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mcp/harbor
Verified official

MahjongHandbook — American NMJL, MCR & Riichi Mahjong Scoring Rules Engine MCP

v1.0.2 changelog · 1

com.mahjonghandbook/mcp

Query American NMJL, Chinese Official MCR (81 Fan) & Japanese Riichi Mahjong scoring rules.

transport:streamable-http tools:1
View source Website

Target client

run in your project directory 

claude mcp add --transport http mcp https://mahjonghandbook.com/api/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

lookup_mahjong_scoring_rules Read-only

lookup mahjong scoring rules

All 1 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.