Register domains wherever you build: Cloudflare Registrar API now in beta

Cloudflare has launched its Registrar API in beta, allowing domains to be searched, checked, and registered programmatically. The API is designed for AI agents, editors, deployment pipelines, and other automated workflows, closing the gap between developing an idea and securing its domain. Its three-step process uses cached search results, authoritative availability checks, and streamlined registration with account defaults.

Built for Agents and Automation

• Supports domain registration directly from code editors, terminals, backend services, and deployment pipelines.
• Enables agents to:
  • Generate domain name ideas
  • Search candidate names
  • Confirm availability and pricing
  • Register a selected domain after user approval
• Registration responses can complete immediately or provide a status endpoint for polling.
• The API is available through Cloudflare’s existing API and MCP integration, so tools such as Cursor, Claude Code, and other MCP-compatible environments require no separate custom integration.

Search, Check, and Register

• Search: Finds candidate domains, optionally across extensions, and returns registrability, tier, currency, registration cost, and renewal cost.
• Check: Queries the registry directly for current availability and pricing.
• Register: Completes the purchase using a minimal request containing the domain name.

Cloudflare recommends checking availability immediately before registration because search results are cached and popular names can become unavailable within seconds.

Registration Defaults and Protection

• The only required registration field is the domain name.
• The account’s default registrant contact and payment method are used automatically when configured.
• Contact details can instead be supplied in the request.
• WHOIS privacy is enabled by default at no additional cost.
• Registrations include details such as active status, expiration date, auto-renewal, privacy, and domain lock state.
• Premium domains may be supported, but require explicit acknowledgement of their fees.

Initial Availability

• The beta initially supports a curated selection of popular top-level domains.
• Cloudflare directs users to the Registrar API documentation for the current supported TLD list.

The API makes domain acquisition a natural part of automated development workflows: search a name, verify its live price and availability, obtain approval, and register it in seconds without leaving the development environment.