muumuu-domain-mcp

Muumuu Domain MCP Server is the official remote Model Context Protocol (MCP) server for Muumuu Domain (a domain registration service operated by GMO Pepabo, Inc.). It enables users to search for and register domains, manage owned domains and contracts, and configure DNS records through natural language conversation using MCP-compatible AI assistants. It is officially described as the first remote MCP server in Japan's domain registration industry.

Purpose This server is intended for users who need to manage domain-related matters conversationally through AI assistants, covering the workflow from domain lookup and purchase to DNS configuration and contract viewing.

Main Capabilities

1. Domain search and registration: Check domain availability, view prices, and register domains.
2. Domain management: List and view owned domains.
3. DNS management: List, create, update, and delete DNS records.
4. Contract management: View the contract list (including renewal dates and auto-renewal status) and contract details.

The server exposes a total of 14 tools. Tools marked as write change account state; tools marked as destructive cannot be undone, and clients should confirm with the user before calling them.

Technical Specifications and Usage Transport: Streamable HTTP. Authentication: OAuth 2.1, handled automatically by supported clients.

Client configuration (based on official materials):

• Claude Code: Run /mcp and select Authenticate to complete the OAuth flow. See the Claude Code MCP documentation.
• Claude Desktop / claude.ai: Go to Settings → Connectors → Add custom connector → enter the connection URL; OAuth is handled automatically by Claude.
• Cursor: Add to .cursor/mcp.json.
• OpenAI Codex CLI: Configure according to the official instructions.
• Gemini CLI: Refer to the Gemini CLI MCP server documentation to add a remote MCP server.
• Local stdio bridge (advanced): For clients that only support the stdio transport, mcp-remote can be used.
• Introspection-only mode(registry tool): Intended for MCP registries (such as Glama) that index the tool surface in headless build environments where an interactive OAuth flow cannot be completed, the CLI also supports a stdio-only introspection mode. In this mode, the CLI provides a static tool manifest over stdio, makes no network calls, does not read the Authorization header, and tools/call always returns isError: true. The official documentation explicitly warns: do not use this mode for real traffic.

Use Cases

• Query domain availability and prices and complete registration in natural language through AI assistants.
• View and manage the list and details of domains you own.
• Create, update, and delete DNS records.
• View the contract list, renewal dates, auto-renewal status, and contract details.

Prerequisites

• A Muumuu Domain account is required.
• An MCP-compatible client is required (Claude Desktop, Claude Code, Cursor, OpenAI Codex CLI, Gemini CLI, etc.).

Pricing MCP server access is free; Muumuu Domain standard registration fees apply when purchasing domains.

Limitations and Notes

• Tools marked as write change account state; tools marked as destructive cannot be undone, and clients should confirm with the user before calling them.
• Introspection-only mode does not support real traffic and is only intended for headless indexing scenarios for registry tools.
• Service-related inquiries should be directed to the Muumuu Domain help center; issues related to this repository should be reported via GitHub Issues.

Other Notes The official materials also list links such as the Muumuu Domain official MCP server guide (Japanese), service announcements (Japanese), press releases (Japanese), and personal access tokens, but specific details are not yet provided in the available materials.