🔍 Read the full analysis: Amazon Says No To AI Shopping Agents; Walmart Says Come In on ThorstenMeyerAI.com
Get business pricing on tech for your team
- Business-only prices and quantity discounts
- Tax-exempt purchasing
- Multiple users, one account, clear invoices
TL;DR
Amazon has blocked Meta’s Muse from shopping on its site, while Walmart announced a gateway and agent profiles for approved shopping agents. The split highlights a dispute over access, customer data and who controls the purchase as AI agents begin handling more shopping research.
Amazon has blocked Meta’s Muse from accessing its shopping site, while Walmart is opening a dedicated gateway for approved AI shopping agents, setting up a dispute over how automated tools can browse and buy from retailers. The contrast matters to shoppers because an agent can compare prices only where it can access product information—and because retailer rules may shape how purchases, payments and customer data are handled.
Meta launched Muse on September 8 as an agent that can browse websites, fill out forms and act for a user. The service runs in a virtual computer in Meta’s cloud and uses Link by Stripe, which provides a one-time-use card for payments. On September 20, Amazon blocked Muse. Amazon said the agent had not identified itself and appeared to capture and store customer credentials; Meta’s launch post said Muse cannot see users’ passwords or payment methods. Those accounts differ, and the source material does not independently resolve the disagreement.
Walmart announced Agent Profiles and the Walmart Agent Gateway on October 21. The gateway is based on the Model Context Protocol and is intended to let approved agents search Walmart’s inventory and make purchases through a structured connection rather than by operating a normal browser. Agent Profiles are described as a way to set permissions, including spending limits. The announcement marks a different access policy from Amazon’s, though the source does not establish how widely the gateway is available or which agents can use it now.
Meta reported on its October 21 earnings call that more than 10 million people in the United States and Canada had set up Muse in roughly six weeks. Meta said shopping was its most common use and that the average purchase was more than $200. These are company-reported figures, not independently verified measures of completed agent purchases. Meta CEO Mark Zuckerberg said the company expects to earn “a small fee” from transactions, while Meta’s stated broader aim is to take “a percent of the value” Muse creates.
Agentic shopping
Three ways an AI agent buys for you
Every fight between shops and AI agents comes down to which of these three routes the agent uses, and whether the shop agreed to it.
The browser, like a human
The agent opens pages built for people, signs in with your login and clicks through checkout. Works almost anywhere, which is why shops object: they can't tell the agent from you.
Examples: Meta's Muse (from a virtual machine in Meta's cloud), Perplexity's Comet (from your own computer)
The shop's own agent door
Approved agents search and buy through a structured interface instead of clicking through pages. The shop sets the rules.
Examples: Walmart Agent Gateway (MCP, beta), Shopify MCP server and WebMCP checkout tools
Shared protocols
Common rules for who the agent is, what you allowed, and how the checkout and payment are confirmed.
Examples: Personal Agent Protocol (draft), Universal Commerce Protocol, Agentic Commerce Protocol
The protocols competing to be the standard
| Protocol | Backers | Covers | Status |
|---|---|---|---|
| Personal Agent Protocol (Poppy) | Sierra, Meta, Walmart, Shopify, Stripe + 35 design partners | Agent identity, customer permission, one session across site, API and company agent | Draft 0.1 (9 Oct 2026) |
| Universal Commerce Protocol (UCP) | Google, Shopify; site also lists Etsy, Wayfair, Target, Walmart, Amazon, Microsoft | Discovery, cart, checkout, orders; payment mandates via AP2 | Published |
| Agentic Commerce Protocol (ACP) | OpenAI, Stripe | Checkout between agent and merchant | Open source; ChatGPT's own checkout scaled back in March 2026 |
What a careful agent purchase looks like
- You give the task and a limit, for example a $50 cap.
- The agent identifies itself to the shop and gets only the access you approved.
- It prepares the cart and shows you an approval card.
- Payment goes through a token or one-time card, so the agent never sees your card.
- The shop’s normal returns apply if the agent got it wrong.
Sources: Meta (8 Sep 2026), Walmart (21 Oct 2026), TechCrunch on Shopify (28 Sep 2026), Sierra (9 Oct 2026), ucp.dev, agenticcommerce.dev, OpenAI (24 Mar 2026). Purchase steps: Walmart’s agent terms and Meta’s Muse description.
Powered by Thorsten Meyer AI
Retailers Set the Rules for AI Buyers
The split affects who controls the shopping journey and customer relationship. If an outside agent searches and buys on a shopper’s behalf, the retailer may have less direct contact with the customer and less control over how its products are presented. A retailer-operated gateway, by contrast, can define what information an agent can access and how it completes a transaction. Amazon has its own shopping assistant and has objected to outside agents; Walmart’s gateway is designed to admit approved ones under set permissions.
