gnomon MCP Server: Install & Setup

Install gnomon in Claude Code

Claude Code

claude mcp add gnomon -- uvx gnomon-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "gnomon": {
      "command": "uvx",
      "args": [
        "gnomon-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the gnomon MCP server do?

Deterministic date, math and unit tools: time snapshots, calendar math with natural-language parsing, expression evaluation and Pint-based unit conversion.

Is the gnomon 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 gnomon run locally or remotely?

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

How do I add gnomon to Claude Code?

Run: claude mcp add gnomon -- uvx gnomon-mcp

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