Rubyhash MCP Server

MCP server for RubyHash. Gives any MCP-capable agent (Claude Code, Claude Desktop, Cursor, and others) two deterministic Ruby tools:

Local serverstdioMIT

What is the Rubyhash MCP Server?

Rubyhash is an MCP project maintained in the builtbyproxy/rubyhash-mcp repository. The maintainer describes its purpose as “MCP server for RubyHash. Gives any MCP-capable agent (Claude Code, Claude Desktop, Cursor, and others) two deterministic Ruby tools”. Read the project documentation for the complete scope.

Installation

The documented npm package is rubyhash-mcp. The configuration below comes from the maintainer’s example; adapt its paths and account values to your environment.

Source

Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

ToolWhat it does
ruby_hash_diffCompare two Ruby hash literals, or paste raw failing Minitest/RSpec output, and get a structured report: changed values with before and after, added and…
ruby_to_jsonConvert a Ruby hash or array literal (hashrockets, symbol keys, shorthand syntax, nesting, nil/true/false) to clean JSON with alphabetically sorted keys.

How to install the Rubyhash MCP Server

{
  "mcpServers": {
    "rubyhash": {
      "command": "npx",
      "args": [
        "-y",
        "rubyhash-mcp"
      ]
    }
  }
}

From the project documentation. Replace placeholders and example paths before connecting.