What is Account Abstraction?
Last reviewed 2026-05-03
First defined in: Account Abstraction via Entry Point Contract Specification (ERC-4337) (2021) by Vitalik Buterin et al.
Cite / Read deeper: DeFi Intel account abstraction deep-dive
Account abstraction lets smart contracts act as user accounts, replacing externally owned accounts (EOAs). Users gain features like social recovery, batched transactions, gas sponsorship, and session keys.
ERC-4337 implements AA without consensus changes via a UserOperation mempool, bundlers, and paymasters. EIP-7702 (Pectra, 2025) extends AA-style behavior to existing EOAs by allowing one-shot delegation to contract code.
How it works
Account abstraction lets smart contracts act as user accounts, replacing externally owned accounts (EOAs). Users gain features like social recovery, batched transactions, gas sponsorship, and session keys.
ERC-4337 implements AA without consensus changes via a UserOperation mempool, bundlers, and paymasters. EIP-7702 (Pectra, 2025) extends AA-style behavior to existing EOAs by allowing one-shot delegation to contract code.
For deeper protocol-level mechanics, see the related glossary terms below or the linked DeFi Intel topic deep-dive.
Why it matters
AA is the UX upgrade Ethereum has needed for a decade — gas sponsorship, social recovery, batched ops, and passkey signing. EIP-7702 (Pectra) accelerates adoption.
Real-world examples
Safe smart accounts, Argent (social recovery), Coinbase Smart Wallet, Ambire, ZeroDev, Biconomy paymasters.
Related terms
Go deeper
Read the full DeFi Intel topic deep-dive or browse the complete crypto glossary.
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