Stripe has launched the Machine Payments Protocol (MPP), an open standard co-authored with Tempo that enables AI agents to make programmatic payments over the internet. The protocol supports microtransactions, recurring payments, stablecoins, and traditional payment methods through Stripe's existing infrastructure. Early adopters include Browserbase (pay-per-browser-session), PostalForm (print and mail services), and Prospect Butcher Co. (sandwich ordering in NYC). This creates standardized payment infrastructure for the emerging agent economy where autonomous AI systems need to purchase services and resources independently.