August 5, 2026 · 6 min read
What Is Account Abstraction? ERC-4337 vs Native AA, Explained
Account abstraction lets a smart contract — not a private key — decide what makes a transaction valid, enabling gasless UX, social recovery, session keys, and batching. This explainer covers the EOA-vs-contract-account split, how ERC-4337 adds AA on top of Ethereum with UserOperations and bundlers, and how chains like zkSync and Starknet make accounts contracts natively.
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