> ## Documentation Index
> Fetch the complete documentation index at: https://base-a060aa97-roethke-b20-upgrade-pages.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Contract Addresses

> A comprehensive list of contract addresses for Base Mainnet and Base Testnet, including links to their respective blockchain explorers.

## L2 Contract Addresses

### Base Mainnet

| Name | Address |
| :- | :- |
| WETH9 | [0x4200000000000000000000000000000000000006](https://basescan.org/address/0x4200000000000000000000000000000000000006) |
| L2CrossDomainMessenger | [0x4200000000000000000000000000000000000007](https://basescan.org/address/0x4200000000000000000000000000000000000007) |
| L2StandardBridge | [0x4200000000000000000000000000000000000010](https://basescan.org/address/0x4200000000000000000000000000000000000010) |
| SequencerFeeVault | [0x4200000000000000000000000000000000000011](https://basescan.org/address/0x4200000000000000000000000000000000000011) |
| OptimismMintableERC20Factory | [0xF10122D428B4bc8A9d050D06a2037259b4c4B83B](https://basescan.org/address/0xF10122D428B4bc8A9d050D06a2037259b4c4B83B) |
| GasPriceOracle | [0x420000000000000000000000000000000000000F](https://basescan.org/address/0x420000000000000000000000000000000000000F) |
| L1Block | [0x4200000000000000000000000000000000000015](https://basescan.org/address/0x4200000000000000000000000000000000000015) |
| L2ToL1MessagePasser | [0x4200000000000000000000000000000000000016](https://basescan.org/address/0x4200000000000000000000000000000000000016) |
| L2ERC721Bridge | [0x4200000000000000000000000000000000000014](https://basescan.org/address/0x4200000000000000000000000000000000000014) |
| OptimismMintableERC721Factory | [0x4200000000000000000000000000000000000017](https://basescan.org/address/0x4200000000000000000000000000000000000017) |
| ProxyAdmin | [0x4200000000000000000000000000000000000018](https://basescan.org/address/0x4200000000000000000000000000000000000018) |
| BaseFeeVault | [0x4200000000000000000000000000000000000019](https://basescan.org/address/0x4200000000000000000000000000000000000019) |
| L1FeeVault | [0x420000000000000000000000000000000000001a](https://basescan.org/address/0x420000000000000000000000000000000000001a) |
| EAS | [0x4200000000000000000000000000000000000021](https://basescan.org/address/0x4200000000000000000000000000000000000021) |
| EASSchemaRegistry | [0x4200000000000000000000000000000000000020](https://basescan.org/address/0x4200000000000000000000000000000000000020) |
| LegacyERC20ETH | [0xDeadDeAddeAddEAddeadDEaDDEAdDeaDDeAD0000](https://basescan.org/address/0xDeadDeAddeAddEAddeadDEaDDEAdDeaDDeAD0000) |

### Base Testnet (Sepolia)

| Name | Address |
| :- | :- |
| WETH9 | [0x4200000000000000000000000000000000000006](https://sepolia.basescan.org/address/0x4200000000000000000000000000000000000006) |
| L2CrossDomainMessenger | [0x4200000000000000000000000000000000000007](https://sepolia.basescan.org/address/0x4200000000000000000000000000000000000007) |
| L2StandardBridge | [0x4200000000000000000000000000000000000010](https://sepolia.basescan.org/address/0x4200000000000000000000000000000000000010) |
| SequencerFeeVault | [0x4200000000000000000000000000000000000011](https://sepolia.basescan.org/address/0x4200000000000000000000000000000000000011) |
| OptimismMintableERC20Factory | [0x4200000000000000000000000000000000000012](https://sepolia.basescan.org/address/0x4200000000000000000000000000000000000012) |
| GasPriceOracle | [0x420000000000000000000000000000000000000F](https://sepolia.basescan.org/address/0x420000000000000000000000000000000000000F) |
| L1Block | [0x4200000000000000000000000000000000000015](https://sepolia.basescan.org/address/0x4200000000000000000000000000000000000015) |
| L2ToL1MessagePasser | [0x4200000000000000000000000000000000000016](https://sepolia.basescan.org/address/0x4200000000000000000000000000000000000016) |
| L2ERC721Bridge | [0x4200000000000000000000000000000000000014](https://sepolia.basescan.org/address/0x4200000000000000000000000000000000000014) |
| OptimismMintableERC721Factory | [0x4200000000000000000000000000000000000017](https://sepolia.basescan.org/address/0x4200000000000000000000000000000000000017) |
| ProxyAdmin | [0x4200000000000000000000000000000000000018](https://sepolia.basescan.org/address/0x4200000000000000000000000000000000000018) |
| BaseFeeVault | [0x4200000000000000000000000000000000000019](https://sepolia.basescan.org/address/0x4200000000000000000000000000000000000019) |
| L1FeeVault | [0x420000000000000000000000000000000000001a](https://sepolia.basescan.org/address/0x420000000000000000000000000000000000001a) |
| EAS | [0x4200000000000000000000000000000000000021](https://sepolia.basescan.org/address/0x4200000000000000000000000000000000000021) |
| EASSchemaRegistry | [0x4200000000000000000000000000000000000020](https://sepolia.basescan.org/address/0x4200000000000000000000000000000000000020) |
| LegacyERC20ETH | [0xDeadDeAddeAddEAddeadDEaDDEAdDeaDDeAD0000](https://sepolia.basescan.org/address/0xDeadDeAddeAddEAddeadDEaDDEAdDeaDDeAD0000) |

