MCP ExplorerExplorer

Mcp Dice

@yamatonon a year ago
1 MIT
FreeCommunity
AI Systems
A MCP server enabling LLMs to roll dice

Overview

What is Mcp Dice

mcp-dice is a Model Context Protocol (MCP) server that allows Large Language Models (LLMs) to roll dice using standard dice notation, providing both individual rolls and their total sum.

Use cases

Use cases for mcp-dice include tabletop role-playing games (RPGs) for rolling character stats, board games for determining outcomes, and educational tools for teaching probability.

How to use

To use mcp-dice, install it via Smithery with the command npx @smithery/cli install mcp-dice --client claude. Then, you can run it using uvx mcp-dice and send a JSON object with a notation field to get the dice rolls.

Key features

Key features of mcp-dice include support for standard dice notation (e.g., 1d20, 3d6, 2d8+1), returning both individual rolls and their total sum, easy integration with Claude Desktop, and compatibility with MCP Inspector for debugging.

Where to use

mcp-dice can be used in various fields including gaming, simulations, and any application that requires random number generation through dice rolls.

Content

mcp-dice: A MCP Server for Rolling Dice

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A Model Context Protocol (MCP) server that enables Large Language Models (LLMs) to roll dice. It accepts standard dice notation (e.g., 1d20) and returns both individual rolls and their sum.

Features

  • Supports standard dice notation (e.g., 1d20, 3d6, 2d8+1)
  • Returns both individual rolls and the total sum
  • Easy integration with Claude Desktop
  • Compatible with MCP Inspector for debugging

Installation

Installing via Smithery

To install Dice Roller for Claude Desktop automatically via Smithery:

npx @smithery/cli install mcp-dice --client claude

Make uv available: https://docs.astral.sh/uv/getting-started/installation/

Usage

Basic Command Line Usage

# Using uvx
uvx mcp-dice

Input Format

The server accepts a JSON object with a notation field:

{
  "notation": "2d6+3"
}

Example responses:

{
  "rolls": [
    3,
    1
  ],
  "sum": 4,
  "modifier": 3,
  "total": 7,
  "notation": "2d6+3",
  "timestamp": "2024-12-03T16:36:38.926452"
}

Claude Desktop Configuration

Location

  • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
  • Windows: %APPDATA%/Claude/claude_desktop_config.json

Examples

macOS Configuration
{
  "mcpServers": {
    "dice": {
      "command": "uvx",
      "args": [
        "mcp-dice"
      ]
    }
  }
}
WSL Configuration
{
  "mcpServers": {
    "dice": {
      "command": "wsl",
      "args": [
        "-e",
        "zsh",
        "-lc",
        "uvx mcp-dice"
      ]
    }
  }
}

Note: Replace zsh with your login shell.

Development and Debugging

Installing Development Dependencies

# Clone the repository
git clone https://github.com/yourusername/mcp-dice
cd mcp-dice

# Install development dependencies
uv pip install -e ".[dev]"

Running Tests

uv run pytest

Using MCP Inspector

The MCP Inspector is a useful tool for debugging your MCP server. Install and run it using npm:

npx @modelcontextprotocol/inspector uvx mcp-dice

Claude Desktop Configuration for Development

macOS configuration (local dev)
{
  "mcpServers": {
    "dice": {
      "command": "uv",
      "args": [
        "run",
        "--directory",
        "path/to/mcp-dice-repo",
        "mcp-dice"
      ]
    }
  }
}

Note: Replace path/to/mcp-dice-repo with the path to the repository on your filesystem.

Windows (WSL) configuration (local dev)
{
  "mcpServers": {
    "dice": {
      "command": "wsl",
      "args": [
        "-e",
        "zsh",
        "-lc",
        "uv run --directory path/to/mcp-dice-repo mcp-dice"
      ]
    }
  }
}

Note: Replace zsh with your login shell. Also, replace path/to/mcp-dice-repo with the path to the repository on your WSL filesystem.

Tools

No tools

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