web/apps/base-docs/docs/tools/hardhat.md

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Hardhat	/tools/hardhat	Documentation for configuring Hardhat for smart contract development on Base, including setup instructions for mainnet, testnet, and local development environments.	Hardhat Base Base network Base mainnet Base testnet hardhat config hardhat configuration Ethereum development smart contract deployment mainnet testnet local development	true

Hardhat

Hardhat is an Ethereum development environment for flexible, extensible, and fast smart contract development.

You can use Hardhat to edit, compile, debug, and deploy your smart contracts to Base.

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Using Hardhat with Base

To configure Hardhat to deploy smart contracts to Base, update your project’s hardhat.config.ts file by adding Base as a network:

networks: {
   // for mainnet
   "base-mainnet": {
     url: 'https://mainnet.base.org',
     accounts: [process.env.PRIVATE_KEY as string],
     gasPrice: 1000000000,
   },
   // for Base Sepolia testnet
   "base-sepolia": {
     url: "https://sepolia.base.org",
     accounts: [process.env.PRIVATE_KEY as string],
     gasPrice: 1000000000,
   },
   // for local dev environment
   "base-local": {
     url: "http://localhost:8545",
     accounts: [process.env.PRIVATE_KEY as string],
     gasPrice: 1000000000,
   },
 },
 defaultNetwork: "base-local",

:::info

For a complete guide on using Hardhat to deploy contracts on Base, see Deploying a Smart Contract.

:::

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