Agentic commerce in 2026: AI buys for your customers — how stores get picked
A customer can buy from you without ever opening your site. They tell ChatGPT 'order me espresso beans under €20'. An AI agent, a program that carries out tasks on its own, finds the product, compares options and completes the payment. This is called agentic commerce, and it already works: in late 2025 OpenAI and Stripe launched purchases right inside ChatGPT, and Google released a payments protocol for AI agents, a shared set of rules for how an agent pays a store.
It may seem to concern only Amazon and big brands. But a small store should understand it now, because an AI agent chooses where to buy by different rules than the search and ads you're used to. This article covers what already works (with numbers from Adobe, Salesforce and Bain), why it matters for a store in Estonia, and what to fix on your site so that through AI people can not only find your products but also buy them.
What agentic commerce is — in plain words
An ordinary online purchase runs through a human: you open the site, pick a product, add it to the cart, type in a card. Agentic commerce removes some of those clicks. The customer gives the AI agent a task, and the agent completes the purchase itself — finds the product, checks stock and price, confirms with the customer and pays.
It's the difference between 'google me a coffee grinder' and 'buy me a coffee grinder under €60'. In the first case the AI shows options and the person does the rest. In the second the agent takes it all the way to payment. That needed shared rules (standards) for an agent to pay a store safely on the customer's behalf. They appeared in 2025.
What already shipped in 2025–2026
Within a few months, big companies launched things that didn't exist before:
- OpenAI and Stripe launched Instant Checkout, which lets people buy right inside ChatGPT. They also opened up the Agentic Commerce Protocol (ACP), the rules for connecting a store to such purchases. U.S. Etsy sellers went first, with over a million Shopify merchants next. If a store already takes payments through Stripe, it can switch these payments on with roughly one line of code, which means very little work for a developer.
- In September 2025 Google introduced the Agent Payments Protocol (AP2). These are open rules under which the agent shows the store a digitally signed authorisation proving that a real person approved the purchase. More than 60 partners joined at launch, including Mastercard, PayPal, American Express and Adyen.
- Visa (Intelligent Commerce) and Mastercard (Agent Pay) released their own programs so a card still works when it's the customer's AI agent, not the person, doing the buying.
Why it matters even for a small store
People already come to stores from AI. By Adobe Analytics' count, visits from AI services such as ChatGPT grew 693% year over year in November–December 2025. At online retailers those visitors bought 31% more often than people who came from other sources, and revenue per visit from AI was up 254%. Salesforce estimates that AI influenced 20% of global online sales last holiday season, around $262 billion.
Bain & Company projects that by 2030, 15–25% of U.S. online retail sales will go through AI agents. For now, buying inside ChatGPT works mostly in the U.S. and only one item at a time. But ACP and AP2 are open standards that no single company owns. That gives an Estonian store time to prepare while competitors still see it as something for the American market.
What makes a store an AI agent can buy from
An agent doesn't look at pretty pages or notice a '−20%' banner. It reads product data. So the store that wins is the one whose data is easiest for the agent to read:
- Complete, tidy data on every product: accurate name, price, stock, attributes, and schema markup (Product, Offer), the hidden code a machine reads this data from. If the price is 'on request' and stock is unclear, the agent moves on.
- A fast, simple checkout. The fewer steps, the easier it is for the agent to finish the purchase, and the easier it is to connect a standard like ACP or AP2 to your store.
- A place in AI answers. Before it buys, the agent has to find you and decide you can be trusted. That takes a clear site structure, facts, reviews and mentions of you on other sites.
- Help with choosing. Filters, comparison and recommendations help both a person and an agent quickly see which of your products fits the request.
How an agent walks through your store, step by step
Take a small coffee roastery. The agent gets the task 'espresso beans under €20' and often never opens the shop's pages at all. It reads the product feed (a file listing all products and their details) or the Product/Offer markup. It keeps the items with an exact price, stock level and bag weight, drops the ones priced 'on request', and matches the tasting notes to the request.
Then checkout decides. The agent needs the price with delivery, the delivery time and the payment method in a form a program can read. If they're missing, it moves on to a store that has them. A human buyer needs the same information, so the work isn't wasted. Check it yourself: take your best-selling product and see whether the data on its page is enough to place an order with no photos, no banners and no help from a salesperson.
Where to start this week
You don't need to roll out agentic commerce all at once. It's enough to put the basics of your store in order. They help you sell to ordinary buyers anyway:
- Check your product pages: does each have an accurate price, stock, photo and attributes — and is Product/Offer schema in place?
- Simplify checkout: cut extra steps and fields, speed up loading, test payment on a phone.
- Make AI search cite you: direct answers, an FAQ, reviews and directories (more on how that works in our article linked below).
- If your store runs on Stripe or Shopify, find out what your platform already supports for payments by AI agents. And don't block AI robots in your robots.txt file.
What not to expect (honest caveats)
You can't set this up once and wait for sales to pour in from ChatGPT. Buying inside AI works only in some countries and usually for one item at a time, and you don't decide which product the agent picks. It's one more sales channel. It doesn't replace your site or your ads.
There are risks too. When an agent chooses, good design and emotional appeal don't help: price, stock and product data decide. So a store's weak spots, such as thin margins or an untidy catalogue, become more visible. You'll also measure results differently: not only visits, but how often AI names your store and what share of orders comes through the new channels. If you'd first like to understand why 2026 is called the year of agentic AI, start with our article (linked below).
Frequently asked questions
- Does this work in Estonia right now?
- For now, buying directly inside ChatGPT works mostly in the U.S. and for one item at a time. But the Agentic Commerce Protocol and Google's AP2 are open standards, and Visa and Mastercard are already preparing for them, so this kind of buying is spreading fast. The sensible move for an Estonian store is to prepare the basics now: product data, a fast checkout and a place in AI answers.
- How is agentic commerce different from an AI advisor in a store?
- An AI advisor helps the buyer on your site: it answers questions and suggests a product, and the person pays themselves. Agentic commerce is when the customer's AI agent makes the purchase, often not on your site at all but through ChatGPT or another platform. The first helps you sell to people already on your site; the second brings in buyers through a new channel.
- Do I urgently need to rebuild everything?
- No. Almost everything an agent needs also helps you sell to ordinary buyers: accurate product data, schema markup, a fast checkout and good visibility in search and AI answers. Start there, and connect technical standards like ACP and AP2 when this kind of buying reaches your market.