Shipping on Chain

Account abstraction & the frontier

Lesson 5 of 5

Seed phrases and gas are the reason your parents are not on-chain. Smart accounts, paymasters and EIP-7702 remove both, and you can read a live delegation off mainnet today.

What you'll learn

Explain the ERC-4337 flow: UserOperation → bundler → EntryPoint → smart account, and what a paymaster does
Describe how passkeys replace seed phrases and what EIP-7702 changes for existing wallets
Separate the durable ideas from the hype in 2026's Web3 landscape

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Not sure yet? Try the free lesson first: Security: the exploits that defined the industry