This project demonstrates a basic ERC-4337 Hardhat project. It comes with a the following samples:

• SimpleAccount.sol - Smart Contract Account that mimics the functionality of an EOA
• BLSAccount.sol - Smart Contract Account that replaces the signature scheme by utilising the aggregated BLS signatures
• TokenPaymaster.sol - Paymaster Contract that allows users to pay gas in ERC-20 tokens instead of native Ether currency
• VerifyingPaymaster.sol - Paymaster Contract that allows a centralized backend server to manage gas payments for its users.

and many more.

Try running the following task:

npx hardhat test