Walmart announced Agent Gateway on October 21, 2026, a way for approved AI agents to search Walmart and Sam’s Club inventory and buy items on a customer’s behalf. Amazon, according to TechCrunch, is doing the opposite and has started blocking those agents from making purchases. Neither company has said what this means for third-party marketplace sellers.
Below are the confirmed facts, what is still unknown, and what a small seller can do for free.
What did Walmart announce?
According to TechCrunch, Walmart President and CEO John Furner made the announcement at the Masters of Scale Summit in San Francisco. Agent Gateway is an MCP server. MCP stands for Model Context Protocol, a standard that lets an AI assistant connect to an outside system and carry out tasks in it. Through the gateway, an approved agent can search Walmart’s online inventory and make purchases for its user.
Walmart says customers can shop for their usual brands and items without handing personal information or purchase history directly to the agent. The same source says Walmart had already announced a partnership with Meta’s Muse agent and offers integrations with apps including ChatGPT and Gemini.
What are agent profiles?
Agent Profiles arrive in customer accounts next month, which means November 2026, according to TechCrunch. Each agent gets its own profile inside the customer’s account, and its purchases show up separately from the customer’s own. The customer can require approval for every transaction or set a spending limit inside which the agent can buy. Walmart compares it to adding an authorized user to a credit card.
A profile is created the first time an agent shops through the gateway, the customer can delete it at any time, and a Walmart+ membership is not required.
What rules do the agents have to follow?
TechCrunch reports that Walmart’s return process applies even when an agent does not act the way the shopper intended. Agents cannot take actions beyond the shopper’s intent, cannot access payment information, and can see only the information needed for a task. Agents that do not comply will be blocked from the site.
What is Amazon doing?
Amazon has begun blocking AI agents from making purchases on behalf of shoppers, per TechCrunch. The article ties this to a September 2026 report about Meta’s agent being blocked from Amazon.com, and it notes that various travel and booking sites have locked agents out entirely.
Two of the biggest retail platforms in the US took opposite positions on the same question. That suggests the way a buyer reaches your product could become more fragmented over the coming months.
What does it change for a small seller?
Nothing confirmed so far. The TechCrunch article does not discuss third-party sellers, marketplace listings or seller-specific policies, and the other reports we checked do not either. Any claim like “your product will show up in AI-driven purchases” would be a guess.
In our view, the practical reasoning goes like this. An agent shopping for someone cannot look at a photo the way a person does. It relies on a clear title, filled-in attributes (size, color, material, voltage, compatibility), and correct price and availability. Incomplete product data already hurts you with human shoppers, and it is likely to hurt with agents too. That is our inference, not something Walmart or Amazon has said.
What can you do now at no cost?
- Rewrite titles. Lead with what the product is, then brand and model, without repeating words.
- Fill in every attribute the marketplace offers, including optional ones.
- Keep stock and price current. Listings with wrong inventory lead to cancellations that count against your account health.
- Write descriptions with checkable facts: dimensions, what is in the box, warranty length.
- Know your costs on the platform where you sell. If Walmart is on your list, our guide to Walmart Marketplace fees and requirements covers what a new seller pays and needs. For Amazon, see Amazon seller fees.
Who should watch this closely?
Sellers already on Walmart Marketplace or planning to join it. Sellers who only use Etsy, eBay or another platform have no new action because of this announcement. For them it is context about where retail is heading.
What is still unknown?
- Whether Agent Gateway brings rules or costs for third-party sellers on Walmart’s marketplace.
- Which agents beyond those already named are approved, and how Walmart decides.
- Whether Amazon will keep the block or build its own access for agents.
- How many shoppers will actually use agents to buy. None of the sources we checked give usage numbers.
It is worth checking Walmart’s own announcement once the company publishes more detail, especially on what changes for people who list products there.
