
La bifurcation du commerce numérique : analyse comparative du Universal Commerce Protocol et de l’Agentic Commerce Protocol
AI agents are turning commerce into machine-to-machine negotiation: fewer clicks, more protocols. This report compares OpenAI’s Agentic Commerce Protocol (ACP), built for frictionless in-chat checkout, with Google’s Universal Commerce Protocol (UCP), designed to keep the open web interoperable via cryptographic “mandates” and intent-driven “Direct Offers.” We trace the evolution from monolithic storefronts to headless APIs, then show how trust, payments, and structured data become the new battleground. Finally, we stress-test both approaches in hospitality, where dynamic inventory and high-stakes bookings reveal who wins when the “storefront” is an agent.





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