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

# Blast Contracts

# Mainnet

### L1 Blast Contracts

Core Blast contracts deployed on **Ethereum Mainnet**.

| Name                                                                                              | Address                                      |
| ------------------------------------------------------------------------------------------------- | -------------------------------------------- |
| [L1StandardBridge](https://etherscan.io/address/0x697402166Fbf2F22E970df8a6486Ef171dbfc524)       | `0x697402166Fbf2F22E970df8a6486Ef171dbfc524` |
| [L1BlastBridge](https://etherscan.io/address/0x3a05E5d33d7Ab3864D53aaEc93c8301C1Fa49115)          | `0x3a05E5d33d7Ab3864D53aaEc93c8301C1Fa49115` |
| [L1ERC721Bridge](https://etherscan.io/address/0xa45A0c7C47DB8C6e99b2d7C4939F7f7Cf69C8975)         | `0xa45A0c7C47DB8C6e99b2d7C4939F7f7Cf69C8975` |
| [OptimismPortal](https://etherscan.io/address/0x0Ec68c5B10F21EFFb74f2A5C61DFe6b08C0Db6Cb)         | `0x0Ec68c5B10F21EFFb74f2A5C61DFe6b08C0Db6Cb` |
| [L1CrossDomainMessenger](https://etherscan.io/address/0x5D4472f31Bd9385709ec61305AFc749F0fA8e9d0) | `0x5D4472f31Bd9385709ec61305AFc749F0fA8e9d0` |
| [L2OutputOracle](https://etherscan.io/address/0x826D1B0D4111Ad9146Eb8941D7Ca2B6a44215c76)         | `0x826D1B0D4111Ad9146Eb8941D7Ca2B6a44215c76` |
| [ETHYieldManager](https://etherscan.io/address/0x98078db053902644191f93988341E31289E1C8FE)        | `0x98078db053902644191f93988341E31289E1C8FE` |
| [USDYieldManager](https://etherscan.io/address/0xa230285d5683C74935aD14c446e137c8c8828438)        | `0xa230285d5683C74935aD14c446e137c8c8828438` |
| [LidoYieldProvider](https://etherscan.io/address/0x4316A00D31da1313617DbB04fD92F9fF8D1aF7Db)      | `0x4316A00D31da1313617DbB04fD92F9fF8D1aF7Db` |
| [DsrYieldProvider](https://etherscan.io/address/0x0733F618118bF420b6b604c969498ecf143681a8)       | `0x0733F618118bF420b6b604c969498ecf143681a8` |

### L2 Blast Contracts

Core Blast contracts deployed on **Blast**.

| Name                                                                                                     | Address                                      |
| -------------------------------------------------------------------------------------------------------- | -------------------------------------------- |
| [L2StandardBridge](https://blastscan.io/address/0x4200000000000000000000000000000000000010)              | `0x4200000000000000000000000000000000000010` |
| [L2BlastBridge](https://blastscan.io/address/0x4300000000000000000000000000000000000005)                 | `0x4300000000000000000000000000000000000005` |
| [L2ERC721Bridge](https://blastscan.io/address/0x4200000000000000000000000000000000000014)                | `0x4200000000000000000000000000000000000014` |
| [L2CrossDomainMessenger](https://blastscan.io/address/0x4200000000000000000000000000000000000007)        | `0x4200000000000000000000000000000000000007` |
| [L2ToL1MessagePasser](https://blastscan.io/address/0x4200000000000000000000000000000000000016)           | `0x4200000000000000000000000000000000000016` |
| [OptimismMintableERC20Factory](https://blastscan.io/address/0x4200000000000000000000000000000000000012)  | `0x4200000000000000000000000000000000000012` |
| [OptimismMintableERC721Factory](https://blastscan.io/address/0x4200000000000000000000000000000000000017) | `0x4200000000000000000000000000000000000017` |

### Token Contracts

Token contracts deployed on **Blast**.

