Agentic commerce is commerce where AI agents help shoppers discover, compare, decide, and sometimes buy. This guide covers how it works, the 2026 protocol stack (UCP, ACP, MCP, AP2), what AI agents need from product pages and feeds, how to measure AI visibility, and a 30/60/90 day plan for merchants.
Agentic commerce is not a chatbot on your website. It is a new channel, like search, marketplaces, or social, with its own rules for how products get discovered, evaluated, and recommended. The merchants who win will be the ones whose products agents can retrieve, understand, and trust.
Shoppers ask an AI what to buy, and your product is either in the shortlist or it is not. Testing which is straightforward, but the answer is only as good as the searches you pick. How to draft 30 candidates for a product, cut them to 10 across five query types, and freeze them so the before-and-after means something.