*Most L2 predeploy addresses are the same on Base Mainnet and Base Sepolia. Network-specific L2 contracts, such as OptimismMintableERC20Factory, are listed with their respective addresses in each table above.*

## L1 Contract Addresses

### Ethereum Mainnet

| Name | Address |
| :- | :- |
| AddressManager | [0x8EfB6B5c4767B09Dc9AA6Af4eAA89F749522BaE2](https://etherscan.io/address/0x8EfB6B5c4767B09Dc9AA6Af4eAA89F749522BaE2) |
| AggregateVerifier | [0xeEcb8A5944B217585817E802702b1262a049D259](https://etherscan.io/address/0xeEcb8A5944B217585817E802702b1262a049D259) |
| AnchorStateRegistryProxy | [0x909f6cf47ed12f010A796527f562bFc26C7F4E72](https://etherscan.io/address/0x909f6cf47ed12f010A796527f562bFc26C7F4E72) |
| DelayedWETHProxy | [0xd0D07924AdD740a87e41Ca8A0d4CBBf6b074EF71](https://etherscan.io/address/0xd0D07924AdD740a87e41Ca8A0d4CBBf6b074EF71) |
| DisputeGameFactoryProxy | [0x43edB88C4B80fDD2AdFF2412A7BebF9dF42cB40e](https://etherscan.io/address/0x43edB88C4B80fDD2AdFF2412A7BebF9dF42cB40e) |
| L1CrossDomainMessenger | [0x866E82a600A1414e583f7F13623F1aC5d58b0Afa](https://etherscan.io/address/0x866E82a600A1414e583f7F13623F1aC5d58b0Afa) |
| L1ERC721Bridge | [0x608d94945A64503E642E6370Ec598e519a2C1E53](https://etherscan.io/address/0x608d94945A64503E642E6370Ec598e519a2C1E53) |
| L1StandardBridge | [0x3154Cf16ccdb4C6d922629664174b904d80F2C35](https://etherscan.io/address/0x3154Cf16ccdb4C6d922629664174b904d80F2C35) |
| NitroEnclaveVerifier | [0x7F3a16E1fe6Fda64c5AC4296E13ECB9F7B44F6fb](https://etherscan.io/address/0x7F3a16E1fe6Fda64c5AC4296E13ECB9F7B44F6fb) |
| OptimismMintableERC20Factory | [0x05cc379EBD9B30BbA19C6fA282AB29218EC61D84](https://etherscan.io/address/0x05cc379EBD9B30BbA19C6fA282AB29218EC61D84) |
| OptimismPortal | [0x49048044D57e1C92A77f79988d21Fa8fAF74E97e](https://etherscan.io/address/0x49048044D57e1C92A77f79988d21Fa8fAF74E97e) |
| ProxyAdmin | [0x0475cBCAebd9CE8AfA5025828d5b98DFb67E059E](https://etherscan.io/address/0x0475cBCAebd9CE8AfA5025828d5b98DFb67E059E) |
| RiscZeroSetVerifier | [0x5005aBa3DFf7C940fcc1e48DccCAD611a80eEB85](https://etherscan.io/address/0x5005aBa3DFf7C940fcc1e48DccCAD611a80eEB85) |
| RiscZeroVerifierRouter | [0x8EaB2D97Dfce405A1692a21b3ff3A172d593D319](https://etherscan.io/address/0x8EaB2D97Dfce405A1692a21b3ff3A172d593D319) |
| SystemConfig | [0x73a79Fab69143498Ed3712e519A88a918e1f4072](https://etherscan.io/address/0x73a79Fab69143498Ed3712e519A88a918e1f4072) |
| SystemDictator | [0x1fE3fdd1F0193Dd657C0a9AAC37314D6B479E557](https://etherscan.io/address/0x1fE3fdd1F0193Dd657C0a9AAC37314D6B479E557) |
| TEEProverRegistryProxy | [0x1af2A7E537DE2eE795DE5B8BfbB1Ad0DD513A5aA](https://etherscan.io/address/0x1af2A7E537DE2eE795DE5B8BfbB1Ad0DD513A5aA) |
| TEEVerifier | [0x1FbA0C57b07Af804A9717e51dec9CC27FBC12228](https://etherscan.io/address/0x1FbA0C57b07Af804A9717e51dec9CC27FBC12228) |
| ZkVerifier | [0xB88D95bDf6972508942d184866890c1834219B75](https://etherscan.io/address/0xB88D95bDf6972508942d184866890c1834219B75) |

