Amazon Blocks Meta's Muse Agent From Shopping on Amazon.com

Amazon has blocked Meta's Muse personal AI agent from shopping on Amazon.com on customers' behalf, and the popup that started appearing Sunday night makes the framing explicit. "Continued access by an unauthorized AI agent violates Amazon's Conditions of Use, to which our customers have agreed," reads the message, per GeekWire's Todd Bishop.

Amazon says it tried and failed to get Meta to voluntarily leave Amazon.com out of the Muse experience before taking action. Its concerns cluster around three things: Meta never told Amazon Muse would browse the store, the agent doesn't identify itself when it does, and it appears to capture and store customer login credentials. "Third-party applications that offer to make purchases on behalf of customers from other businesses should operate openly and respect service provider decisions," an Amazon spokesperson said.

Meta pushes back on the credentials point. The company says 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."

The two firms are otherwise deep partners. Amazon products have been purchasable inside Facebook and Instagram since 2023, and Meta signed a multibillion-dollar AWS deal in April to run agentic AI work. Meta launched Muse on Sept. 8 as a task-executing personal agent that plugs into email, calendar, payments, dining and shopping across iOS, Android, WhatsApp and muse.ai, and we covered Muse's Mac release two days ago.

Amazon has been in this fight before. Rather than pursuing the hacking-style claims that failed against Perplexity's Comet browser in August, it is leaning on terms-of-service instead.