diff --git a/aggregators/eisen/index.ts b/aggregators/eisen/index.ts
index a97591649e..c2ae37c16b 100644
--- a/aggregators/eisen/index.ts
+++ b/aggregators/eisen/index.ts
@@ -9,6 +9,7 @@ type TPool = {
 };
 
 const FEE_COLLECTORS: TPool = {
+  [CHAIN.BERACHAIN]: ["0xE53744A85a12FCC38005d180c18f04F8EF0FB719"],
   [CHAIN.SCROLL]: ["0xA06568773A247657E7b89BBA465014CF85702093"],
   [CHAIN.ZIRCUIT]: ["0x6bD912872B9e704a70f10226ab01A2Db87D0dd1C"],
   [CHAIN.LINEA]: ["0x206168f099013b9eAb979d3520cA00aAD453De55"],
@@ -34,6 +35,7 @@ const START_BLOCKS = {
   [CHAIN.CRONOS]: 1704067200,
   [CHAIN.TAIKO]: 1704067200,
   [CHAIN.MODE]: 1704067200,
+  [CHAIN.BERACHAIN]: 1704067200,
 };
 
 async function fetch({ getLogs, createBalances, chain }: FetchOptions) {
diff --git a/fees/eisen.ts b/fees/eisen.ts
index ec04332ba7..c34f1b6d72 100644
--- a/fees/eisen.ts
+++ b/fees/eisen.ts
@@ -1,17 +1,15 @@
-import {
-  FetchOptions,
-  SimpleAdapter,
-} from "../adapters/types";
+import { FetchOptions, SimpleAdapter } from "../adapters/types";
 import { CHAIN } from "../helpers/chains";
 
 const event_swap =
-  "event EisenSwapCompleted(address indexed sender, address indexed fromAssetId, address indexed toAssetId, address receiver, uint256 fromAmount, uint256 toAmount, uint256 expectedToAmount, uint256 fee)"
+  "event EisenSwapCompleted(address indexed sender, address indexed fromAssetId, address indexed toAssetId, address receiver, uint256 fromAmount, uint256 toAmount, uint256 expectedToAmount, uint256 fee)";
 
 type ROUTER = {
   [c: string]: string[];
 };
 const ROUTER_ADDRESS: ROUTER = {
   [CHAIN.BASE]: ["0x14C3B68e5855B60263b10eC0fCE54DE3e28AD880"],
+  [CHAIN.BERACHAIN]: ["0xE53744A85a12FCC38005d180c18f04F8EF0FB719"],
   [CHAIN.BLAST]: ["0xd57Ed7F46D64Ec7b6f04E4A8409D88C55Ef8AA3b"],
   [CHAIN.CORE]: ["0x6bD912872B9e704a70f10226ab01A2Db87D0dd1C"],
   [CHAIN.MODE]: ["0x37Cb37b752DBDcd08A872e7dfec256A216C7144C"],
@@ -30,13 +28,8 @@ const fetch = async ({ getLogs, createBalances, chain }: FetchOptions) => {
     eventAbi: event_swap,
   });
 
-  logs.forEach((i) => {
-    if (i.toAssetId.toLowerCase() === '0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE'.toLowerCase()) {
-      dailyFees.addGasToken(i.fee);
-    } else {
-      dailyFees.add(i.toAssetId, i.fee)
-    }
-  });
+  logs.forEach((i) => dailyFees.add(i.toAssetId, i.fee));
+
   return {
     dailyFees: dailyFees,
     dailyRevenue: dailyFees,
@@ -47,6 +40,7 @@ const adapter: SimpleAdapter = {
   version: 2,
   adapter: {
     [CHAIN.BASE]: { fetch, start: "2024-11-23" },
+    [CHAIN.BERACHAIN]: { fetch, start: "2025-02-06" },
     [CHAIN.BLAST]: { fetch, start: "2024-05-10" },
     [CHAIN.CORE]: { fetch, start: "2024-10-01" },
     [CHAIN.MODE]: { fetch, start: "2024-03-17" },