For consumers, access can affect price comparisons and convenience, but permission and payment settings matter too. An agent’s ability to browse a store does not by itself establish that it can complete a purchase, or that it will follow the shopper’s preferred return and cancellation rules. Spending caps and purchase approvals can limit risk, but the available information does not specify a common set of safeguards across platforms.
The change also has implications for publishers and affiliate businesses. Amazon’s Associates program generally credits qualifying purchases through tracked links. If an agent reads a review but completes a purchase through a retailer’s agent interface—or through the retailer’s own assistant—the publisher may not receive the same referral credit. The source material raises that possibility but does not quantify any losses.
Products Worth Considering
Sonos Era 100 Wireless Smart Speaker, Black
Amazon Kindle Paperwhite (12th Generation, 2024), 16 GB, 7-inch Display, Jade
Amazon Kindle Paperwhite Signature Edition (12th Generation, 2024), 32 GB, Metallic Black
As an affiliate, we earn on qualifying purchases.
From Browser Bots to Retail Gateways
The dispute is part of a fast-moving series of product announcements. After Muse launched in September, Meta said it had retail connections with Best Buy, Gap, Sephora, Walmart, Wayfair and Expedia. Shopify has also developed structured tools that let browser agents interact with checkout. These efforts reflect two broad approaches: agents can use websites as a person would, or retailers can provide a controlled technical route for approved agents.
Browser-based agents can work on sites built for human visitors, but retailers may have difficulty distinguishing them from shoppers. Structured gateways can identify an agent and limit what it is allowed to do, but require merchants and agent developers to support the connection. Several protocols are being developed for shopping and checkout, including the Personal Agent Protocol, the Universal Commerce Protocol and the Agentic Commerce Protocol. Their existence does not mean retailers or agents have adopted a single shared standard.
Early usage data also suggests that agents are more often researching than paying. HUMAN Security’s September data, as described in the source material, found 81% of agent requests went to product and search pages and 2.4% to checkout and payment. The figures describe requests in that data set and period; they do not establish how often consumers ultimately buy through agents.
““Continued access by an unauthorized AI agent violates Amazon’s Conditions of Use, to which our customers have agreed.””
— Amazon
Access, Safeguards and Adoption
It is not clear how many Muse users have completed purchases through the service, how its reported average purchase was calculated, or whether Meta’s usage figures represent active shoppers or people who simply set up the agent. Amazon’s claims about Muse’s behavior and Meta’s statements about its access to credentials remain in tension. Neither account, in the supplied material, is backed by an independent technical assessment.
Walmart has announced its gateway and agent profiles, but the material does not specify the full list of approved agents, the rollout schedule, the transaction fees, or exactly how spending limits and purchase approvals will work in practice. The security and reliability of these systems will depend on implementation, as well as the rules each retailer sets. It is also unclear whether shoppers will be able to move between retailer systems without repeatedly granting permissions or sharing information.
Finally, protocols are still developing, and their adoption remains uneven. The source describes one major checkout effort as having pulled back from its initial approach, a reminder that announcements do not guarantee sustained use. There is not yet evidence of one standard that lets agents shop across retailers under consistent rules.
Retailer Rollouts and Agent Access
The next test is whether Walmart’s gateway reaches shoppers and agent providers in a usable form, and whether its controls can make automated purchases clear and manageable. Retailers and agent companies are likely to keep negotiating access, identity checks and transaction terms as more shopping tools are introduced. For now, shoppers should check what an agent is authorized to do, whether purchases require approval, what payment method it uses and which retailer’s return policy applies.
Meta’s next updates and any further Amazon changes will help show whether outside agents can gain access to major retail platforms or remain limited to participating stores. No broader timetable for a resolution is established in the source material. The near-term outcome will depend on retailer adoption, consumer trust and workable safeguards, not just on the availability of agent technology.
Key Questions
Why did Amazon block Meta’s Muse?
Amazon said Muse was an unauthorized agent that did not identify itself and appeared to capture and store customer credentials. Meta said Muse could not see users’ passwords or payment methods. The competing claims have not been independently resolved in the source material.
How is Walmart’s approach different?
Walmart announced an Agent Gateway for approved agents to search inventory and transact through a structured connection, along with Agent Profiles intended to set permissions such as spending limits. Amazon has blocked Muse from its site and requires agents to identify themselves under its usage rules.
Can Meta’s Muse already buy products?
Muse is described as a shopping agent that can browse, fill out forms and act for users, with payments through Link by Stripe. Meta reported that shopping was its most common use, but the source does not provide an independently verified count of completed purchases or clarify the availability of checkout across retailers.
What should shoppers check before using a shopping agent?
Check which sites the agent can access, whether each purchase needs approval, what spending limit applies, which payment method is used and which retailer’s return policy governs the order. The source material does not establish that all agents provide the same protections.
Source: ThorstenMeyerAI.com
