Walmart Opens Its Store to AI Shopping Agents as Amazon Blocks Them: What Agent Gateway Means for Brands

Walmart is opening its store to outside AI shopping agents just as Amazon shuts them out. On October 21, 2026, Walmart announced Agent Gateway, an MCP server that lets approved agents search inventory and buy for customers at Walmart and Sam's Club. Agent Profiles, coming next month, add spending limits and approvals. Amazon, meanwhile, is blocking third-party agents and pushing its own assistant instead.

What did Walmart announce?

Walmart announced two tools that let customers shop through the AI agents they already use, plus a set of rules those agents must follow. CEO John Furner discussed them at the Masters of Scale Summit in San Francisco, according to TechCrunch. The details come from Walmart's own announcement:

• Walmart Agent Gateway is an MCP (Model Context Protocol) server that lets approved agents search inventory and buy for a shopper. It opens first as a developer beta.
• Agent Profiles give each agent its own profile inside a customer's account, with purchases shown separately.
• Terms for AI agents limit what agents can see and do, with blocking as the penalty.

Walmart says an agent can reorder a shopper's usual items without seeing their wider purchase history or personal data.

How do Agent Profiles work?

Agent Profiles work like adding an authorized user to a credit card, the comparison Walmart itself uses. Setup takes three steps:

1. The first time an agent shops through Agent Gateway, Walmart creates a profile for it.
2. The customer signs in to Walmart to connect the agent.
3. The customer sets controls and sees every agent's purchases in one place.

Customers can approve every purchase or let an agent buy up to a limit, such as $50, $100 or $200. Approval is the default, and profiles can be deleted at any time. TechCrunch reports that Walmart+ is not required; Walmart's post doesn't mention it.

What rules do AI agents have to follow?

Agents have to stick to what the shopper asked for. Under Walmart's terms:

• Agents cannot take actions beyond the customer's intent.
• Agents can access only the information the task needs and the customer allows.
• Agents never receive payment card details and cannot add or change payment methods.
• Walmart's normal returns process applies, even when an agent does not act as intended.
• Agents that break the terms will be blocked from Walmart's site.

On pricing, Walmart says agents see the same prices a person sees on Walmart.com, summed up in the line "We price products, not people."

Why is Amazon blocking AI shopping agents?

Amazon says outside agents create security and privacy risks and do not identify themselves properly. The clearest case is Meta's Muse agent. TechSpot reported in September that Amazon blocked Muse, saying it accessed the store and shopped without disclosing it was an agent. Meta disputed that, saying Muse cannot see users' passwords or payment methods.

Amazon also sued Perplexity in November 2025 over its Comet agent and in March 2026 won a temporary order stopping Comet from buying on Amazon, per Bloomberg Law.

Amazon is not against AI shopping, only AI it doesn't control. In May it replaced its Rufus assistant with Alexa for Shopping, which can compare products, track prices and automate purchases, Modern Retail reported. Amazon also runs Buy for Me, which buys from other retailers' sites on a customer's behalf. Some of those retailers have complained they never opted in, which critics see as a double standard. CEO Andy Jassy has said Amazon expects to partner with third-party agents eventually.

Who wins and who loses from these two approaches?

Nobody knows yet, because agent-driven buying is still small. Axios reports that only 16% of shoppers are comfortable letting an AI assistant buy for them, citing Coveo's 2026 Commerce Relevance Report.

The case for Walmart's bet:

• Its everyday low prices could appeal to agents told to find the best deal.
• It sells practical goods like groceries and household items, which shoppers are more willing to hand to an AI.

The case for Amazon's caution:

• GlobalData's Neil Saunders told Axios that Amazon wants to protect its "closed ecosystem" and likely fears agents will hurt its ad business. Ads brought in about $68 billion for Amazon last year, according to Forbes figures cited by TechSpot.
• Agents that skip product pages also skip sponsored listings.

What are the risks and criticisms?

The biggest open questions are about mistakes, money and trust:

• Errors: The returns policy covers agent misfires, but not every wrong order, such as perishable groceries, is easy to return.
• Pricing fairness: Groundwork Collaborative CEO Lindsay Owens has accused Walmart of using technology to vary prices by shopper behavior and demand, per Axios. Walmart calls those claims misleading and inaccurate. The same-price promise for agents will be watched closely.
• Security: Every agent connection is a new attack surface, and pre-authorized limits shift some risk to shoppers.
• Gatekeeping: Walmart decides which agents are "approved." An open door with a bouncer is still a gate.

What does this mean for brands and marketers?

The "shopper" reading your product data may increasingly be an AI agent. When an agent reorders a shopper's usual items or picks "the best paper towels under $20," it relies on what large language models and retailer catalogs say about your products. If your brand is missing, mislabeled or described with outdated claims, the agent may simply choose someone else, and no human ever sees your packaging or your ad.

Practical steps worth taking now:

1. Audit how AI models describe your brand. Ask ChatGPT, Gemini and others the questions your buyers ask, and track your share of answers over time. Tools like MarkGrid Model Share measure this across models.
2. Clean up product data at the retailer level. Titles, attributes, sizes and claims on Walmart.com feed what agents read through the Gateway.
3. Build content machines can parse. Clear specs, comparison pages and consistent naming help both search and generative engines. Our GEO guide covers the basics.
4. Rethink retail media budgets. If more purchases bypass sponsored listings, measure which spend still reaches buyers. See our post on AI visibility metrics worth tracking.

Brands now face two kinds of AI shoppers, open third-party agents and closed in-house assistants, and visibility in both matters. For background, read what AI agents in marketing actually do.

FAQ

What is Walmart Agent Gateway?

It is an MCP server that lets approved AI agents search Walmart's inventory and buy for customers. It launched October 21, 2026, as a developer beta.

When do Walmart Agent Profiles launch?

Walmart says within the next month. Each agent gets a deletable profile with spending limits or per-purchase approval.

Do I need Walmart+ to use AI agents at Walmart?

No. TechCrunch reports that any Walmart account holder can use Agent Profiles without a Walmart+ membership.

Can AI agents see my credit card details at Walmart?

No. Walmart's terms say agents never receive payment card details and cannot add or change payment methods.

Why did Amazon block Meta's Muse agent?

Amazon cited security and privacy risks and said Muse did not identify itself as an agent. Meta disputed this. Analysts also point to Amazon's ad business.

Does Amazon have its own AI shopping agent?

Yes. Amazon replaced Rufus with Alexa for Shopping in May 2026 and runs Buy for Me, which purchases from other retailers' websites for customers.

Last updated October 22, 2026.