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Agentic commerce is online buying where an AI agent performs the discovery, comparison, and sometimes the checkout on a shopper’s behalf, rather than the shopper browsing a storefront directly. The shopper states an intent — “find me a waterproof hiking boot under £150 in a wide fit” — and the agent queries catalogues, compares options, and returns a shortlist or completes the order.

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Why it changes ecommerce SEO

In a browser-led purchase, a store competes on the storefront: imagery, layout, reviews, persuasion. In an agent-led purchase, the agent never sees the storefront as a human does. It consumes structured, machine-readable product data. The consequences:
  • Structured product data becomes the product page. Price, availability, GTIN, variants, shipping, and returns must be present as machine-readable markup, not only as rendered text or images.
  • Accuracy outranks presentation. An agent filtering on “in stock, wide fit, under £150” will exclude a product whose data does not say so, regardless of how good the page looks.
  • Specification completeness wins comparisons. Missing attributes cannot be compared, so incomplete products drop out of consideration sets rather than losing on merit.
  • Persuasive copy has little effect. The agent is matching constraints, not being convinced.

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What it asks of a store

  • Valid Product structured data on every product page, including offers, price, priceCurrency, and availability
  • Distinct, individually addressable variants rather than a single page with options hidden behind scripts
  • Product attributes stated as data — material, dimensions, fit, compatibility — not only in prose or images
  • Feeds and markup kept in sync with real inventory, since stale availability data causes silent exclusion
  • Body content readable without JavaScript execution

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Current state

Agentic commerce is live but fragmented. Several protocols now exist:
  • Agentic Commerce Protocol (ACP), from OpenAI and Stripe, defines how agents such as ChatGPT hand off checkout to a merchant.
  • Universal Commerce Protocol (UCP), co-developed by Google and Shopify with other retailers, covers discovery through checkout and post-purchase.
  • Agent Payments Protocol (AP2), from Google, covers payments made by agents.
Shopify storefronts now publish an /agents.md file that points shopping agents to Shopify’s tools for catalog search and checkout — open yourstore.com/agents.md to see yours. Support still differs by agent and platform, so the durable preparation is unchanged: complete, accurate, machine-readable product data — which also serves conventional search and shopping surfaces.