ERC-4337 enables Account Abstraction (AA) on Ethereum without requiring any changes to the protocol. Instead of modifying Ethereum's base protocol, it introduces a new flow using UserOperation objects, a decentralized alt-mempool, and an on-chain EntryPoint contract.
This architecture unlocks powerful wallet features like:
- ✅ Custom signature schemes (e.g. passkeys, multisig)
- ✅ Gasless transactions via Paymasters
- ✅ One-click flows through batched calls
- ✅ Modular smart accounts with upgradability and recovery
- ✅ Wallet creation without EOAs or upfront ETH
Unlike centralized relayer-based solutions, ERC-4337 achieves these benefits while preserving decentralization through a permissionless mempool and bundler ecosystem.
This GitBook serves as your technical companion to everything ERC-4337 and beyond. It consolidates specs, summaries, and best practices to help you:
- Build or integrate smart contract wallets
- Understand the UserOperation lifecycle
- Leverage Paymasters for better onboarding
- Explore modularity and emerging standards
- Stay aligned with Ethereum’s decentralization ethos
Let’s build the future of wallets — programmable, recoverable, and user-friendly — without compromising Ethereum's core values.
📖 Start here: Smart Accounts ➡
- 🤖 Powered by ChAAtGPT — a custom GPT focused on Account Abstraction
- 🛠️ This GitBook on GitHub: github.com/eth-infinitism/gitbook
- 📄 License: MIT