diff --git a/contracts/SmartRoute/DODOGasProxy.sol b/contracts/SmartRoute/DODOGasProxy.sol
index b1f08c0..30f8621 100644
--- a/contracts/SmartRoute/DODOGasProxy.sol
+++ b/contracts/SmartRoute/DODOGasProxy.sol
@@ -21,9 +21,13 @@ contract DODOGasProxy is InitializableOwnable {
     // DODOApproveProxy address for token claiming
     address public immutable _DODO_APPROVE_PROXY_;
     uint256 public nonce;
+    uint256 public totalGasFee; // Total transferred in gas fee collected
+    uint256 public totalBridgeGasFee; // Total bridge gas fee collected
     
     // Gas fee mapping for each target chain
     mapping(uint64 => uint256) public chainGasFee;
+    // Gas fee mapping for each cross-chain bridge
+    mapping(uint64 => uint256) public bridgeGasFee;
     // Whitelist mapping for approved contracts
     mapping(address => bool) public isWhiteListedContract;
     // Whitelist mapping for approved approve contracts
@@ -34,15 +38,32 @@ contract DODOGasProxy is InitializableOwnable {
     
     // Pause state
     bool public paused;
+
+    // For readability
+    struct ChainGasFee {
+        uint64 chainId;
+        uint256 gasFee;
+    }
+
+    struct BridgeGasFee {
+        uint64 chainId;
+        uint256 gasFee;
+    }
+
+    uint64[] internal chainIndexs;
+    uint64[] internal bridgeIndexs;
     
     // ============ Events ============
     
     event GasFeeChanged(uint64 chainId, uint256 newFee);
+    event BridgeGasFeeChanged(uint64 chainId, uint256 newFee);
     event WhiteListChanged(address indexed target, bool isWhiteListed);
     event WhiteListApproveChanged(address indexed target, bool isWhiteListed);
     event BotChanged(address indexed newBot);
     event GasFeePaid(address payer, uint64 chainId, uint256 gasFee, bytes32 externalID);
+    event BridgeGasFeePaid(address payer, uint64 chainId, uint256 gasFee, bytes32 externalID);
     event PausedStateChanged(bool newState);
+    event NativeDrip(address payer, uint64 chainId, uint256 amount, bytes32 externalID);
 
     // ============ Modifiers ============
     
@@ -99,10 +120,27 @@ contract DODOGasProxy is InitializableOwnable {
         
         for (uint256 i = 0; i < chainIds.length; i++) {
             chainGasFee[chainIds[i]] = gasFees[i];
+            bridgeIndexs.push(chainIds[i]);
             emit GasFeeChanged(chainIds[i], gasFees[i]);
         }
     }
 
+    /// @notice Batch set gas fees for cross-chain bridges
+    /// @param chainIds Array of chain IDs
+    /// @param gasFees Array of corresponding gas fees
+    function batchSetBridgeGasFee(
+        uint64[] calldata chainIds,
+        uint256[] calldata gasFees
+    ) external onlyBot {
+        require(chainIds.length == gasFees.length, "DODOGasProxy: LENGTH_MISMATCH");
+        
+        for (uint256 i = 0; i < chainIds.length; i++) {
+            bridgeGasFee[chainIds[i]] = gasFees[i];
+            bridgeIndexs.push(chainIds[i]);
+            emit BridgeGasFeeChanged(chainIds[i], gasFees[i]);
+        }
+    }
+
     /// @notice Batch set contract whitelist status
     /// @param targets Array of target addresses
     /// @param isWhiteListed Array of whitelist status
@@ -142,6 +180,8 @@ contract DODOGasProxy is InitializableOwnable {
     /// @param approveTarget Address to approve tokens for
     /// @param executeTarget Contract to execute call on
     /// @param transferInGasFee Extra amount of gas fee transferred in
+    /// @param transferbridgeGasFee Extra amount of gas fee for bridge transferred in
+    /// @param nativeDrip Extra amount of native token to drip to target contract
     /// @param callData Call data for target contract
     function proxyCall(
         uint64 chainId,
@@ -150,6 +190,8 @@ contract DODOGasProxy is InitializableOwnable {
         address approveTarget,
         address executeTarget,
         uint256 transferInGasFee,
+        uint256 transferbridgeGasFee,
+        uint256 nativeDrip,
         bytes calldata callData
     ) external payable whenNotPaused returns (bytes memory) {
         // Check if target contract is whitelisted
@@ -157,15 +199,16 @@ contract DODOGasProxy is InitializableOwnable {
         require(isWhiteListedContract[executeTarget], "DODOGasProxy: NOT_WHITELISTED");
         
