Delta, Yelp, Chase, and Schwab are blocking AI agents, and some sites are doing it quietly
Users of Meta's Muse, Grok, OpenAI's Dots, and Instinct report agents failing on Delta, Yelp (paid data licensing only), JPMorgan Chase, and Charles Schwab, while Cars.com and Amtrak appear to have stopped working without any announcement. Generic anti-bot and Cloudflare defenses catch agents too, so plan for human handoff when your agent hits a checkout or login wall.