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domain-mcp Wiki

domain-mcp is an open-source Model Context Protocol (MCP) server that checks whether domain names are available to register or already taken.

It uses RDAP first (structured JSON from registries) and falls back to WHOIS when a TLD has no RDAP endpoint.

Documentation in this wiki is generated from the docs/ folder in the repository. Prefer pull requests there over editing the wiki UI.

Quick links

Page	Description
Installation	Install from source, Docker, or run with uv
Configuration	MCP client configs (Claude, Cursor, Docker)
Tools	MCP tools, parameters, and response fields
Supported TLDs	How TLD coverage works (RDAP + WHOIS)
Architecture	How checks work under the hood
Docker	Images, tags, and release pipeline
FAQ	Common questions and caveats

Project

• Repository: https://github.com/danielgtmn/domain-mcp
• License: MIT
• Issues: https://github.com/danielgtmn/domain-mcp/issues

Disclaimer

“Available” means no registration record was found via RDAP/WHOIS. It is not a purchase guarantee. Premium, reserved, or policy-blocked names may still be unregistrable. Always confirm at a registrar before buying.