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Amazon blocks Meta's Muse from checkout to defend $68bn in ad revenue
Shopify says it will enable Muse checkout with Shop Pay across every store it hosts. Its shares closed Monday more than 7% higher. Amazon shows the same agent a conditions-of-use popup at the cart.
The Investor · Invest desk
What happened
- Amazon began showing a popup on Sunday evening to anyone trying to complete a purchase through Meta's Muse, saying continued access by an unauthorized AI agent violates Amazon's conditions of use.
- Amazon says Meta never told it Muse would reach the marketplace, has asked Meta to remove Amazon from the agent's experience, and declined to say whether it will take legal action.
- Meta introduced Muse this month as an agent that sends emails, books travel, fills out forms and buys, priced from a no-cost tier to subscriptions at $20 and $100 per month.
- Amazon had already taken legal action against Perplexity over its Comet browser and targeted shopping agents built by Google and OpenAI, GeekWire reported.
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Why it matters
- cost Amazon is giving up the orders Muse would have placed to keep the page views its sponsored listings are sold against. The sellers on its marketplace absorb those forgone sales without having chosen the trade.
- contradiction The two companies' descriptions of how Muse handles customer credentials cannot both be accurate. Which one holds decides whether Amazon is enforcing account security or protecting advertising revenue.
- constraint Lutke's commitment covers all Shopify stores, so Muse checkout arrives as a platform default for merchants there. Neither company has described a store-level opt-out.
- precedent Amazon's test is that agents operate openly and respect service-provider decisions. That points toward permissioned or licensed agent access on the model it cites, where the intermediary has an agreement with the seller before it transacts.
Amazon's advertising revenue ran past $68 billion last year. Yahoo Finance ties that figure to shoppers scrolling its pages and encountering sponsored listings [9]. MarketWatch puts advertising at about 10% of Amazon's revenue [8], which works out to roughly $680 billion of revenue overall [10]. An agent sent to the cart on a user's behalf places the order and does the buying without the browsing. Pivotal Research's Jeff Wlodarczak wrote that the move "is one of the first clear signs that autonomous AI agents have the potential to significantly disrupt shopping-related advertising" [13].
Shopify bills the transaction. "We are excited to announce we are partnering deeply with Muse to enable agentic checkout with Shop Pay on all Shopify stores, offering people an easy and delightful way to shop and check out with Muse," chief executive Tobi Lutke wrote on X [11]. Meta's chief AI officer, Alexandr Wang, replied that the company wants "to give our musers access to a wide range of stores to find the absolute perfect products" [12]. Bhavin Shah of Deutsche Bank wrote in an investor note: "We believe the partnership helps refute the recent bear thesis that AI agents and personal shoppers could disintermediate Shopify and its large payments business" [15].
The dispute runs between two companies that already sell to each other. Amazon products have been purchasable inside Facebook and Instagram since 2023 [22], and Meta signed a multibillion-dollar deal in April to run agentic AI workloads on Amazon's cloud, according to GeekWire [23]. Amazon said: "Agentic third-party applications such as Muse have the same obligations, and we've requested that Meta remove Amazon from the experience" [6]. Meta did not immediately respond to MarketWatch's request for comment [28].
Amazon's stated objection is about identification and credentials. The company says Muse conceals its identity as it navigates the site and appears to collect and retain customer credentials, potentially reaching account pages and order history without Amazon's knowledge or consent [16]. Meta said when it introduced the agent that Muse "has no visibility into people's passwords or payment methods" and that credentials a user shares "go into secure storage, so Muse can use them without seeing them" [17]. Muse runs on a dedicated virtual machine in Meta's cloud [19] and uses Link by Stripe to generate single-use card numbers, so the number presented at checkout is not the user's own [20].
PYMNTS Intelligence found that roughly 132 million people have made a retail purchase with AI assistance and that 22% now begin online retail research in an AI tool [27]. Meta charges Muse users a subscription [21], so the shopping product does not have to be paid for with ad impressions.
I think Amazon holds this line for now, because the popup is cheap to run and aimed at a small share of order flow today. The counter-thesis is Wlodarczak's: "once users adopt a capable personal agent across email, calendar, research and shopping, switching costs rise and we believe the personal agent will become the default interface" [14]. If that is where this goes, the orders Amazon turns away get placed on Shopify stores instead. Two developments would show me wrong. Meta could comply and take Amazon out of the agent's scope, ending the fight without a court. Or Amazon could sell agent access on the terms it named, the way it says food delivery apps and online travel agencies operate with restaurants and airlines [7].
What to watch
- Whether Meta pulls Amazon out of Muse's scope, or Amazon escalates from a popup to court.
- Whether Amazon opens a licensed agent channel with fees and data terms it sets itself.
- Whether Shopify's next results separate the orders that arrived through Muse from the rest.