# What is agentic commerce and how does it work

> What agentic commerce is, how discovering, recommending and buying separate, and what works today in ChatGPT and Google versus what is only announced.

URL: https://clione.ai/glossary/agentic-commerce/
Lang: en

When someone asks ChatGPT or [Gemini](/glossary/gemini/) for "waterproof trail running shoes for under a hundred dollars" and gets back three products with prices and a button to buy, that is agentic commerce. It is not a customer service _chatbot_ bolted onto your site or a new _marketplace_: it is **an [AI agent](/glossary/ai-agent/) that buys, or helps buy, on a person's behalf**. A store cares for a practical reason: the buyer can choose your product without ever having opened your [product page](/glossary/product-page/), so what the agent knows about you is what reaches it through your data.

## How it works

Stripe, which processes payments for much of this activity, describes it as using AI agents to facilitate transactions between buyers and sellers, and to let agents buy on behalf of the people they serve.[^stripe-agentic] That one sentence holds three different jobs, and separating them organizes almost every decision a store makes.

**Discovering.** The agent has to know your product exists, what it costs and whether it is in stock. OpenAI receives that data through the [ACP (Agentic Commerce Protocol)](/glossary/acp/): merchants share their [product feed](/glossary/product-feed/) and their promotions, directly or through providers such as Salesforce or Stripe, and Shopify stores reach ChatGPT through [Shopify Catalog](/glossary/shopify-catalog/) with no extra work.[^openai-discovery] On Google, the first step to buy from its AI surfaces is setting up the [Google Merchant Center](/glossary/google-merchant-center/) account: shipping, returns and feed.[^google-ucp-guide]

**Recommending.** The agent chooses what to show and in what order. OpenAI says its product results are selected independently by ChatGPT, that they are not ads, and that when several merchants sell the same item it orders them by availability, price, quality and whether they are the manufacturer or the primary seller.[^openai-shopping-help]

**Carrying out the purchase.** Payment can happen in three places: on your site, after the agent sends the buyer there; inside the assistant, with your system charging behind the scenes; or without the person present, under a permission signed in advance. That third case is the one Google's [AP2 (Agent Payments Protocol)](/glossary/ap2/) addresses: proving that the user gave the agent authority for that specific purchase, that the request reflects what the user wanted, and who is responsible if the transaction goes wrong.[^ap2]

## What works today and what is only announced

This field changes every few months, and **almost everything that already works is in the United States**. What each company has published, as of October 6, 2026:

| Date         | Who                    | What                                                                                                                                                      | Status                                                                 |
| ------------ | ---------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------- |
| Sep 16, 2025 | Google                 | Introduces AP2, an open protocol for agent-initiated payments                                                                                             | Protocol published[^ap2]                                               |
| Sep 29, 2025 | OpenAI and Stripe      | [Instant Checkout](/glossary/instant-checkout/): single-item purchase inside ChatGPT from US Etsy sellers, for US users                                   | Launched in the US[^openai-buy]                                        |
| Jan 11, 2026 | Google                 | The [UCP (Universal Commerce Protocol)](/glossary/ucp/) and Google Pay checkout inside [AI Mode](/glossary/google-ai-mode/) and Gemini, with US merchants | Announced as coming[^google-ucp-launch]                                |
| Mar 24, 2026 | OpenAI                 | The ACP expands to discovery; merchants can use their own checkout                                                                                        | Rolling out to all ChatGPT plans[^openai-discovery]                    |
| May 20, 2026 | Google                 | Universal Cart, deferred payment with Affirm and Klarna, hotels and food delivery                                                                         | "In the coming months"; Canada and Australia, then the UK[^google-gml] |
| Today        | Google Merchant Center | UCP integration                                                                                                                                           | Gradual rollout in the US; Australia and Canada later[^google-mc-ucp]  |

The March 2026 change says the most about where things stand. OpenAI explained that the first version of Instant Checkout did not give merchants the flexibility it was after, so it lets them use their own checkout **while it concentrates its effort on product discovery**.[^openai-discovery] Its help center still says that, for some eligible products and merchants, ChatGPT may show the option to pay without leaving the chat.[^openai-shopping-help]

## In a store

A **fictional example**: a store that sells stovetop espresso makers. A customer asks an assistant for "an induction-compatible moka pot for six cups that isn't aluminum." Each phase of agentic commerce reads something different from that store:

| Phase        | What the agent needs                                                | Where the store has it                                                                  |
| ------------ | ------------------------------------------------------------------- | --------------------------------------------------------------------------------------- |
| Discovering  | The product to exist for the agent, with up-to-date price and stock | The feed each platform receives and the store's catalog                                 |
| Recommending | Material, capacity, induction compatibility, reviews                | Each product's data, complete and consistent with the published product page            |
| Carrying out | A payment the merchant accepts and processes                        | The payment gateway and, if the platform supports it, the integration with its protocol |

If the feed says "stainless steel" and the product page says "aluminum," the problem shows up in the second row before anyone gets to pay. The first row is where Clione acts: it generates, from the enriched catalog, a daily feed for ChatGPT, which it uploads to the SFTP account OpenAI gives the merchant, and a supplemental feed for Google Merchant Center. Whether the products appear, and where, is up to each platform.


Agentic commerce is often read as "paying inside the chat," and read that way it seems like something that does not yet touch a store outside the United States. OpenAI's March 2026 change says the opposite: **the purchase can end on your site while the agent still does the work of searching and recommending**, fed by merchants' feeds.[^openai-discovery]


## How to check

1. **Ask a customer's question** in ChatGPT, without your brand, and note whether your product comes up, at what price and which merchants it lists. OpenAI builds that list from third-party data or the merchant's own, and warns that a change in price or shipping can take a while to show.[^openai-shopping-help]
2. **Review your feed's status in Google Merchant Center**: shipping, returns and products without errors are the starting point for any purchase from Google's AI surfaces.[^google-ucp-guide]
3. **If you sell on Shopify**, check that each product's data in your admin is complete: it is what Shopify Catalog carries to ChatGPT without you doing anything else.[^openai-discovery]
4. **Compare what the agent says with your published product page**: price, stock and the attribute that decided the recommendation. If they do not match, the fault is in the data reaching it, not in the agent.

## Related concept: agentic AI

[Agentic AI](/glossary/agentic-ai/) is the technology: systems that decide their own steps and use tools to complete a task. Agentic commerce is one of its applications, buying, with problems of its own: who the seller is, who charges, who answers for a mistake. That is why the commerce protocols insist on the same point: in the ACP, OpenAI acts as the buyer's agent and the store accepts or rejects the order, charges through its own provider and handles shipping and customer service as it always has;[^openai-buy] in the UCP, Google says merchants remain the seller.[^google-ucp-launch] And within agentic commerce, [agentic checkout](/glossary/agentic-checkout/) is only the last phase.

To go further, the [agentic commerce reading path](/learn/agentic-commerce/) lays out the protocols that connect an agent to a store, starting with the [MCP (Model Context Protocol)](/glossary/mcp/).