Tech Inside AMEX’s agentic commerce stack: How intent contracts and single-use tokens enforce AI transactions davidt76May 4, 202601 views Inside AMEX’s agentic commerce stack: How intent contracts and single-use tokens enforce AI transactions Vercel Security Checkpoint | cle1::1777976814-c76ruj4WhKiPyFtdsYPKuWWAd0JTON5o