diff --git a/packages/nextjs/.env.example b/packages/nextjs/.env.example
index daed05f3..b8e949a6 100644
--- a/packages/nextjs/.env.example
+++ b/packages/nextjs/.env.example
@@ -19,6 +19,7 @@ NEXT_PUBLIC_POLYGON_ETHERSCAN_API_KEY=
 NEXT_PUBLIC_ARBITRUM_ETHERSCAN_API_KEY=
 NEXT_PUBLIC_SCROLL_ETHERSCAN_API_KEY=
 NEXT_PUBLIC_BSC_ETHERSCAN_API_KEY=
+NEXT_PUBLIC_ETHERSCAN_V2_API_KEY=
 
 NEXT_PUBLIC_HEIMDALL_URL=
 
diff --git a/packages/nextjs/utils/abi.ts b/packages/nextjs/utils/abi.ts
index 838ca1ea..b33e267c 100644
--- a/packages/nextjs/utils/abi.ts
+++ b/packages/nextjs/utils/abi.ts
@@ -2,7 +2,7 @@ import { isZeroAddress } from "./scaffold-eth/common";
 import { Address } from "viem";
 
 export const fetchContractABIFromEtherscan = async (verifiedContractAddress: Address, chainId: number) => {
-  const apiKey = process.env.NEXT_PUBLIC_MAINNET_ETHERSCAN_API_KEY;
+  const apiKey = process.env.NEXT_PUBLIC_ETHERSCAN_V2_API_KEY;
 
   // First call to get source code and check for implementation
   const sourceCodeUrl = `https://api.etherscan.io/v2/api?chainid=${chainId}&module=contract&action=getsourcecode&address=${verifiedContractAddress}&apikey=${apiKey}`;