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Amazon blocks Meta’s shopping agent while opening its seller tools to Claude

In one week Amazon shut out Meta’s Muse from its store and invited Anthropic’s Claude into Seller Central, showing it wants to decide which AI agents get in.

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By Tech CEO Daily Staff, Newsroom

· 3 min read

A large e-commerce fulfillment warehouse with tall shelves of cardboard boxes and conveyor belts
AI-generated image for illustration. Not a photograph of the events described.

The news

Amazon began blocking Meta’s Muse AI assistant from shopping on Amazon.com over the weekend of September 20, according to GeekWire. Shoppers using Muse saw notices that access by an unauthorized AI agent violates Amazon’s Conditions of Use. Meta launched Muse on September 8.

Amazon says it never agreed to Muse accessing its store, that the agent does not identify itself as automated, and that it captures and stores customers’ Amazon login credentials. Meta has said Muse has no visibility into passwords or payment methods and that credentials go into secure storage. TechSpot, citing Forbes, reported that Meta declined Amazon’s request to exclude its store from Muse.

Two days later, on September 23 at its Accelerate seller conference, Amazon went the other way for merchants. It launched a plugin that lets third-party sellers run parts of their business — inventory, pricing, listings, sales analytics — from Anthropic’s Claude or Amazon’s own Quick assistant. The plugin is in beta for U.S. sellers; sellers pick which data it can reach and approve each action. Amazon said about 90% of sellers already use outside AI tools.

The legal footing for blocking agents is unsettled. Amazon won a preliminary injunction against Perplexity’s shopping agent in March, but the Ninth Circuit reversed it on August 4, GeekWire reported, and a rehearing request was denied September 10.

The numbers

Amazon ad revenue last year
More than $68 billion
Seller fees, Q2
$46.8 billion (per GeekWire)
Sellers using outside AI tools
About 90% (Amazon)

Why CEOs should care

The pattern is clear: Amazon will let AI agents in when they operate through its official interfaces and keep sellers inside its ecosystem, and it will block agents that sit between it and its shoppers. That matters because Amazon’s more than $68 billion advertising business depends on people browsing its pages. A third-party agent that buys on a customer’s behalf skips the sponsored listings.

For brands and retailers, the takeaway is that “agentic commerce” will not be a neutral open channel any time soon. Expect large platforms to negotiate access agent by agent. Sellers on Amazon get new automation options, but on Amazon’s rails. Companies building their own shopping agents should plan for platform permission, not just technical capability.

What's next

Watch whether Meta changes how Muse identifies itself or challenges the block, and whether the Perplexity ruling encourages other agent makers to test Amazon’s restrictions.

Sources

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Tech CEO Daily Staff

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