Amazon Blocks Meta's Muse Agent From Shopping on Its Marketplace

Meta's Muse AI assistant can no longer shop on Amazon. Starting Sunday night, users who tried to complete purchases through the agent were met with an error stating that continued access by an unauthorized AI agent violates Amazon's Conditions of Use, a block first spotted by GeekWire.

On the surface, the move looks like a turf war between two tech giants. Amazon operates its own family of foundation models through AWS Nova and runs Bedrock, one of the most widely used inference platforms on the internet. With no legal obligation to accommodate a competitor's shopping agent, Amazon has little incentive to open the door.

There are practical concerns as well. Agentic commerce puts the marketplace in an awkward position when things go wrong: if Muse places a bad order, Amazon is left handling both a frustrated customer and a frustrated vendor. Muse does post one of the lower hallucination rates among AI models, but that figure remains well above zero, and Amazon may prefer to wait several more release cycles before embracing agent-driven shopping.

The standoff is an early skirmish in a much larger question: who sets the rules when AI agents start acting on behalf of consumers across platforms they do not control? Merchants, platforms, and agent builders all have stakes in the answer, and none of them have agreed on one yet.

For Meta, the block is a reminder that distribution advantages inside its own apps do not automatically extend to other companies' ecosystems. For Amazon, it preserves control over the checkout flow at the cost of appearing closed to the fastest-growing category of AI software. Either way, Muse users who want the agent to handle their shopping will need to do it somewhere other than Amazon for now.