| Name                                                                              | Address                                      |
| --------------------------------------------------------------------------------- | -------------------------------------------- |
| [WETH](https://blastscan.io/address/0x4300000000000000000000000000000000000004)   | `0x4300000000000000000000000000000000000004` |
| [USDB](https://blastscan.io/address/0x4300000000000000000000000000000000000003)   | `0x4300000000000000000000000000000000000003` |
| [BLAST](https://blastscan.io/address/0xb1a5700fA2358173Fe465e6eA4Ff52E36e88E2ad)  | `0xb1a5700fA2358173Fe465e6eA4Ff52E36e88E2ad` |
| [WBTC](https://blastscan.io/address/0xF7bc58b8D8f97ADC129cfC4c9f45Ce3C0E1D2692)   | `0xF7bc58b8D8f97ADC129cfC4c9f45Ce3C0E1D2692` |
| [NrETH](https://blastscan.io/address/0x9D020B1697035d9d54f115194c9e04a1e4Eb9aF7)  | `0x9D020B1697035d9d54f115194c9e04a1e4Eb9aF7` |
| [NrUSDB](https://blastscan.io/address/0x96F6b70f8786646E0FF55813621eF4c03823139C) | `0x96F6b70f8786646E0FF55813621eF4c03823139C` |

### Utility Contracts

Commonly used utility contracts deployed on **Blast**.

Blast `CREATE2` factory contract deployments:

| Name                                                                                                                                           | Address                                      |
| ---------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------- |
| [pcaversaccio/create2deployer](https://github.com/pcaversaccio/create2deployer)                                                                | `0x13b0D85CcB8bf860b6b79AF3029fCA081AE9beF2` |
| [pcaversaccio/createx](https://github.com/pcaversaccio/createx)                                                                                | `0xba5Ed099633D3B313e4D5F7bdc1305d3c28ba5Ed` |
| [Arachnid/deterministic-deployment-proxy](https://github.com/Arachnid/deterministic-deployment-proxy)                                          | `0x4e59b44847b379578588920ca78fbf26c0b4956c` |
| [Zoltu/deterministic-deployment-proxy](https://github.com/Zoltu/deterministic-deployment-proxy)                                                | `0x7A0D94F55792C434d74a40883C6ed8545E406D12` |
| [INEFFICIENT\_IMMUTABLE\_CREATE2\_FACTORY\_ADDRESS](https://github.com/ProjectOpenSea/seaport/blob/main/docs/Deployment.md#relevant-addresses) | `0xcfA3A7637547094fF06246817a35B8333C315196` |
| [IMMUTABLE\_CREATE2\_FACTORY\_ADDRESS](https://github.com/ProjectOpenSea/seaport/blob/main/docs/Deployment.md#relevant-addresses)              | `0x0000000000ffe8b47b3e2130213b802212439497` |

Blast Multicall3 deployment (on block `88189`) :

| Name                                            | Address                                      |
| ----------------------------------------------- | -------------------------------------------- |
| [Multicall3](https://github.com/mds1/multicall) | `0xcA11bde05977b3631167028862bE2a173976CA11` |

***

# Testnet

### L1 Blast Contracts

Core Blast testnet contracts deployed on **Sepolia**.

