Walmart Opens an Agent Gateway for AI Shoppers as Amazon Keeps Blocking Them
A new MCP server lets approved AI agents search and buy at Walmart and Sam's Club, with per-agent profiles and spending limits, a sharp contrast with Amazon's closed door.
Outspoken Digest Technology Desk
Thursday, October 22, 2026/2 min read

Two of the biggest retailers in the world have now answered the same question in opposite ways. Do AI shopping agents get in, or stay out? Amazon says out. On Wednesday, Walmart said in, with conditions.
Walmart announced its Agent Gateway, a server built on the Model Context Protocol (MCP) that lets approved agents search its inventory and buy for customers, according to TechCrunch. It covers Walmart and its warehouse club, Sam's Club.
How does Walmart's Agent Gateway work?
Walmart says the gateway gives agents a faster and more reliable route than browsing its website the way a person would. In its own announcement, the company says an agent can find a shopper's usual items, such as a regular brand of bread or milk, without receiving the shopper's wider purchase history.
The gateway starts as a beta for companies and developers. It is not yet a consumer product you can switch on from an app store.
What are Agent Profiles?
The consumer side arrives in about a month. Each agent gets its own profile inside a customer's Walmart account, so its purchases appear separately from the customer's own. The profile is created the first time an agent shops through the gateway, and the customer links it by signing in.
Customers can require approval for every purchase or allow spending up to a limit they choose, with examples of $50, $100 or $200. They can see what each agent bought, turn permissions off or delete a profile at any time. TechCrunch says Walmart likens this to adding an authorised user on a credit card.
What rules do the agents have to follow?
Walmart's terms bar agents from acting beyond what the shopper intends and from receiving card details or changing payment methods. They may use only the information a task needs. Agents that break the rules will be blocked from Walmart's site. The returns process applies even if an agent buys the wrong thing, and the same Every Day Low Price applies to agents and people.
Walmart named Meta's Muse, ChatGPT and Gemini among its integrations. That Muse link matters, because Amazon is the rival that shut the door on the same agent, as we reported in September when Amazon blocked Meta's Muse from shopping on its site.
Why does the split matter?
Retailers that welcome agents get sales routed through them, along with a chance to set the rules. Those that block them keep control of the shopper relationship, but risk being invisible when a customer simply asks an assistant to reorder. TechCrunch notes that travel and booking sites have also locked agents out.
The test will be next month, when the first consumers hand their agents a spending limit and see how often the approval prompts appear, and whether any retailer other than Walmart follows.
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