The short answer: when a shopper’s AI agent fails on a store, the cause is one of two things. Either the merchant decided to refuse agents, or a bot defence built for scrapers refused one the merchant never meant to turn away. TechCrunch’s October 6, 2026 report, which quotes the companies involved, shows both cases at once, and shows that the shopper cannot tell which one they hit.

What the companies said

TechCrunch reported that users of personal agents such as Meta’s Muse are running into blocks at several sites. It sorted them into intentional and accidental ones:

  • Walmart (accidental). Walmart told TechCrunch the failures were not intentional and that it is partnered with Muse. The reported cause is a button the visitor must click to prove they are human. If an agent’s session is interrupted, “the check could fail, and the agent gets booted out.”
  • Amazon (intentional). TechCrunch notes Amazon began blocking Muse from its retail site. We covered that case in Amazon Blocks Muse, Shopify Makes Every Store Buyable.
  • Yelp (policy). Yelp said it does not permit non-human traffic unless the agent has paid for access through its data licensing program.
  • eBay (policy with a carve-out). eBay said it does not prohibit all third-party shopping agents from completing purchases. Its policies restrict unauthorized agents and actions such as automated scraping and model training.
  • Zillow (accidental, per the company). After publication Zillow said it allows agents acting for consumers, but its anti-bot measures against scraping can occasionally block certain agents.
  • Delta and United (policy). Delta said it has no integration that lets a third-party agent book on a customer’s behalf. United pointed to Terms of Use language that bars robots and automatic devices without written permission.

Adidas and Pizza Hut did not respond before publication.

The part merchants control

The pattern worth noticing is that Walmart and Zillow both say they want agent traffic and still block some of it. For a store that wants to be bought from, the question is whether your own defences match your intent.

TechCrunch also reports that some people suspect Cloudflare’s September 15 change to crawler defaults is disrupting Muse traffic. In its account, sites that previously blocked AI bots were shifted to block AI agents on pages with ads. Cloudflare told TechCrunch it had no specific data to share, so treat this as a suspicion, not a finding. Our own reading of Cloudflare’s notice is in Cloudflare’s September 15 AI Defaults.

What to check on your store

  • Test the path an agent takes, not just the home page. Product, cart and checkout pages each can sit behind different rules.
  • Look for human-verification prompts on product, cart or sign-in pages. An interactive “click to confirm you are human” step is the failure mode Walmart described.
  • Review your CDN or WAF bot settings for rules that block categories of AI traffic. If you set them to stop training crawlers, confirm they do not also stop agents acting for a buyer.
  • Write down your intent. Decide whether you welcome agents acting for customers, then make robots.txt, terms and bot rules say the same thing. See robots.txt for AI agents.
  • Watch for an identity standard. Meta, Walmart, Stripe and others are working on an open standard to separate agents acting for users from bad bots, per TechCrunch. We summarised the announcement in Personal Agent Protocol: what it means for your online store.

FAQ

Why does an AI shopping agent get blocked on a site that wants its business?

Because bot defences are built to stop scrapers and spam, not to recognise a shopper’s agent. Walmart told TechCrunch its failures came from a human-verification button that an agent’s interrupted session can fail, even though Walmart is partnered with the agent’s maker.

Can a shopper tell whether a store blocked their agent on purpose?

Not from the failure alone. TechCrunch notes the end user cannot tell whether a block is accidental on the website owner’s part, which leaves them frustrated with both the retailer and the agent provider.

Do Yelp, eBay and Delta all ban AI agents?

No, their positions differ. Yelp permits agents only with paid data-licensing access, eBay restricts unauthorized agents and actions such as scraping while not banning all shopping agents, and Delta said it has no integration for third-party agents to book flights.

Sources

A store that wants agents to buy has to confirm they can get in; AgentReady audits that transaction path, from access through checkout.