Use @nomiclabs/hardhat-verify

Author: cygnusv

hardhat.config.ts

@@ -1,6 +1,7 @@
 import { HardhatUserConfig } from "hardhat/config"
 
 import "@keep-network/hardhat-helpers"
+import "@nomicfoundation/hardhat-verify";
 import "@nomiclabs/hardhat-waffle"
 import "@openzeppelin/hardhat-upgrades"
 import "@tenderly/hardhat-tenderly"
@@ -86,6 +87,9 @@ const config: HardhatUserConfig = {
       apiKey: process.env.ETHERSCAN_API_KEY,
     },
   },
+  etherscan: {
+    apiKey: process.env.ETHERSCAN_API_KEY,
+  },
   external: {
     deployments: {
       // For hardhat environment we can fork the mainnet, so we need to point it

package.json

@@ -32,6 +32,7 @@
   "devDependencies": {
     "@keep-network/hardhat-helpers": "^0.6.0-pre.8",
     "@keep-network/prettier-config-keep": "github:keep-network/prettier-config-keep#d6ec02e",
+    "@nomicfoundation/hardhat-verify": "^2.0.1",
     "@nomiclabs/hardhat-ethers": "^2.0.2",
     "@nomiclabs/hardhat-waffle": "^2.0.1",
     "@openzeppelin/hardhat-upgrades": "^1.12.0",