Skip to main content
This reference guide lists all the contract addresses for OP Stack chains, as found on the superchain-registry. This doc will periodically be updated with addresses across the Superchain. See the Smart Contracts Overview for high-level details and access to the source code.
This page is automatically generated from packages in the superchain-registry which keeps the content synced and up-to-date.

​
Mainnet

​
Ethereum Superchain Contracts (L1)

​
Ethereum (L1)

​
Ethereum Legacy Contracts (L1)

​
OP Mainnet (L2)

Contract NameContract Address
L2ToL1MessagePasser0x4200000000000000000000000000000000000016
L2CrossDomainMessenger0x4200000000000000000000000000000000000007
L2StandardBridge0x4200000000000000000000000000000000000010
L2ERC721Bridge0x4200000000000000000000000000000000000014
SequencerFeeVault0x4200000000000000000000000000000000000011
OptimismMintableERC20Factory0x4200000000000000000000000000000000000012
OptimismMintableERC721Factory0x4200000000000000000000000000000000000017
L1Block0x4200000000000000000000000000000000000015
GasPriceOracle0x420000000000000000000000000000000000000F
ProxyAdmin0x4200000000000000000000000000000000000018
BaseFeeVault0x4200000000000000000000000000000000000019
L1FeeVault0x420000000000000000000000000000000000001A
GovernanceToken0x4200000000000000000000000000000000000042
SchemaRegistry0x4200000000000000000000000000000000000020
EAS0x4200000000000000000000000000000000000021

​
OP Mainnet Legacy Contracts (L2)

Contract NameContract Address
L1MessageSender0x4200000000000000000000000000000000000001
DeployerWhitelist0x4200000000000000000000000000000000000002
LegacyERC20ETH0xDeadDeAddeAddEAddeadDEaDDEAdDeaDDeAD0000
L1BlockNumber0x4200000000000000000000000000000000000013
LegacyMessagePasser0x4200000000000000000000000000000000000000

​
Testnet (Sepolia)

​
Sepolia Superchain Contracts (L1)

​
Sepolia (L1)

​
OP Sepolia (L2)

Contract NameContract Address
L2ToL1MessagePasser0x4200000000000000000000000000000000000016
L2CrossDomainMessenger0x4200000000000000000000000000000000000007
L2StandardBridge0x4200000000000000000000000000000000000010
L2ERC721Bridge0x4200000000000000000000000000000000000014
SequencerFeeVault0x4200000000000000000000000000000000000011
OptimismMintableERC20Factory0x4200000000000000000000000000000000000012
OptimismMintableERC721Factory0x4200000000000000000000000000000000000017
L1Block0x4200000000000000000000000000000000000015
GasPriceOracle0x420000000000000000000000000000000000000F
ProxyAdmin0x4200000000000000000000000000000000000018
BaseFeeVault0x4200000000000000000000000000000000000019
L1FeeVault0x420000000000000000000000000000000000001A
GovernanceToken0x4200000000000000000000000000000000000042
SchemaRegistry0x4200000000000000000000000000000000000020
EAS0x4200000000000000000000000000000000000021