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AI agents start buying for you. Walmart opens the door, Amazon shuts it

24 October 2026 · 2 min read · 4 sources

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Walmart
TechCrunch
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Digital Commerce 360

21 OctWalmart opens its store to AI agents

Until now, an AI assistant gave advice and the customer bought. That line is moving. On 21 October 2026 Walmart announced its own gateway that lets approved AI agents search for and buy products on a customer's behalf. A week earlier, Google started rolling out a shopping cart in the United States that works across web stores, in Search and in the Gemini app.

What Walmart is doing

The Walmart Agent Gateway is a server on the Model Context Protocol, the standard AI agents use to talk to other systems. An agent like ChatGPT, Gemini or Meta's Muse can use it to search the Walmart and Sam's Club range and place an order.

The customer stays in control. With Agent Profiles, which Walmart says will arrive in November, each agent gets its own profile in the account. You see its purchases separately and choose whether it asks permission per order or may buy within a spending limit. The agent never sees payment details, and the normal return policy applies if an agent orders something you did not mean.

Amazon takes the other side

According to TechCrunch, Amazon has started blocking AI agents that buy on behalf of customers. Travel and booking sites sometimes shut agents out entirely too. Walmart deliberately chooses the opposite: better to decide how agents come in than to keep them out.

Google builds along: the Universal Cart

Since mid October, Google has been rolling out the Universal Cart in the United States, in Search and in the Gemini app. You save products from different stores, keep an eye on price and stock, and check out through the Universal Commerce Protocol. Google itself calls it one of two tracks: agents that act on your behalf, and tools that keep the buyer in control.

What does this mean for you?

For now this is mostly happening in the United States, but the direction is clear: the assistant becomes not only the place where customers make a choice, but also where they pay.
So if you sell, you first need to be in the assistant's answer. An agent buys from who it knows and trusts: businesses that are mentioned often and well, with correct details on price, stock and delivery.
Also check that your site does not accidentally shut out agents and AI crawlers. The free AI crawler check shows you in a few seconds.

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