ERC-4337 – Account Abstraction Explained

When working with ERC-4337, the Ethereum Improvement Proposal that adds account abstraction, letting smart‑contract wallets behave like regular accounts. Also known as Account Abstraction EIP, it moves transaction verification from the protocol core to user‑controlled code.

The idea of Account Abstraction, which lets you define custom signature schemes, is the engine behind ERC-4337. To make this work, the network relies on an EntryPoint contract, a shared on‑chain hub that validates UserOperation objects. Those objects are not transactions; they are requests that a Bundler collects, bundles, and submits to the EntryPoint. In other words, ERC-4337 encompasses account abstraction, requires a bundler to package requests, and uses the EntryPoint contract to enforce rules.

Why does this matter for everyday users? With ERC-4337 you can pay gas in ERC‑20 tokens, use social recovery, or even set up multi‑signature logic without touching the low‑level transaction format. Developers gain a plug‑and‑play layer for custom wallet features, while dApps can offer richer onboarding flows. Below you’ll find guides, reviews, and deep dives that show how these pieces fit together—how to create a smart‑contract wallet, how bundlers earn fees, and what the EntryPoint contract looks like on mainnet. Explore the collection to see practical examples, risk assessments, and the latest updates on this rapidly evolving standard.