Content
# Muumuu Domain MCP Server
[日本語版 README はこちら / Japanese README](./README.ja.md)
The official remote [Model Context Protocol (MCP)](https://modelcontextprotocol.io/) server for [Muumuu Domain](https://muumuu-domain.com/) — a domain registration service operated by [GMO Pepabo, Inc.](https://pepabo.com/)
Search and register domains, manage owned domains and contracts, and configure DNS records — all through natural language conversations with AI assistants.
> **First remote MCP server in the Japanese domain registrar industry.**
## Endpoint
```
https://mcp.muumuu-domain.com/mcp
```
Transport: Streamable HTTP. Authentication: OAuth 2.1 (handled automatically by supported clients).
## Features
- **Domain search & registration** — check availability, view pricing, register domains
- **Domain management** — list and inspect owned domains
- **DNS management** — list, create, update, and delete DNS records
- **Contract management** — review contract list (renewal dates, auto-renewal status) and details
Pricing: **MCP server access is free.** Standard Muumuu Domain registration fees apply when purchasing domains.
## Quick Start
Choose your client below.
### Claude Code
```bash
claude mcp add --transport http muumuu https://mcp.muumuu-domain.com/mcp
```
Then run `/mcp` inside Claude Code and select **Authenticate** to complete the OAuth flow.
[Claude Code MCP docs](https://docs.anthropic.com/en/docs/claude-code/mcp)
### Claude Desktop / claude.ai
Settings → Connectors → **Add custom connector** → enter:
```
https://mcp.muumuu-domain.com/mcp
```
OAuth is handled automatically by Claude.
### Cursor
Add to `.cursor/mcp.json`:
```json
{
"mcpServers": {
"muumuu": {
"url": "https://mcp.muumuu-domain.com/mcp"
}
}
}
```
### OpenAI Codex CLI
```bash
codex mcp add muumuu --url https://mcp.muumuu-domain.com/mcp
```
### Gemini CLI
See the [Gemini CLI MCP server documentation](https://github.com/google-gemini/gemini-cli/blob/main/docs/tools/mcp-server.md) for adding remote MCP servers.
### Local stdio bridge (advanced)
For clients that only support stdio transport, use [`mcp-remote`](https://www.npmjs.com/package/mcp-remote):
```json
{
"mcpServers": {
"muumuu": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.muumuu-domain.com/mcp"]
}
}
}
```
### Introspection-only mode (registry tooling)
For MCP registries (e.g. Glama) that index the tool surface in a headless build environment where an interactive OAuth flow cannot complete, the CLI also supports a stdio-only introspection mode:
```bash
node bin/muumuu-mcp.js --introspect-only
```
In this mode the CLI serves the static [tool manifest](./lib/tools.js) over stdio. It does **not** make any network calls, does not read the `Authorization` header, and `tools/call` always returns `isError: true`. Do **not** use this mode for real traffic.
## Documentation
- [Official MCP server guide (Japanese)](https://support.muumuu-domain.com/hc/ja/articles/50278568742803)
- [Service announcement (Japanese)](https://muumuu-domain.com/muumuu-domain-mcp/)
- [Press release (Japanese)](https://pepabo.com/news/information/202603311100/)
## Requirements
- A [Muumuu Domain](https://muumuu-domain.com/) account
- An MCP-compatible client (Claude Desktop, Claude Code, Cursor, OpenAI Codex CLI, Gemini CLI, etc.)
## Support
- For service-related inquiries: [Muumuu Domain Help Center](https://support.muumuu-domain.com/)
- For issues with this repository: please open a [GitHub Issue](https://github.com/pepabo/muumuu-domain-mcp/issues)
## License
[MIT](./LICENSE)
