Amazon loses court ban on Perplexity's AI shopping tools

The U.S. Court of Appeals for the Ninth Circuit, based in San Francisco, vacated a temporary ban blocking Perplexity AI's shopping agent from operating on Amazon on August 4, 2026, delivering the first major appellate ruling on AI agent access to e-commerce platforms Reuters.

Amazon had sought to keep Perplexity's "agentic" shopping tools off its platform, but the three-judge panel rejected the online retailer's legal theory. The court said Amazon was unlikely to succeed on its claim under the federal Computer Fraud and Abuse Act, the statute Amazon invoked to block the agent.

The Access Question

The appellate panel's reasoning hinged on a critical distinction: it was users, not Perplexity itself, who were accessing Amazon's platform with the help of the AI agent Reuters. That framing made it harder for Amazon to argue the agent was committing unauthorized access under federal hacking law.

The ruling does not resolve the underlying case on the merits. The preliminary injunction—a temporary measure issued earlier in 2026—has been lifted, allowing Perplexity's shopping agent to continue operating on Amazon while litigation proceeds. No damages, fines, or monetary penalties were reported in the available court filings or press coverage.

Implications for AI Agent Commerce

The decision marks one of the first appellate tests of whether platforms can use computer fraud statutes to block AI agents from their services. The Ninth Circuit's reasoning—that the user, not the agent, is the party performing the access—may set a precedent for other agent-versus-platform disputes across e-commerce and SaaS industries.

Neither Amazon nor Perplexity released official quoted statements on the ruling in immediate reporting. The case remains pending in district court, where Amazon may pursue its claims on other legal theories or seek damages at trial.

The outcome represents a concrete win for agent adoption in commerce: Perplexity's shopping tools can now operate openly on one of the world's largest retail platforms, subject to ongoing litigation.