**Unneeded contract addresses**

Certain contracts are mandatory according to the [OP Stack smart contracts overview](https://docs.optimism.io/stack/smart-contracts), despite not being utilized. For such contracts, you can simply assign the zero address:

* `StateCommitmentChain`
* `CanonicalTransactionChain`
* `BondManager`

### Ethereum Testnet (Sepolia)

| Name | Address |
| :- | :- |
| AddressManager | [0x709c2B8ef4A9feFc629A8a2C1AF424Dc5BD6ad1B](https://sepolia.etherscan.io/address/0x709c2B8ef4A9feFc629A8a2C1AF424Dc5BD6ad1B) |
| AggregateVerifier (Multiproof) | [0xd702aaE6221f36Dfe7e8EBC4315D64344A9dB4CB](https://sepolia.etherscan.io/address/0xd702aaE6221f36Dfe7e8EBC4315D64344A9dB4CB) |
| AnchorStateRegistryProxy | [0x2fF5cC82dBf333Ea30D8ee462178ab1707315355](https://sepolia.etherscan.io/address/0x2fF5cC82dBf333Ea30D8ee462178ab1707315355) |
| CertManager | [0x50521128e3eB8708F05129D7B7283737D55a1936](https://sepolia.etherscan.io/address/0x50521128e3eB8708F05129D7B7283737D55a1936) |
| DelayedWETHProxy (FDG) | [0xd3683e4947A7769603Ab6418eC02f000CE3cF30b](https://sepolia.etherscan.io/address/0xd3683e4947A7769603Ab6418eC02f000CE3cF30b) |
| DelayedWETHProxy (Multiproof) | [0xD6e2d9D4f1f8865AC983eE848983fb1979429914](https://sepolia.etherscan.io/address/0xD6e2d9D4f1f8865AC983eE848983fb1979429914) |
| DelayedWETHProxy (PDG) | [0x32cE910d9C6c8F78dc6779c1499aB05F281A054e](https://sepolia.etherscan.io/address/0x32cE910d9C6c8F78dc6779c1499aB05F281A054e) |
| DisputeGameFactoryProxy | [0xd6E6dBf4F7EA0ac412fD8b65ED297e64BB7a06E1](https://sepolia.etherscan.io/address/0xd6E6dBf4F7EA0ac412fD8b65ED297e64BB7a06E1) |
| FaultDisputeGame | [0x6dDBa09bc4cCB0D6Ca9Fc5350580f74165707499](https://sepolia.etherscan.io/address/0x6dDBa09bc4cCB0D6Ca9Fc5350580f74165707499) |
| FaultDisputeGame (Kona) | [0x6dDBa09bc4cCB0D6Ca9Fc5350580f74165707499](https://sepolia.etherscan.io/address/0x6dDBa09bc4cCB0D6Ca9Fc5350580f74165707499) |
| L1CrossDomainMessenger | [0xC34855F4De64F1840e5686e64278da901e261f20](https://sepolia.etherscan.io/address/0xC34855F4De64F1840e5686e64278da901e261f20) |
| L1ERC721Bridge | [0x21eFD066e581FA55Ef105170Cc04d74386a09190](https://sepolia.etherscan.io/address/0x21eFD066e581FA55Ef105170Cc04d74386a09190) |
