Amazon blocked Meta's Muse agent. Shopify let it check out

On Sunday night, Amazon started blocking Meta's Muse agent from shopping Amazon.com for its users. On Monday, Shopify CEO Tobi Lütke went the other way. @tobi posted that Shopify is "partnering deeply with Muse to enable agentic checkout with Shop Pay on all Shopify stores." That evening Mark Zuckerberg quoted him from @finkd: "Shoppers find more. Shops sell more." He added that more deals like it are coming.

Within a day, two of the biggest places to buy things online gave opposite answers to the same question: should an AI agent be allowed to shop for a person?

What Amazon objected to

Amazon's statement, as GeekWire reported it, says continued access by "an unauthorized AI agent" violates the Conditions of Use its customers agreed to. Bloomberg reports that Amazon asked Meta to remove the bot first and Meta declined. Amazon's complaints are specific. Meta never said Muse would access the store, the agent doesn't identify itself while it browses, and it appears to capture and store customer credentials. Meta says Muse "has no visibility into people's passwords or payment methods" and that shared logins go into secure storage.

Muse users now get pop-ups telling them they're violating Amazon's terms. Amazon has done this before, blocking shopping agents from Perplexity, Google, and OpenAI. Its own Buy for Me agent identifies itself and lets brands opt out, so Amazon can hold that up as the way it wants agents to behave.

Reporter Jason Del Rey, @DelRey, noticed the timing. The same day, Amazon filed an amended complaint in its lawsuit against Perplexity over the Comet browser. He asked: "Coincidence or intentional timing?"

The argument on X

Most of the reaction on X was about who gets to own the customer.

Investor Sheel Mohnot, @pitdesi, wrote, "I hate it as a consumer but it is the right move for Amazon." His case: agents want to replace the storefront, and Amazon is big enough to refuse. He thinks the customer relationship matters even more than logistics. Jay Yarow, @jyarow, put it more bluntly, saying agents "are going to be blocked by the sites that would be most helpful" to use.

Economist Kevin Bryan, @Afinetheorem, gave the most careful take. Owning "the gate" is valuable, he wrote, but so is an agent that works for the shopper instead of the store, say one that compares prices across sellers. He called the market power question "very subtle."

My read

I think this split was always coming, and each company made the rational call for where it sits.

People open Amazon out of habit. Its search results, reviews, and ad slots are the business. An agent that shops Amazon without the customer ever seeing any of that turns Amazon into a warehouse with a checkout button, so saying no protects the part of the company that makes the most money.

Shopify merchants are in a different spot. Most of them don't get habit traffic, and a customer usually has to go looking for them. An agent that sends buyers their way is close to pure upside. Shopify also keeps the layer it cares about, because Shop Pay still handles the payment when the customer never sees the storefront.

I'd still give Amazon's security complaint a fair hearing, separate from its business motives. An agent that won't say what it is and signs in with a customer's saved password is a real risk. Any business should ask about that before letting agents in.

What this means for a business

Agents are turning into a sales channel, and most owners haven't decided how to handle them. For a Fox Valley service business, the calendar matters more than a shopping cart. When a customer tells an assistant to "find me a plumber who can come Thursday" or "book a cut for Saturday," can the agent read your hours, your prices, and your open slots? Can it book? If it can't, it will book someone it can.

Either way, decide on purpose. Opening up means putting clear pricing and online booking where software can read them. Staying closed is a fine answer if you know what it costs you. If you sell on Shopify, note that Lütke's post says "all Shopify stores." ContentGrip noted that Shopify hadn't yet published Muse-specific controls like the ones it offers for other AI channels.

At New Face Design, our free process audit maps how customers reach you now, including whether an AI assistant could book with you today.

Amazon and Shopify each picked a side within a day. Most small businesses haven't looked at the question yet.