US appeals court allows Perplexity's AI shopping agent back on Amazon
The 9th US Circuit Court of Appeals overturned a preliminary injunction that had blocked Perplexity from using its AI shopping agents on Amazon's platform The court ruled that users, not Perplexity, are the ones accessing Amazon through the agents, making a CFAA violation unlikely to hold This marks the first US federal appeals court ruling on the legality of AI agents accessing online platforms on behalf of users The underlying lawsuit remains unresolved, with Amazon stating it disagrees with t
Analysis
TL;DR
- The 9th US Circuit Court of Appeals overturned a preliminary injunction that had blocked Perplexity from using its AI shopping agents on Amazon's platform
- The court ruled that users, not Perplexity, are the ones accessing Amazon through the agents, making a CFAA violation unlikely to hold
- This marks the first US federal appeals court ruling on the legality of AI agents accessing online platforms on behalf of users
- The underlying lawsuit remains unresolved, with Amazon stating it disagrees with the decision and is evaluating next steps
- The case highlights the tension between platform control over access methods (APIs) and third-party AI agents acting as user proxies
Why It Matters
This ruling sets a critical legal precedent for the entire agentic AI industry, determining whether AI agents can lawfully interact with online platforms on behalf of users without violating computer fraud statutes. For AI practitioners and companies building autonomous agents, the decision clarifies that attribution of access matters legally—when users authorize agents to act, the access may be attributed to the users rather than the AI provider. The outcome will shape how agentic systems can operate across e-commerce, social media, and other platform ecosystems.
Technical Details
- Perplexity's AI shopping agent operates through its Comet browser, logging into customer accounts and placing orders autonomously on behalf of users with limited human oversight
- Amazon's legal claim centered on the Computer Fraud and Abuse Act (CFAA), arguing that Perplexity accessed password-protected accounts without Amazon's authorization
- The 9th Circuit's reasoning hinged on attribution: the court concluded the law prohibits unauthorized access by the actor, and since users themselves authorized the access through the agents, Perplexity was not the direct accessor
- Amazon contrasts Perplexity's approach with its own official tools like "Buy For Me" and "Rufus," which operate through established, transparent APIs
- The original injunction (issued by Judge Maxine Chesney in March) had also ordered Perplexity to delete copies of Amazon data, but this order is now void pending the unresolved underlying case
Industry Insight
- AI agent developers should anticipate increased legal scrutiny over access methods; building agents that operate through official APIs rather than user-authenticated browser automation may reduce legal exposure going forward
- Platform companies will likely respond by tightening terms of service and implementing anti-automation measures, potentially escalating a legal arms race between platforms and agentic AI startups
- Investors and founders should factor this litigation risk into agentic AI business models—the ruling is favorable but preliminary, and the broader case could still establish restrictive precedent
Disclaimer: The above content is generated by AI and is for reference only.