Moon Phase MCP Server: Install & Setup

Install Moon Phase in Claude Code

Claude Code

claude mcp add moon-phase -- npx -y moon-phase-mcp

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

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

Moon phase, illumination, and age calculated locally. No network and no key.

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

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

Run: claude mcp add moon-phase -- npx -y moon-phase-mcp

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