Janken MCP Server

Example Use Cases

• 1

  Play a simple interactive rock-paper-scissors game with users and compute win/lose/draw results programmatically.

• 2

  Obtain random janken hands for simulation, testing, or stochastic decision-making.

• 3

  A lightweight local MCP tool to integrate simple game logic into Claude Desktop, NPX, or VS Code-based workflows.

Description

This MCP server provides a simple rock-paper-scissors (じゃんけん) game API for LLMs, exposing tools to play a round or obtain a random hand and a resource describing the rules. It includes two tools: 'play' (accepts a player's hand, returns the AI's random hand and the match result) and 'random' (returns a random hand). The README documents integration examples for Claude Desktop, NPX, and VS Code, plus build and development instructions, making it easy to run locally or embed in agent workflows. The project is distributed under the MIT license.