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Amazon Demands Perplexity Stop Comet From Buying on Its Marketplace

The confrontation spotlights unresolved rules for how AI agents should operate on e‑commerce platforms.

Overview

  • Perplexity disclosed a cease-and-desist letter from Amazon objecting to Comet’s ability to make purchases on users’ behalf on Amazon’s site.
  • Amazon said third-party applications that place orders for customers must identify themselves and respect a service provider’s decision on whether to participate, calling Comet’s experience degraded.
  • Perplexity called the move bullying, framed it as a threat to user choice, and said shopping credentials used by Comet remain stored locally rather than on its servers.
  • The clash comes as Amazon promotes its own shopping tools, including the Rufus assistant and a Buy For Me feature, and has recently limited external AI agents from crawling its site.
  • The companies have not reached an agreement, and outcomes could range from agent identification requirements to broader technical blocking or further legal action.