If you're building an AI product in 2026, you've probably already typed whatever.ai into a registrar's search box. You're not alone — .ai has gone from a sleepy Caribbean ccTLD to the default namespace for an entire industry, and the registrars selling it have responded with everything from wholesale at-cost pricing to full agent-callable APIs. This guide compares five of them on the three things that actually matter for an AI startup: what the domain costs, what the registry's own rules require, and whether the registrar can be driven by an AI agent instead of a human filling out a checkout form.
This is a companion discussion topic for the original entry at https://namefi.io/r/en/blog/ai-tld-registrars