| Name                                                                                                      | Address                                      |
| --------------------------------------------------------------------------------------------------------- | -------------------------------------------- |
| [L1StandardBridge](https://sepolia.etherscan.io/address/0xDeDa8D3CCf044fE2A16217846B6e1f1cfD8e122f)       | `0xDeDa8D3CCf044fE2A16217846B6e1f1cfD8e122f` |
| [L1BlastBridge](https://sepolia.etherscan.io/address/0xc644cc19d2A9388b71dd1dEde07cFFC73237Dca8)          | `0xc644cc19d2A9388b71dd1dEde07cFFC73237Dca8` |
| [L1ERC721Bridge](https://sepolia.etherscan.io/address/0x993385F8A2aD69dfa0884287801191DE9805Ff37)         | `0x993385F8A2aD69dfa0884287801191DE9805Ff37` |
| [OptimismPortal](https://sepolia.etherscan.io/address/0x2757E4430e694F27b73EC9C02257cab3a498C8C5)         | `0x2757E4430e694F27b73EC9C02257cab3a498C8C5` |
| [L1CrossDomainMessenger](https://sepolia.etherscan.io/address/0x9338F298F29D3918D5D1Feb209aeB9915CC96333) | `0x9338F298F29D3918D5D1Feb209aeB9915CC96333` |
| [L2OutputOracle](https://sepolia.etherscan.io/address/0x311fF72DfE214ADF97618DD2E731637E8F41bD8c)         | `0x311fF72DfE214ADF97618DD2E731637E8F41bD8c` |
| [ETHYieldManager](https://sepolia.etherscan.io/address/0xed530ba33b4dc14572864bb9a776c9a42cf89fa5)        | `0xed530ba33b4dc14572864bb9a776c9a42cf89fa5` |
| [TestnetYieldProvider](https://sepolia.etherscan.io/address/0x26B1B9Ff3A25a7D6e4468fA94696e45d066c7d08)   | `0x26B1B9Ff3A25a7D6e4468fA94696e45d066c7d08` |

### L2 Blast Contracts

Core Blast testnet contracts deployed on the **Blast Sepolia**.

| Name                                                                                                             | Address                                      |
| ---------------------------------------------------------------------------------------------------------------- | -------------------------------------------- |
| [L2StandardBridge](https://sepolia.blastscan.io/address/0x4200000000000000000000000000000000000010)              | `0x4200000000000000000000000000000000000010` |
| [L2BlastBridge](https://sepolia.blastscan.io/address/0x4200000000000000000000000000000000000024)                 | `0x4200000000000000000000000000000000000024` |
| [L2CrossDomainMessenger](https://sepolia.blastscan.io/address/0x4200000000000000000000000000000000000007)        | `0x4200000000000000000000000000000000000007` |
| [L2ToL1MessagePasser](https://sepolia.blastscan.io/address/0x4200000000000000000000000000000000000016)           | `0x4200000000000000000000000000000000000016` |
| [OptimismMintableERC20Factory](https://sepolia.blastscan.io/address/0x4200000000000000000000000000000000000012)  | `0x4200000000000000000000000000000000000012` |
| [L2ERC721Bridge](https://sepolia.blastscan.io/address/0x4200000000000000000000000000000000000014)                | `0x4200000000000000000000000000000000000014` |
| [OptimismMintableERC721Factory](https://sepolia.blastscan.io/address/0x4200000000000000000000000000000000000017) | `0x4200000000000000000000000000000000000017` |

### Token Contracts

Testnet USDB can be acquired by bridging the (mock) USD stablecoin below, deployed on **Sepolia**, to Blast Sepolia. More information can be found [HERE](/building/guides/weth-yield#testnet-2).

| Name                                                                                          | Address                                      |
| --------------------------------------------------------------------------------------------- | -------------------------------------------- |
| [(mock) USD](https://sepolia.etherscan.io/address/0x7f11f79DEA8CE904ed0249a23930f2e59b43a385) | `0x7f11f79DEA8CE904ed0249a23930f2e59b43a385` |

Token contracts deployed on **Blast Sepolia**.

| Name                                                                                    | Address                                      |
| --------------------------------------------------------------------------------------- | -------------------------------------------- |
| [WETH](https://sepolia.blastscan.io/address/0x4200000000000000000000000000000000000023) | `0x4200000000000000000000000000000000000023` |
| [USDB](https://sepolia.blastscan.io/address/0x4200000000000000000000000000000000000022) | `0x4200000000000000000000000000000000000022` |

<Warning>
  There is no BLAST token deployment testnet, any ERC20 can be used in its place for testing purposes.
</Warning>