Meta’s Muse AI agent has been blocked from making purchases on Amazon’s e-commerce platform, according to a report by GeekWire. Users of Muse began receiving a pop-up message on Sunday that stated, “continued access by an unauthorized AI agent violates Amazon’s Conditions of Use, to which our customers have agreed.” Amazon has raised concerns about Muse failing to identify itself when browsing the site and potentially capturing customer login details or payment information. An unnamed Amazon spokesperson told GeekWire that third-party apps that make purchases on behalf of customers should be transparent and respect the decisions of service providers like Amazon. Meta had not informed Amazon that Muse would attempt to access its store. When Muse was launched earlier this month, Meta claimed the AI agent is not designed to see secure login details or card payment information. During testing, Muse was able to successfully purchase tank tops from Amazon while other items remained in the user’s basket. However, since its launch, some privacy concerns have emerged, with reports that Muse may be able to access user messages even when the necessary permissions are not enabled. This move by Amazon marks the latest effort to resist competition from other AI services that aim to facilitate shopping experiences outside of Amazon’s platform. Last year, Amazon sued Perplexity over its Comet shopping experience, which sought to integrate Amazon’s products into its AI search tool. A judge ruled in favor of Perplexity in August, allowing the service to continue. Additionally, Amazon has been reducing the amount of information included in confirmation emails since July, omitting specific item names and product images to prevent external AI services from gathering data. Meta has not yet commented on the situation. The dispute highlights growing tensions between major tech companies over how AI agents interact with e-commerce platforms and the privacy concerns that arise from such interactions.