xf7d2F0d0b0517CBDbf87C86910ce10FaAab3589D) | Crown Credits — a token native to MegaETH. | | [MegaSIR](https://www.sir.trading) | [`0x9367A0c482703d8d9bda995B03f8E71056a72500`](https://megaeth.blockscout.com/address/0x9367A0c482703d8d9bda995B03f8E71056a72500) | SIR Trading token — a leverage protocol with no liquidations or funding fees. 12 decimals. | | [WSOL](https://wormhole.com) | [`0x9a96E366F6b2ED5850A38B58D355a80aFD998411`](https://megaeth.blockscout.com/address/0x9a96E366F6b2ED5850A38B58D355a80aFD998411) | Solana's native SOL token bridged via Wormhole. 9 decimals. | {% hint style="info" %} This list is sourced from the [mega-tokenlist](https://github.com/megaeth-labs/mega-tokenlist) registry. If a token you are looking for is not listed, check the registry for the latest additions. {% endhint %} {% endtab %} {% endtabs %} ## 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](https://docs.optimism.io/op-stack/protocol/smart-contracts#l2crossdomainmessenger) | `0x4200000000000000000000000000000000000007` | Send and receive messages between L1 and L2. | | [L2StandardBridge](https://docs.optimism.io/op-stack/protocol/smart-contracts#l2standardbridge) | `0x4200000000000000000000000000000000000010` | Bridge ETH and ERC-20 tokens between L1 and L2. | | [GasPriceOracle](https://docs.optimism.io/op-stack/protocol/smart-contracts#gaspriceoracle) | `0x420000000000000000000000000000000000000F` | L1 fee estimation for transactions. | | [SequencerFeeVault](https://docs.optimism.io/op-stack/protocol/smart-contracts#sequencerfeevault) | `0x4200000000000000000000000000000000000011` | Holds fees collected by the sequencer. | | [OptimismMintableERC20Factory](https://docs.optimism.io/op-stack/protocol/smart-contracts#optimismmintableerc20factory) | `0x4200000000000000000000000000000000000012` | Create bridgeable ERC-20 tokens on L2. | | [L2ERC721Bridge](https://docs.optimism.io/op-stack/protocol/smart-contracts#l2erc721bridge) | `0x4200000000000000000000000000000000000014` | Bridge ERC-721 (NFT) tokens between L1 and L2. | | [L1Block](https://docs.optimism.io/op-stack/protocol/smart-contracts#l1block) | `0x4200000000000000000000000000000000000015` | Access the latest known L1 block info from L2. | | [L2ToL1MessagePasser](https://docs.optimism.io/op-stack/protocol/smart-contracts#l2tol1messagepasser) | `0x4200000000000000000000000000000000000016` | Send messages from L2 to L1 (used by withdrawals). | | [OptimismMintableERC721Factory](https://docs.optimism.io/op-stack/protocol/smart-contracts#optimismmintableerc721factory) | `0x4200000000000000000000000000000000000017` | Create bridgeable ERC-721 tokens on L2. | | [GovernanceToken](https://docs.optimism.io/op-stack/protocol/smart-contracts#governancetoken) | `0x4200000000000000000000000000000000000042` | OP governance token (EIP-2612 support). | {% hint style="info" %} WETH and Multicall3 are also OP Stack predeploys/preinstalls — they are listed under [Core](#core) above. For full details, see the OP Stack [predeploys](https://docs.optimism.io/op-stack/protocol/smart-contracts#layer-2-contracts-predeploys) documentation. {% endhint %} ## 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](https://github.com/safe-global/safe-smart-account) | `0x69f4D1788e39c87893C980c06EdF4b7f686e2938` | Gnosis Safe multisig wallet. | | [SafeL2](https://github.com/safe-global/safe-smart-account) | `0xfb1bffC9d739B8D520DaF37dF666da4C687191EA` | Gnosis Safe optimized for L2. | | [MultiSend](https://github.com/safe-global/safe-smart-account) | `0x998739BFdAAdde7C933B942a68053933098f9EDa` | Batch multiple Safe transactions. | | [MultiSendCallOnly](https://github.com/safe-global/safe-smart-account) | `0xA1dabEF33b3B82c7814B6D82A79e50F4AC44102B` | Batch multiple read-only calls via Safe. | | [Safe Singleton Factory](https://github.com/safe-global/safe-singleton-factory) | `0x914d7Fec6aaC8cd542e72Bca78B30650d45643d7` | Deterministic deployment for Safe contracts. | | [create2Deployer](https://github.com/pcaversaccio/create2deployer) | `0x13b0D85CcB8bf860b6b79AF3029fCA081AE9beF2` | Deploy contracts to deterministic addresses. | | [CreateX](https://github.com/pcaversaccio/createx) | `0xba5Ed099633D3B313e4D5F7bdc1305d3c28ba5Ed` | Advanced deterministic contract deployment. | | [Deterministic Deployment Proxy](https://github.com/Arachnid/deterministic-deployment-proxy) | `0x4e59b44847b379578588920cA78FbF26c0B4956C` | Arachnid's CREATE2 factory. | | [Permit2](https://github.com/Uniswap/permit2) | `0x000000000022D473030F116dDEE9F6B43aC78BA3` | Uniswap's universal