Websites are increasingly blocking AI agents developed by companies like OpenAI, Meta, and Google, citing security concerns and competitive interests. Services such as Yelp require AI agents to pay for data licensing, while Delta Air Lines and JPMorgan Chase restrict access to user accounts. Amazon previously sued Perplexity for deploying AI agents to shop on its platform, arguing the practice undermined ad revenue, though an appeals court later overturned a temporary ban. Meta’s Muse, xAI’s Grok, and OpenAI’s Dots have faced similar restrictions on major sites, including Amazon. Cloudflare amplified these efforts by introducing a 2025 tool to block AI crawlers that scrape content for search or training, exacerbating friction with anti-bot systems. Legal disputes and technical safeguards are limiting agents’ utility, as noted by EquiStamp CEO Chris Canal, who warns that companies actively resisting AI agents reduce their perceived value. In response, Meta partnered with retailers like Walmart and Shopify to enable agent-based shopping, while Amazon and others prioritize human-user interactions. These barriers highlight tensions between AI innovation and web infrastructure, with potential consequences for user experience as sites deploy more CAPTCHA-like verification steps to distinguish bots from humans.