Paymaster Standard

Abstract

Standard interface for paymasters that sponsor gas fees for users.

Specification

Defines paymaster interface for ERC-4337 account abstraction infrastructure.

Motivation

This standard ensures compatibility with the broader EVM ecosystem while enabling Lux-specific optimizations.

Rationale

Mirrors the corresponding Ethereum standard for maximum compatibility.

Backwards Compatibility

Fully compatible with existing ERC implementations.

Reference Implementation

Repository: https://github.com/luxfi/standard Local Path: /Users/z/work/lux/standard/

Contracts

Contract	Description
lib/account-abstraction/contracts/core/BasePaymaster.sol	Base paymaster

Interfaces

• lib/account-abstraction/contracts/interfaces/IPaymaster.sol

Build and Test

cd /Users/z/work/lux/standard

# Build all contracts
forge build

# Run tests
forge test -vvv

# Gas report
forge test --gas-report

Security Considerations

Implementations should follow established security best practices for the corresponding ERC.

Copyright

Copyright and related rights waived via CC0.