token approval contract. | | [ERC-4337 EntryPoint v0.6](https://github.com/eth-infinitism/account-abstraction/tree/v0.6.0) | `0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789` | Account abstraction entry point (v0.6). | | [ERC-4337 SenderCreator v0.6](https://github.com/eth-infinitism/account-abstraction/tree/v0.6.0) | `0x7fc98430eAEdbb6070B35B39D798725049088348` | Creates sender contracts for ERC-4337 v0.6. | | [ERC-4337 EntryPoint v0.7](https://github.com/eth-infinitism/account-abstraction/tree/v0.7.0) | `0x0000000071727De22E5E9d8BAf0edAc6f37da032` | Account abstraction entry point (v0.7). | | [ERC-4337 SenderCreator v0.7](https://github.com/eth-infinitism/account-abstraction/tree/v0.7.0) | `0xEFC2c1444eBCC4Db75e7613d20C6a62fF67A167C` | Creates sender contracts for ERC-4337 v0.7. | {% hint style="info" %} For full details, see the OP Stack [preinstalls](https://docs.optimism.io/op-stack/features/preinstalls#contracts-and-deployed-addresses) documentation. {% endhint %} ## L1 Contracts (Ethereum) {% tabs %} {% tab title="Mainnet" %} | Name | Address | Notes | | ---------------------------------------- | ----------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------- | | L1StandardBridgeProxy (Canonical Bridge) | [`0x0CA3A2FBC3D770b578223FBB6b062fa875a2eE75`](https://etherscan.io/address/0x0CA3A2FBC3D770b578223FBB6b062fa875a2eE75) | Send ETH here to [bridge](https://docs.megaeth.com/user-guide/bridge) from Ethereum to MegaETH | | OptimismPortalProxy | [`0x7f82f57F0Dd546519324392e408b01fcC7D709e8`](https://etherscan.io/address/0x7f82f57F0Dd546519324392e408b01fcC7D709e8) | Entry point for deposits and withdrawals | | DisputeGameFactoryProxy | [`0x8546840adf796875cd9aacc5b3b048f6b2c9d563`](https://etherscan.io/address/0x8546840adf796875cd9aacc5b3b048f6b2c9d563) | Creates dispute games for fault proofs | | SystemConfigProxy | [`0x1ED92E1bc9A2735216540EDdD0191144681cb77E`](https://etherscan.io/address/0x1ED92E1bc9A2735216540EDdD0191144681cb77E) | On-chain system configuration | | L1CrossDomainMessengerProxy | [`0x6C7198250087B29A8040eC63903Bc130f4831Cc9`](https://etherscan.io/address/0x6C7198250087B29A8040eC63903Bc130f4831Cc9) | Cross-domain message passing | | L1ERC721BridgeProxy | [`0x3D8ee269F87A7f3F0590c5C0d825FFF06212A242`](https://etherscan.io/address/0x3D8ee269F87A7f3F0590c5C0d825FFF06212A242) | Bridge ERC-721 tokens between L1 and L2 | | OptimismMintableERC20FactoryProxy | [`0xF875030B9464001fC0f964E47546b0AFEEbD7C61`](https://etherscan.io/address/0xF875030B9464001fC0f964E47546b0AFEEbD7C61) | Create bridgeable ERC-20 tokens on L1 | | SuperchainConfigProxy | [`0x5d0ff601bc8580d8682c0462df55343cb0b99285`](https://etherscan.io/address/0x5d0ff601bc8580d8682c0462df55343cb0b99285) | Superchain-wide configuration | | ProtocolVersionsProxy | [`0x150355311f965af4937fcca526f9df0573fd5b85`](https://etherscan.io/address/0x150355311f965af4937fcca526f9df0573fd5b85) | Protocol version tracking | | USDM | [`0xEc2AF1C8B110a61fD9C3Fa6a554a031Ca9943926`](https://etherscan.io/address/0xEc2AF1C8B110a61fD9C3Fa6a554a031Ca9943926) | | MegaETH's L1 contracts are from OP Stack's [op-contracts/v3.0.0 release](https://github.com/ethereum-optimism/optimism/tree/backports/op-contracts/v3.0.0/packages/contracts-bedrock). See OP Stack docs for [descriptions of these contracts](https://docs.optimism.io/op-stack/protocol/smart-contracts#l1-contract-details). {% endtab %} {% endtabs %} ## Adding a Token to the Registry To get your token listed, submit a pull request to the [mega-tokenlist](https://github.com/megaeth-labs/mega-tokenlist) repository. {% stepper %} {% step %} #### Create a token folder Create `data/YOUR_TOKEN/` in the repository. {% endstep %} {% step %} #### Add token metadata Create a `data.json` file with your token's name, symbol, decimals, and per-chain addresses. ```json { "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: ```json { "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" } } } ``` {% endstep %} {% step %} #### Add a logo Add a `logo.svg` or `logo.png` (256×256 recommended) to the same folder. {% endstep %} {% step %} #### Submit a PR Open a pull request. Once merged, the token will appear in the generated tokenlist. {% endstep %} {% endstepper %} {% hint style="info" %} EVM addresses must be checksummed ([EIP-55](https://eips.ethereum.org/EIPS/eip-55)). For the full data schema and bridge mechanism types (`native`, `lock`, `mint`, `burn`), see the [mega-tokenlist README](https://github.com/megaeth-labs/mega-tokenlist#token-data-schema). {% endhint %}