diff --git a/src/app/components/select-network-button/select-network-button.tsx b/src/app/components/select-network-button/select-network-button.tsx
index 9a907d9c..bc6a84b9 100644
--- a/src/app/components/select-network-button/select-network-button.tsx
+++ b/src/app/components/select-network-button/select-network-button.tsx
@@ -28,7 +28,7 @@ export function SelectNetworkButton({
         {enabledEthereumNetworks.map((network, id) => {
           return (
             <MenuItem key={id} value={network.id} onClick={() => handleClick(network)}>
-              {network.name}
+              {network.displayName}
             </MenuItem>
           );
         })}
diff --git a/src/app/hooks/use-endpoints.ts b/src/app/hooks/use-endpoints.ts
index 961357c1..d19ab6b8 100644
--- a/src/app/hooks/use-endpoints.ts
+++ b/src/app/hooks/use-endpoints.ts
@@ -99,6 +99,16 @@ export function useEndpoints(): NetworkEndpoints {
           bitcoinNetwork,
           bitcoinNetworkName,
         };
+      case EthereumNetworkID.ArbSepolia:
+        return {
+          attestorAPIURLs,
+          ethereumExplorerAPIURL: 'https://sepolia.arbiscan.io/tx/',
+          ethereumAttestorChainID: 'evm-arbsepolia',
+          bitcoinExplorerAPIURL,
+          bitcoinBlockchainAPIURL,
+          bitcoinNetwork,
+          bitcoinNetworkName,
+        };
       default:
         throw new Error(`Unsupported network: ${network?.name}`);
     }
diff --git a/src/app/store/slices/vault/vault.slice.ts b/src/app/store/slices/vault/vault.slice.ts
index 52e5d7bb..fbccfee4 100644
--- a/src/app/store/slices/vault/vault.slice.ts
+++ b/src/app/store/slices/vault/vault.slice.ts
@@ -14,6 +14,7 @@ const initialVaultState: VaultSliceState = {
     [EthereumNetworkID.Goerli]: [],
     [EthereumNetworkID.Sepolia]: [],
     [EthereumNetworkID.X1Testnet]: [],
+    [EthereumNetworkID.ArbSepolia]: [],
   },
   status: 'idle',
   error: null,
diff --git a/src/shared/models/ethereum-network.ts b/src/shared/models/ethereum-network.ts
index 1bad0041..09e3dc4b 100644
--- a/src/shared/models/ethereum-network.ts
+++ b/src/shared/models/ethereum-network.ts
@@ -1,6 +1,7 @@
 export interface EthereumNetwork {
   id: EthereumNetworkID;
   name: string;
+  displayName: string;
 }
 
 export enum EthereumNetworkID {
@@ -8,33 +9,45 @@ export enum EthereumNetworkID {
   Goerli = '5',
   Sepolia = '11155111',
   X1Testnet = '195',
+  ArbSepolia = '421614',
 }
 
 const ethereumOKXTestnet: EthereumNetwork = {
   name: 'X1Test',
+  displayName: 'X1 Testnet',
   id: EthereumNetworkID.X1Testnet,
 };
 
 const ethereumMainnet: EthereumNetwork = {
   name: 'Mainnet',
+  displayName: 'ETH Mainnet',
   id: EthereumNetworkID.Mainnet,
 };
 
 const ethereumGoerli: EthereumNetwork = {
   name: 'Goerli',
+  displayName: 'Goerli',
   id: EthereumNetworkID.Goerli,
 };
 
 const ethereumSepolia: EthereumNetwork = {
   name: 'Sepolia',
+  displayName: 'Sepolia',
   id: EthereumNetworkID.Sepolia,
 };
 
+const ethereumArbSepolia: EthereumNetwork = {
+  name: 'ArbSepolia',
+  displayName: 'Arbitrum Sepolia',
+  id: EthereumNetworkID.ArbSepolia,
+};
+
 export const ethereumNetworks: EthereumNetwork[] = [
   ethereumMainnet,
   ethereumGoerli,
   ethereumSepolia,
   ethereumOKXTestnet,
+  ethereumArbSepolia,
 ];
 
 export const hexChainIDs: { [key in EthereumNetworkID]: string } = {
@@ -42,9 +55,24 @@ export const hexChainIDs: { [key in EthereumNetworkID]: string } = {
   [EthereumNetworkID.Goerli]: '0x5',
   [EthereumNetworkID.Sepolia]: '0xAA36A7',
   [EthereumNetworkID.X1Testnet]: '0x3C',
+  [EthereumNetworkID.ArbSepolia]: '0x66eee',
 };
 
 export const addNetworkParams = {
+  [EthereumNetworkID.ArbSepolia]: [
+    {
+      chainId: '0x66eee',
+      rpcUrls: ['https://sepolia-rollup.arbitrum.io/rpc', 'https://arb-sepolia.infura.io/v3/'],
+      chainName: 'Arbitrum Sepolia Testnet',
+      nativeCurrency: {
+        name: 'ETH',
+        symbol: 'ETH',
+        decimals: 18,
+      },
+      blockExplorerUrls: ['https://sepolia.arbiscan.io/'],
+    },
+  ],
+
   [EthereumNetworkID.X1Testnet]: [
     {
       chainId: '0xC3',