Kinto EntryPoint

Deployment Address

**Mainnet: ** 0x2843C269D2a64eCfA63548E8B3Fc0FD23B7F70cb

Code: EntryPoint.sol

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Basics

• Serves as a single EntryPoint implementation for Account Abstraction (EIP-4337).

• Manages user operations, including validation, execution, and compensation for operations.

• Supports aggregated operations from multiple aggregators.

• Implements functionalities related to stake management and nonce management.

• Provides interface support checks and utilities for handling delegate calls and reverts

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State Functions

setWalletFactory(address _walletFactory) external

handleOps(UserOperation[] calldata ops, address payable beneficiary) public nonReentrant

handleAggregatedOps(UserOpsPerAggregator[] calldata opsPerAggregator, address payable beneficiary) public nonReentrant

getSenderAddress(bytes calldata initCode) public

delegateAndRevert(address target, bytes calldata data) external

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1. setWalletFactory (Admin only)

Sets the wallet factory address.

function setWalletFactory(address _walletFactory) external;

Parameter	Type	Explanation
_walletFactory	address	The address of the wallet factory.

2. handleOps

Handles an array of user operations.

function handleOps(UserOperation[] calldata ops, address payable beneficiary) public nonReentrant;

Parameter	Type	Explanation
ops	UserOperation[] calldata	Array of user operations.
beneficiary	address payable	Address to receive the fees.

3. handleAggregatedOps

Handles aggregated operations from multiple aggregators.

function handleAggregatedOps(UserOpsPerAggregator[] calldata opsPerAggregator, address payable beneficiary) public nonReentrant;

Parameter	Type	Explanation
opsPerAggregator	UserOpsPerAggregator[] calldata	Array of operations per aggregator.
beneficiary	address payable	Address to receive the fees.

4. getSenderAddress

Gets the address of a sender based on the provided initialization code.

function getSenderAddress(bytes calldata initCode) public;

Parameter	Type	Explanation
initCode	bytes calldata	The initialization code.

5. delegateAndRevert

Delegates a call to another contract and reverts.

function delegateAndRevert(address target, bytes calldata data) external;

Parameter	Type	Explanation
target	address	The target address of the delegatecall.
data	bytes calldata	The data to be sent in the call.

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View Function

supportsInterface(bytes4 interfaceId) public view virtual override returns (bool)

getUserOpHash(UserOperation calldata userOp) public view returns (bytes32)

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1. supportsInterface

Checks if the contract supports an interface.

function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool);

Parameter	Type	Explanation
interfaceId	bytes4	The interface identifier.

2. getUserOpHash

Gets the hash of a user operation.

function getUserOpHash(UserOperation calldata userOp) public view returns (bytes32);

Parameter	Type	Explanation
userOp	UserOperation calldata	The user operation.

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Events

1. FailedOp Emitted when an operation fails.

   event FailedOp(uint256 opIndex, string reason);

2. FailedOpWithRevert Emitted when an operation fails with a revert reason.

   event FailedOpWithRevert(uint256 opIndex, string reason, bytes returnData);

3. PostOpRevertReason Emitted when a post-operation reverts.

   event PostOpRevertReason(bytes32 userOpHash, address sender, uint256 nonce, bytes revertReason);

4. UserOperationRevertReason Emitted when a user operation reverts.

   event UserOperationRevertReason(bytes32 userOpHash, address sender, uint256 nonce, bytes revertReason);

5. AccountDeployed Emitted when an account is deployed.

   event AccountDeployed(bytes32 userOpHash, address sender, address factory, address paymaster);

6. BeforeExecution Emitted before execution of operations.

   event BeforeExecution();

7. SignatureAggregatorChanged Emitted when the signature aggregator is changed.

   event SignatureAggregatorChanged(address aggregator);

8. UserOperationEvent Emitted for each user operation event.

   event UserOperationEvent(bytes32 userOpHash, address sender, address paymaster, uint256 nonce, bool success, uint256 actualGasCost, uint256 actualGas);

9. PostOpReverted Emitted when a post-operation is reverted.

   event PostOpReverted(bytes reason);

10. SenderAddressResult Emitted for the result of getSenderAddress.

    event SenderAddressResult(address sender);

11. DelegateAndRevert Emitted when delegateAndRevert is called.

    event DelegateAndRevert(bool success, bytes ret);