| L1StandardBridge | [0xfd0Bf71F60660E2f608ed56e1659C450eB113120](https://sepolia.etherscan.io/address/0xfd0Bf71F60660E2f608ed56e1659C450eB113120) |
| MIPS | [0x6463dEE3828677F6270d83d45408044fc5eDB908](https://sepolia.etherscan.io/address/0x6463dEE3828677F6270d83d45408044fc5eDB908) |
| NitroValidator | [0x16970101Ea32243cC80a2e0C91427e8bDA70F689](https://sepolia.etherscan.io/address/0x16970101Ea32243cC80a2e0C91427e8bDA70F689) |
| OptimismMintableERC20Factory | [0xb1efB9650aD6d0CC1ed3Ac4a0B7f1D5732696D37](https://sepolia.etherscan.io/address/0xb1efB9650aD6d0CC1ed3Ac4a0B7f1D5732696D37) |
| OptimismPortal | [0x49f53e41452C74589E85cA1677426Ba426459e85](https://sepolia.etherscan.io/address/0x49f53e41452C74589E85cA1677426Ba426459e85) |
| P384Verifier | [0xa8320712fF181D74e719Ff7E6E1012bbe4687b26](https://sepolia.etherscan.io/address/0xa8320712fF181D74e719Ff7E6E1012bbe4687b26) |
| PermissionedDisputeGame | [0x58bf355C5d4EdFc723eF89d99582ECCfd143266A](https://sepolia.etherscan.io/address/0x58bf355C5d4EdFc723eF89d99582ECCfd143266A) |
| PreimageOracle | [0x1fb8cdFc6831fc866Ed9C51aF8817Da5c287aDD3](https://sepolia.etherscan.io/address/0x1fb8cdFc6831fc866Ed9C51aF8817Da5c287aDD3) |
| ProtocolVersionsProxy | [0x15B721B12CF3b0C4400c8a2935A0Ae391c2eF65b](https://sepolia.etherscan.io/address/0x15B721B12CF3b0C4400c8a2935A0Ae391c2eF65b) |
| ProxyAdmin | [0x0389E59Aa0a41E4A413Ae70f0008e76CAA34b1F3](https://sepolia.etherscan.io/address/0x0389E59Aa0a41E4A413Ae70f0008e76CAA34b1F3) |
| RiscZeroSetVerifier | [0xcb9D14347b1e816831ECeE46EC199144F360B55c](https://sepolia.etherscan.io/address/0xcb9D14347b1e816831ECeE46EC199144F360B55c) |
| RiscZeroVerifierRouter | [0x925d8331ddc0a1F0d96E68CF073DFE1d92b69187](https://sepolia.etherscan.io/address/0x925d8331ddc0a1F0d96E68CF073DFE1d92b69187) |
| SystemConfig | [0xf272670eb55e895584501d564AfEB048bEd26194](https://sepolia.etherscan.io/address/0xf272670eb55e895584501d564AfEB048bEd26194) |
| TEEProverRegistryProxy | [0xf0d7E15673fBA052e83d7f2b26BB6071E86b972e](https://sepolia.etherscan.io/address/0xf0d7E15673fBA052e83d7f2b26BB6071E86b972e) |
| TEEVerifier | [0x92F6dD3501E51B8b20C77b959becaaebeB210e17](https://sepolia.etherscan.io/address/0x92F6dD3501E51B8b20C77b959becaaebeB210e17) |
| ZkVerifier | [0xa738E13d97A3f10b307C2CD190edd3E227A72D68](https://sepolia.etherscan.io/address/0xa738E13d97A3f10b307C2CD190edd3E227A72D68) |

