The Architectural Migration: Equipping Autonomous Software with Programmable Money

Legacy payment infrastructure was built for humans, not software. When autonomous agents need to pay for compute, APIs, or cloud services, they hit webhook delays, manual KYC flows, and reconciliation overhead that assume a person is approving every transaction. x402 settles payments inside a single HTTP round trip, dropping state management from 31 lines of code to zero. The infrastructure is real. The migration is underway.