diff --git a/src/setL2BaseFee.ts b/src/setL2BaseFee.ts
new file mode 100644
index 00000000..64e82192
--- /dev/null
+++ b/src/setL2BaseFee.ts
@@ -0,0 +1,112 @@
+import { PublicClient, WalletClient } from 'viem';
+import { getContract } from 'viem';
+import { validateParentChain } from './types/ParentChain';
+import L1AtomicTokenBridgeCreator from '@arbitrum/token-bridge-contracts/build/contracts/contracts/tokenbridge/ethereum/L1AtomicTokenBridgeCreator.sol/L1AtomicTokenBridgeCreator.json';
+import { arbOwnerPublicActions } from './decorators/arbOwnerPublicActions';
+import { arbGasInfoPublicActions } from './decorators/arbGasInfoPublicActions';
+
+export type BaseFeeParams = {
+  parentChainClient: PublicClient;
+  orbitChainClient: PublicClient;
+  orbitChainWalletClient: WalletClient;
+  tokenBridgeCreatorAddress: `0x${string}`;
+  inboxAddress: `0x${string}`;
+};
+
+export type SetL2BaseFeeParams = {
+  l2BaseFee: bigint;
+};
+
+export type SetMinimumL2BaseFeeParams = {
+  minimumL2BaseFee: bigint;
+};
+
+export async function setL2BaseFee({
+  parentChainClient,
+  orbitChainClient,
+  orbitChainWalletClient,
+  tokenBridgeCreatorAddress,
+  inboxAddress,
+  l2BaseFee,
+}: BaseFeeParams & SetL2BaseFeeParams) {
+  validateParentChain(parentChainClient);
+  const account = orbitChainWalletClient.account?.address;
+
+  if (typeof account === 'undefined') {
+    throw new Error('account is undefined');
+  }
+
+  const extendedOrbitChainClient = orbitChainClient
+    .extend(arbOwnerPublicActions)
+    .extend(arbGasInfoPublicActions);
+
+  const upgradeExecutorProxyAddress = await getUpgradeExecutorProxyAddress(
+    tokenBridgeCreatorAddress,
+    inboxAddress,
+    orbitChainClient,
+  );
+
+  const transactionRequest = await extendedOrbitChainClient.arbOwnerPrepareTransactionRequest({
+    functionName: 'setL2BaseFee',
+    args: [l2BaseFee],
+    upgradeExecutor: upgradeExecutorProxyAddress,
+    account: account,
+  });
+
+  // submit tx to set l2 base fee
+  return await extendedOrbitChainClient.sendRawTransaction({
+    serializedTransaction: await orbitChainWalletClient.signTransaction(transactionRequest),
+  });
+}
+
+export async function setMinimumL2BaseFee({
+  parentChainClient,
+  orbitChainClient,
+  orbitChainWalletClient,
+  tokenBridgeCreatorAddress,
+  inboxAddress,
+  minimumL2BaseFee,
+}: BaseFeeParams & SetMinimumL2BaseFeeParams) {
+  validateParentChain(parentChainClient);
+  const account = orbitChainWalletClient.account?.address;
+
+  if (typeof account === 'undefined') {
+    throw new Error('account is undefined');
+  }
+
+  const extendedOrbitChainClient = orbitChainClient
+    .extend(arbOwnerPublicActions)
+    .extend(arbGasInfoPublicActions);
+
+  const upgradeExecutorProxyAddress = await getUpgradeExecutorProxyAddress(
+    tokenBridgeCreatorAddress,
+    inboxAddress,
+    orbitChainClient,
+  );
+
+  const transactionRequest = await extendedOrbitChainClient.arbOwnerPrepareTransactionRequest({
+    functionName: 'setMinimumL2BaseFee',
+    args: [minimumL2BaseFee],
+    upgradeExecutor: upgradeExecutorProxyAddress,
+    account: account,
+  });
+
+  // submit tx to set minimum l2 base fee
+  return await extendedOrbitChainClient.sendRawTransaction({
+    serializedTransaction: await orbitChainWalletClient.signTransaction(transactionRequest),
+  });
+}
+
+async function getUpgradeExecutorProxyAddress(
+  tokenBridgeCreatorAddress: `0x${string}`,
+  inboxAddress: `0x${string}`,
+  publicClient: PublicClient,
+): Promise<`0x${string}`> {
+  const tokenBridgeCreator = getContract({
+    address: tokenBridgeCreatorAddress,
+    abi: L1AtomicTokenBridgeCreator.abi,
+    publicClient: publicClient,
+  });
+  const deployment: any = await tokenBridgeCreator.read.inboxToL2Deployment([inboxAddress]);
+  return deployment.upgradeExecutor as `0x${string}`;
+}