hardhat.config.ts

import { HardhatUserConfig } from "hardhat/config";
import "@nomicfoundation/hardhat-toolbox";
import * as dotenv from "dotenv";

dotenv.config();

const config: HardhatUserConfig = {
  solidity: "0.8.20",
  networks: {
    // Layer 1 Testnets
    sepolia: {
      url: `https://sepolia.infura.io/v3/${process.env.INFURA_API_KEY}`,
      accounts: [process.env.PRIVATE_KEY!]
    },
    
    // Layer 2 Testnets
    arbitrumSepolia: {
      url: "https://sepolia-rollup.arbitrum.io/rpc",
      accounts: [process.env.PRIVATE_KEY!]
    },
    polygonMumbai: {
      url: "https://rpc-mumbai.maticvigil.com",
      accounts: [process.env.PRIVATE_KEY!]
    },
    baseGoerli: {
      url: "https://goerli.base.org",
      accounts: [process.env.PRIVATE_KEY!]
    },
    scrollSepolia: {
      url: "https://sepolia-rpc.scroll.io",
      accounts: [process.env.PRIVATE_KEY!]
    },
    zircuitTestnet: {
      url: "https://zircuit1-testnet.p2pify.com",
      chainId: 48899,
      accounts: [process.env.PRIVATE_KEY!]
    }
  },
  etherscan: {
    apiKey: {
      sepolia: process.env.ETHERSCAN_API_KEY!,
      arbitrumSepolia: process.env.ARBISCAN_API_KEY!,
      polygonMumbai: process.env.POLYGONSCAN_API_KEY!,
      baseGoerli: process.env.BASESCAN_API_KEY!,
      scrollSepolia: process.env.SCROLLSCAN_API_KEY!,
      zircuitTestnet: process.env.ZIRCUIT_API_KEY!
    },
    customChains: [
      {
        network: "baseGoerli",
        chainId: 84531,
        urls: {
          apiURL: "https://api-goerli.basescan.org/api",
          browserURL: "https://goerli.basescan.org"
        }
      },
      {
        network: "scrollSepolia",
        chainId: 534351,
        urls: {
          apiURL: "https://api-sepolia.scrollscan.com/api",
          browserURL: "https://sepolia.scrollscan.com"
        }
      },
      {
        network: "zircuitTestnet",
        chainId: 48899,
        urls: {
          apiURL: "https://explorer.testnet.zircuit.com/api/contractVerifyHardhat",
          browserURL: "https://explorer.testnet.zircuit.com"
        }
      }
    ]
  }
};

export default config;