LocalFree

Rng MCP server

mrfentmen/rng-mcp

Roll dice, flip coins, and generate random values locally. No network and no key.

472 npm downloads / month
Source code

Install Rng in Claude Code

Claude Code
claude mcp add rng -- npx -y rng-mcp
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "rng": {
      "command": "npx",
      "args": [
        "-y",
        "rng-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the Rng MCP server do?

Roll dice, flip coins, and generate random values locally. No network and no key.

Is the Rng MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Rng run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Rng to Claude Code?

Run: claude mcp add rng -- npx -y rng-mcp

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