Third-party AI agents can no longer reliably browse eBay listings, adding another practical limit to services that promise to shop or research products for users.
The Verge reproduced failures after a Meta Muse user reported that a daily watch digest stopped returning eBay links, prices and condition details. In some searches, Muse redirected users to sites mirroring eBay listings instead. eBay declined to confirm a specific recent technical change but said it restricts agent access in cases including unauthorized scraping and training.
eBay’s user agreement already prohibits “buy-for-me agents” and language-model bots that place orders without human review. Browsing had continued to work until recently. The company said it is discussing possible partnerships while protecting its marketplace, suggesting that approved integrations may be treated differently from independent agents.
Retailers have adopted sharply different policies. Amazon blocks external shopping agents, Target allows them inconsistently, and Shopify has opened a large catalog for agent purchases. Usage also remains limited: Uber reported only four third-party-agent rides in its third quarter and roughly 500 agent-placed Uber Eats orders during Halloween week. The bottleneck for agentic commerce is therefore access and trust as much as technical capability.