eBay appears to have shut the door on third-party AI agents

eBay appears to have blocked AI agents, including Meta’s Muse, from browsing on the platform — the latest speed bump in the AI agent race.

A reader tells The Verge that for several weeks he’s had his Muse agent browse and curate a daily digest of watches for sale on platforms like eBay, including a link to listings, price, shipping details, and relevant notes about condition or style. This weekend, though, Muse was unable to pull any links or details from eBay, with Muse saying it was blocked from the site. The Verge was able to re-create the experience using other search requests, and in some cases we found that Muse instead directed users to outside sites that mirrored eBay listings.