ERC-4337 Account Abstraction UserOperation builder — construct, sign, pack UserOps for Bundlers
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Jul 29, 2026 - Python
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useroperation
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Background billing engine that processes recurring Web3 subscription payments using Account Abstraction.
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Aug 11, 2026 - TypeScript
Smart contracts powering decentralized recurring subscription billing using Account Abstraction.
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Updated
Aug 11, 2026 - Solidity
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