## Base Admin Addresses

### Base Mainnet

| Admin Role | Address | Type of Key |
| :- | :- | :- |
| Base Security Council | [0x20AcF55A3DCfe07fC4cecaCFa1628F788EC8A4Dd](https://etherscan.io/address/0x20AcF55A3DCfe07fC4cecaCFa1628F788EC8A4Dd) | Gnosis Safe |
| Batch Sender | [0x5050f69a9786f081509234f1a7f4684b5e5b76c9](https://etherscan.io/address/0x5050f69a9786f081509234f1a7f4684b5e5b76c9) | EOA managed by Coinbase Technologies |
| Batch Inbox | [0xff00000000000000000000000000000000008453](https://etherscan.io/address/0xff00000000000000000000000000000000008453) | EOA (with no known private key) |
| CB Multisig | [0x9855054731540A48b28990B63DcF4f33d8AE46A1](https://etherscan.io/address/0x9855054731540A48b28990B63DcF4f33d8AE46A1) | Gnosis Safe |
| Output Proposer | [0xc1366Fabe614d42D367A1ecE61821238A1d31cF5](https://etherscan.io/address/0xc1366Fabe614d42D367A1ecE61821238A1d31cF5) | EOA managed by Coinbase Technologies |
| Proxy Admin Owner (L1) | [0x7bB41C3008B3f03FE483B28b8DB90e19Cf07595c](https://etherscan.io/address/0x7bB41C3008B3f03FE483B28b8DB90e19Cf07595c) | Gnosis Safe |
| Challenger | [0x819501cdA743a606A93dbEF254FE0D263Ce7d102](https://etherscan.io/address/0x819501cdA743a606A93dbEF254FE0D263Ce7d102) | EOA managed by Coinbase Technologies |
| SystemConfig owner | [0x14536667Cd30e52C0b458BaACcB9faDA7046E056](https://etherscan.io/address/0x14536667Cd30e52C0b458BaACcB9faDA7046E056) | Gnosis Safe |
| Guardian | [0x7bB41C3008B3f03FE483B28b8DB90e19Cf07595c](https://etherscan.io/address/0x7bB41C3008B3f03FE483B28b8DB90e19Cf07595c) | Gnosis Safe |
| Incident Multisig | [0x14536667Cd30e52C0b458BaACcB9faDA7046E056](https://etherscan.io/address/0x14536667Cd30e52C0b458BaACcB9faDA7046E056) | Gnosis Safe |
| Registrar | [0xd87488Dbb5b6F47cc6c15Dd95Bb60c83D3031b04](https://etherscan.io/address/0xd87488Dbb5b6F47cc6c15Dd95Bb60c83D3031b04) | EOA managed by Coinbase Technologies |

### Base Testnet (Sepolia)

| Admin Role | Address | Type of Key |
| :- | :- | :- |
| Base Security Council | [0x6AF0674791925f767060Dd52f7fB20984E8639d8](https://sepolia.etherscan.io/address/0x6AF0674791925f767060Dd52f7fB20984E8639d8) | Gnosis Safe |
| Batch Sender | [0x6CDEbe940BC0F26850285cacA097C11c33103E47](https://sepolia.etherscan.io/address/0x6CDEbe940BC0F26850285cacA097C11c33103E47) | EOA managed by Coinbase Technologies |
| Batch Inbox | [0xff00000000000000000000000000000000084532](https://sepolia.etherscan.io/address/0xff00000000000000000000000000000000084532) | EOA (with no known private key) |
| CB Multisig | [0x646132A1667ca7aD00d36616AFBA1A28116C770A](https://sepolia.etherscan.io/address/0x646132A1667ca7aD00d36616AFBA1A28116C770A) | Gnosis Safe |
| Output Proposer | [0xdb84125f2f4229c81c579f41bc129c71b174eb58](https://sepolia.etherscan.io/address/0xdb84125f2f4229c81c579f41bc129c71b174eb58) | EOA managed by Coinbase Technologies |
| Proxy Admin Owner (L1) | [0x0fe884546476dDd290eC46318785046ef68a0BA9](https://sepolia.etherscan.io/address/0x0fe884546476dDd290eC46318785046ef68a0BA9) | Gnosis Safe |
| Challenger | [0xadc09b63a3ac57a2ce86d946617a18df9db029a1](https://sepolia.etherscan.io/address/0xadc09b63a3ac57a2ce86d946617a18df9db029a1) | EOA managed by Coinbase Technologies |
| SystemConfig owner | [0x646132A1667ca7aD00d36616AFBA1A28116C770A](https://sepolia.etherscan.io/address/0x646132A1667ca7aD00d36616AFBA1A28116C770A) | Gnosis Safe |
| Guardian | [0x0fe884546476dDd290eC46318785046ef68a0BA9](https://sepolia.etherscan.io/address/0x0fe884546476dDd290eC46318785046ef68a0BA9) | Gnosis Safe |
| Incident Multisig | [0x646132A1667ca7aD00d36616AFBA1A28116C770A](https://sepolia.etherscan.io/address/0x646132A1667ca7aD00d36616AFBA1A28116C770A) | Gnosis Safe |