The Agentic Commerce Protocol War: How PayPal, Google, and Coinbase Are Racing to Own AI's Payment Layer
When an AI agent books a flight, orders groceries, or negotiates a software subscription on your behalf, who gets paid to process that transaction? The answer to that question is worth trillions of dollars — and the battle to claim it is already underway.
In October 2025, PayPal and OpenAI announced a landmark partnership: ChatGPT users could check out instantly using PayPal, powered by a new open standard called the Agentic Commerce Protocol (ACP). It was the moment one of the world's largest traditional payment networks formally declared itself ready for the age of autonomous agents. But PayPal wasn't alone — Google, Coinbase, Stripe, and Ant Group were all racing to define the rails that AI agents would use to spend money. The protocol war for agentic commerce had begun.