         // Check and collect gas fee
-        uint256 requiredGasFee = chainGasFee[chainId];
-        require(requiredGasFee > 0, "DODOGasProxy: GAS_FEE_NOT_SET");
-        require(transferInGasFee > requiredGasFee, "DODOGasProxy: INSUFFICIENT_TRANSFER_IN_GAS_FEE");
+        require(chainGasFee[chainId] > 0 && bridgeGasFee[chainId] > 0, "DODOGasProxy: GAS_FEE_NOT_SET");
+        require(transferInGasFee >= chainGasFee[chainId], "DODOGasProxy: INSUFFICIENT_TRANSFER_IN_GAS_FEE");
+        require(transferbridgeGasFee >= bridgeGasFee[chainId], "DODOGasProxy: INSUFFICIENT_BRIDGE_GAS_FEE");
+
         
         // Transfer user tokens
         if(fromToken == _ETH_ADDRESS_) {
-            require(msg.value >= fromTokenAmount + transferInGasFee, "DODOGasProxy: INVALID_ETH_AMOUNT");
+            require(msg.value >= fromTokenAmount + transferInGasFee + transferbridgeGasFee + nativeDrip, "DODOGasProxy: INVALID_ETH_AMOUNT");
         } else {
-            require(msg.value >= transferInGasFee, "DODOGasProxy: INVALID_GAS_FEE");
+            require(msg.value >= transferInGasFee + transferbridgeGasFee + nativeDrip, "DODOGasProxy: INVALID_GAS_FEE");
             // Use DODOApproveProxy to claim tokens instead of transferFrom
             IDODOApproveProxy(_DODO_APPROVE_PROXY_).claimTokens(
                 fromToken,
@@ -181,18 +224,41 @@ contract DODOGasProxy is InitializableOwnable {
         
         // generate externalID
         nonce++;
-        bytes32 externalID = keccak256(abi.encodePacked(block.timestamp, msg.sender, chainId, transferInGasFee, nonce));
-        emit GasFeePaid(msg.sender, chainId, requiredGasFee, externalID);
+        bytes32 externalID = keccak256(abi.encodePacked(block.timestamp, msg.sender, chainId, transferInGasFee, transferbridgeGasFee, nonce));
+        totalGasFee += transferInGasFee;
+        totalBridgeGasFee += transferbridgeGasFee;
+        emit GasFeePaid(msg.sender, chainId, transferInGasFee, externalID);
+        emit BridgeGasFeePaid(msg.sender, chainId, transferbridgeGasFee, externalID);
 
         // Call target contract
         (bool success, bytes memory result) = executeTarget.call{
-            value: fromToken == _ETH_ADDRESS_ ? fromTokenAmount : 0
+            value: fromToken == _ETH_ADDRESS_ ? fromTokenAmount + nativeDrip : nativeDrip
         }(callData);
+
+        if(nativeDrip > 0) {
+            emit NativeDrip(msg.sender, chainId, nativeDrip, externalID);
+        }
         
         require(success, "DODOGasProxy: CALL_FAILED");
         return result;
     }
 
+    function getChainGasFee() public view returns (ChainGasFee[] memory) {
+        ChainGasFee[] memory list = new ChainGasFee[](chainIndexs.length);
+        for (uint256 i = 0; i < chainIndexs.length; i++) {
+            list[i] = ChainGasFee(chainIndexs[i], chainGasFee[chainIndexs[i]]);
+        }
+        return list;
+    }
+
+    function getBridgeGasFee() public view returns (BridgeGasFee[] memory) {
+        BridgeGasFee[] memory list = new BridgeGasFee[](bridgeIndexs.length);
+        for (uint256 i = 0; i < bridgeIndexs.length; i++) {
+            list[i] = BridgeGasFee(bridgeIndexs[i], bridgeGasFee[bridgeIndexs[i]]);
+        }
+        return list;
+    }
+
     receive() external payable {}
     fallback() external payable {}
 }
diff --git a/contracts/SmartRoute/DOODGasDistributor.sol b/contracts/SmartRoute/DOODGasDistributor.sol
index c35a42a..68fbcd3 100644
--- a/contracts/SmartRoute/DOODGasDistributor.sol
+++ b/contracts/SmartRoute/DOODGasDistributor.sol
@@ -50,7 +50,8 @@ contract DOODGasDistributor is InitializableOwnable {
         emit Distribution(to, distributionAmount, externalId);
     }
     
-    function setMaxAmount(uint256 _maxAmount) external onlyOwner {
+    function setMaxAmount(uint256 _maxAmount) external {
+        require(msg.sender == bot || msg.sender == _OWNER_, "Only bot or owner");
         maxAmount = _maxAmount;
         emit MaxAmountUpdated(_maxAmount);
     }