The arrival of agentic payment APIs resolves the question that launched a thousand demos — can an AI agent actually spend money without a human co-signing each transaction? It can. What the APIs do not resolve is what happens next: whether the thing was shipped, whether it arrived, whether the agent's record of the transaction matches the vendor's. Fulfillment infrastructure was built for humans who can refresh a tracking page and call a support line. Agents cannot do either, and the infrastructure problem behind the AI agent boom is now…