AI shopping agents now have two very different welcomes from America's biggest retailers. On 21 October, Walmart launched Agent Gateway, a system that lets approved AI agents search its inventory and buy things on a shopper's behalf. Amazon, by contrast, has been blocking AI agents from making purchases on its site, TechCrunch reports.
For anyone who uses ChatGPT, Gemini or Meta's Muse to help with errands, this split decides which stores your assistant can actually shop at. It also offers a first working template for how a big retailer can let software spend a customer's money without losing control.
What Walmart's Agent Gateway does for AI shopping agents
Walmart president and chief executive John Furner announced the system at the Masters of Scale Summit in San Francisco, according to TechCrunch consumer news editor Sarah Perez. It covers both Walmart and Sam's Club, the company's warehouse chain.
Agent Gateway is a Model Context Protocol (MCP) server. MCP is the open standard, first created by Anthropic, that lets AI assistants connect to outside tools and data. Through the gateway, an approved agent can:
- Search Walmart's online inventory.
- Place orders for its user.
- Shop for the customer's usual brands and items without the customer handing over personal details or full purchase history to the agent.
Walmart already works with Meta's Muse and integrates with ChatGPT and Gemini, so the gateway formalises connections that were already forming.
Agent Profiles: spending limits for your AI
The more practical piece arrives in November. Walmart will add Agent Profiles to customer accounts. Each agent a customer uses gets its own profile, and its purchases show up separately from the customer's own orders.
Customers can choose between two modes:
- Approve every single transaction the agent tries to make.
- Let the agent buy on its own, up to a spending limit the customer sets.
Walmart compares this to adding an authorised user to a credit card: you can see what that person bought and cap what they spend. A profile is created the first time a customer shops through an agent, it can be deleted at any time, and a Walmart+ membership is not required.
What happens when the agent gets it wrong
This is the question most shoppers will ask first. TechCrunch reports that Walmart says its normal returns process applies, "including when an agent doesn't act as intended." So if your assistant orders the wrong size of nappies or three times the rice you wanted, you return it the usual way.
Walmart also sets rules for agents themselves. They may not take actions beyond what the shopper intends, cannot see the customer's payment information, and can only access the information they need for the task. Agents that break these terms will be blocked from the site.
Why Amazon is going the other way
Amazon has started blocking AI agents that try to buy things for shoppers. TechCrunch notes that Meta's agent was blocked from Amazon.com in September, and that several travel and booking sites have locked AI agents out entirely.
The reasons are not hard to guess. A store that lets outside agents shop on its pages loses control of the shopping experience: product placement, recommendations and advertising all assume a human is looking at the screen. Agents also raise fraud and liability questions. If an assistant makes a mistaken purchase, who pays?
Walmart's answer is to build a controlled entrance rather than leave the door shut. Approved agents come in through the gateway, follow published rules and carry a visible label in the customer's account. That gives Walmart data on how agents shop and keeps it in the conversation as more people delegate errands to AI.
We have already seen what can go wrong when an agent is given broad permissions. Our earlier report, Meta Muse Gave a Seller's Home Address to a Marketplace Buyer, showed how an "always allow" setting can share more than a user expects. Walmart's limits on data access are a direct response to that kind of risk.
What this means for you
If you are in the US and shop at Walmart, you will soon be able to ask a supported assistant to restock groceries or household items and set a budget for it. Start with per-purchase approval until you trust how your agent behaves, then move to a spending cap.
If you are outside the US, including in Africa, Walmart's system will not change your shopping directly. Walmart owns a majority of Massmart in South Africa, but the announcement only covers Walmart and Sam's Club. Still, the model matters. Retailers and e-commerce platforms such as Jumia, Takealot or Konga will face the same choice between blocking agents and building a gateway for them. Walmart has now shown what the second option looks like: a protocol for access, separate profiles, spending caps and a clear returns policy.
What to watch next
- Which agents Walmart approves first, and whether smaller assistants get access or only big platforms.
- Whether Amazon softens its stance or launches its own agent programme.
- How often customers end up returning agent purchases, which will show whether AI shopping agents are ready for everyday use.
AI shopping agents are moving from demos to real checkouts. Walmart has decided it would rather set the rules than be routed around.
