For the most up-to-date information, please see: <a href="https://eco.com/support/en/articles/14856079-what-is-account-abstraction-erc-4337-in-plain-english"><b>What Is Account Abstraction? ERC-4337 in Plain English</b></a>

ERC-4337 brings account abstraction to Ethereum without a hard fork. Walkthrough of EntryPoint, UserOperation, bundlers, paymasters, factories, plus 2026 wallets, ERC-7702, and native AA.

What Is ERC-4337? Account Abstraction Explained 2026

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What Is ERC-4337? Account Abstraction Explained 2026

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