Contract Addresses

This reference guide lists all the contract addresses.

This page is for the Sepolia-based Zircuit Legacy Testnet, which was deprecated in June 2025. Please use the Garfield Testnet, which replaced the Legacy Testnet.

Legacy Testnet

Sepolia (L1)

Contract Name	Contract Address
L1CrossDomainMessengerProxy	0x2De7B7364A37fBB35F946cA7175A1b596710b262
L1StandardBridgeProxy	0x0545c5fe980098C16fcD0eCB5E79753afa6d9af9
ProxyAdmin	0x8CBA4B6bD772d72Af8Ce4bb0faf3c8db9106C94A
SystemConfigProxy	0x1D11cBc91DC6fcfEC9b987dAf20252dbd577c902
VerifierProxy	0x1a561626BA439Ed76F1123B9CbE8F7FD2CdD67FD
OptimismPortalProxy	0x787f1C8c5924178689E0560a43D848bF8E54b23e
OptimismMintableERC20FactoryProxy	0xe7Ce84a93855b2bA8B4E2eB432388dff7b8eFd82
L2OutputOracleProxy	0x740C2dac453aEf7140809F80b72bf0e647af8148
L1ERC721BridgeProxy	0xAD008079E3BF985fC772395d5CE77FF4718e85F3

Zircuit Legacy Testnet (L2)

Contract Name	Contract Address
BaseFeeVault	0x4200000000000000000000000000000000000019
GasPriceOracle	0x420000000000000000000000000000000000000F
L1Block	0x4200000000000000000000000000000000000015
L1FeeVault	0x420000000000000000000000000000000000001A
L2CrossDomainMessenger	0x4200000000000000000000000000000000000007
L2ERC721Bridge	0x4200000000000000000000000000000000000014
L2StandardBridge	0x4200000000000000000000000000000000000010
L2ToL1MessagePasser	0x4200000000000000000000000000000000000016
OptimismMintableERC20Factory	0x4200000000000000000000000000000000000012
OptimismMintableERC721Factory	0x4200000000000000000000000000000000000017
ProxyAdmin	0x4200000000000000000000000000000000000018
SequencerFeeVault	0x4200000000000000000000000000000000000011
WETH9	0x4200000000000000000000000000000000000006
SchemaRegistry	0x4200000000000000000000000000000000000020
EAS	0x4200000000000000000000000000000000000021

Zircuit Legacy Testnet (L2 Preinstalls)

Contract Name	Contract Address
Safe	0x69f4D1788e39c87893C980c06EdF4b7f686e2938
SafeL2	0xfb1bffC9d739B8D520DaF37dF666da4C687191EA
Multicall3	0xcA11bde05977b3631167028862bE2a173976CA11
MultiSend	0x998739BFdAAdde7C933B942a68053933098f9EDa
MultiSendCallOnly	0xA1dabEF33b3B82c7814B6D82A79e50F4AC44102B
SafeSingletonFactory	0x914d7Fec6aaC8cd542e72Bca78B30650d45643d7
DeterministicDeploymentProxy	0x4e59b44847b379578588920cA78FbF26c0B4956C
create2deployer	0x13b0D85CcB8bf860b6b79AF3029fCA081AE9beF2
permit2	0x000000000022D473030F116dDEE9F6B43aC78BA3
ERC-4337 EntryPoint	0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789
ERC-4337 SenderCreator	0x7fc98430eAEdbb6070B35B39D798725049088348