AI Agents Are Being Blocked by Major Websites, and a New Standard Aims to Fix That
Amazon blocked Meta’s Muse agent, while users report restrictions from Yelp, eBay, Zillow, airlines and others. eBay users say agent activity triggered account suspensions; Delta, United and Yelp cite policies limiting unauthorized or non-human traffic.
Personal AI agents are increasingly being blocked by major websites, leaving consumers unable to complete purchases, bookings, and other tasks the agents are designed to handle. The friction has intensified in late 2026, with user complaints mounting across social media and several high-profile companies confirming they are restricting agent access.
Amazon recently blocked Meta’s Muse AI agent from browsing or making purchases on its retail site. Users have also reported agents being blocked by Yelp, eBay, Zillow, Pizza Hut, Adidas, and multiple airlines. Some eBay users say their accounts were suspended due to agentic AI activity, and at least one user reported Google blocking the Instinct agent while it was managing their Gmail inbox.
The blocks stem from multiple sources. Some are deliberate: Delta said it is taking steps to protect customers from “unauthorized automated activity” and has no current integration enabling third-party agents to book flights. United’s Terms of Use prohibit automated tools without prior written permission. Yelp stated it does not permit non-human traffic unless the agent has a paid data licensing agreement. Other blocks appear unintentional — Walmart, which is an announced Muse partner, said consumer complaints about failed purchases were likely caused by human-verification prompts that interrupt the agent’s session, not deliberate policy.
Cloudflare, which provides bot-protection services to many websites, is also a factor. A September 15 change to its crawler defaults shifted some sites toward blocking AI agents on ad-supported pages, though Cloudflare said it had no specific data to share on how this is affecting personal agents.
To address the problem, Meta, Walmart, Stripe, Sierra, Genesys, Rocket, NiCE, and Decagon have begun developing an open standard for agent-to-agent communication focused on online commerce. The goal is to help websites distinguish legitimate consumer agents from malicious bots.
“Turning away a personal agent means turning away the customer behind it,” Meta said in its announcement. “There is a path that is good for users and good for businesses. It starts with clear norms, gives businesses more predictable control, and evolves toward a more efficient way for agents to work together.”
Until such a standard is in place, consumers using AI agents for everyday tasks may continue to encounter unexplained failures, with little clarity on whether a block is intentional or a technical oversight.