Stablecoins: Power AI Agent Micropayments

Stablecoins emerge as the only viable rail when AI agents execute thousands of sub-cent payments daily, since credit cards charge 31¢ on a 1¢ transaction. Phil Kwok highlighted this dynamic on August 26, 2026, amplifying a16zcrypto analysis that traditional rails break the economics of machine-to-machine flows. The shift accelerates demand for stablecoins for AI agent micropayments economics and positions blockchain rails for machine-to-machine economy history as the backbone of the coming agent economy.