Utilities

A set of utilities for ERC-4337 Account Abstraction to help you with your developement

UserOperation utils

createUserOperationHash

Source code

createUserOperationHash

createPackedUserOperation

Source code

createPackedUserOperation

Source code

createCallData

createCallData

Source code

createCallData

fetchAccountNonce

Source code

fetchAccountNonce

fetchGasPrice

Source code

fetchGasPrice

calculateUserOperationMaxGasCost

Source code

calculateUserOperationMaxGasCost

Multicall utils

encodeMultiSendCallData

Source code

encodeMultiSendCallData

decodeMultiSendCallData

decodeMultiSendCallData

Generic Ethereum utils

getFunctionSelector

Source code

getFunctionSelector

sendJsonRpcRequest

Source code

sendJsonRpcRequest