diff --git a/packages/contracts/hardhat.config.ts b/packages/contracts/hardhat.config.ts
index 32ebc51962..6e261b1074 100644
--- a/packages/contracts/hardhat.config.ts
+++ b/packages/contracts/hardhat.config.ts
@@ -104,6 +104,9 @@ const config: HardhatUserConfig = {
     bobaoperaTestnet: {
       url: 'https://testnet.bobaopera.boba.network',
     },
+    sepolia: {
+      url: 'https://sepolia.gateway.tenderly.co',
+    },
   },
   mocha: {
     timeout: 50000,
@@ -162,6 +165,7 @@ const config: HardhatUserConfig = {
       'boba-mainnet': process.env.BOBA_MAINNET_KEY,
       goerli: process.env.ETHERSCAN_GOERLI_KEY,
       'boba-goerli': process.env.BOBA_MAINNET_KEY,
+      sepolia: process.env.ETHERSCAN_KEY,
       moonbeam: process.env.MOONBEAM_KEY,
       bobabeam: 'DEFAULT_KEY',
       bobabase: 'DEFAULT_KEY',
@@ -288,6 +292,14 @@ const config: HardhatUserConfig = {
           browserURL: 'https://blockexplorer.testnet.bobaopera.boba.network/',
         },
       },
+      {
+        network: 'sepolia',
+        chainId: 11155111,
+        urls: {
+          apiURL: 'https://api-sepolia.etherscan.io/api',
+          browserURL: 'https://sepolia.etherscan.io',
+        },
+      },
     ],
   },
 }
diff --git a/packages/sdk/src/utils/contracts.ts b/packages/sdk/src/utils/contracts.ts
index 925da884a1..dfc02428ec 100644
--- a/packages/sdk/src/utils/contracts.ts
+++ b/packages/sdk/src/utils/contracts.ts
@@ -308,6 +308,20 @@ export const CONTRACT_ADDRESSES: {
     },
     l2: DEFAULT_L2_CONTRACT_ADDRESSES,
   },
+  11155111: {
+    l1: {
+      BondManager: '0x6774dF4FcAe2619DCDa9d2678598b9DAF2Ce9a2A',
+      CanonicalTransactionChain: '0xD428939DA378f8fA0C51271D06ccD15285EF35CA',
+      L1MultiMessageRelayer: '0x6F3B7Eb9F33f49d887C56c7D77839392fBcf54B8',
+      L1MultiMessageRelayerFast: '0x6F3B7Eb9F33f49d887C56c7D77839392fBcf54B8',
+      L1CrossDomainMessengerFast: '0x77227dE5Ef0dDE6271331deA8eD72bE4D699C854',
+      AddressManager: '0x9bfDB898bf6D279629830F72d00c3918aB924072',
+      L1CrossDomainMessenger: '0x77227dE5Ef0dDE6271331deA8eD72bE4D699C854',
+      L1StandardBridge: '0x3C5Dd8BAAa2eD7a1df7F57F1eA4b9Dfde4770232',
+      StateCommitmentChain: '0xb0fC644EB29a8f4aE0b750f5b4f6922ec0420630',
+    },
+    l2: DEFAULT_L2_CONTRACT_ADDRESSES,
+  },
 }
 
 /**
@@ -548,6 +562,18 @@ export const BRIDGE_ADAPTER_DATA: {
       l2Bridge: predeploys.L2StandardBridge,
     },
   },
+  11155111: {
+    Standard: {
+      Adapter: StandardBridgeAdapter,
+      l1Bridge: '0x3C5Dd8BAAa2eD7a1df7F57F1eA4b9Dfde4770232',
+      l2Bridge: predeploys.L2StandardBridge,
+    },
+    ETH: {
+      Adapter: ETHBridgeAdapter,
+      l1Bridge: '0x3C5Dd8BAAa2eD7a1df7F57F1eA4b9Dfde4770232',
+      l2Bridge: predeploys.L2StandardBridge,
+    },
+  },
 }
 
 // TODO: PR is big enough as-is, will add support for SNX in another PR