Cosine Astro MCP Server: Install & Setup

Install Cosine Astro in Claude Code

Claude Code

claude mcp add cosine-astro -- npx -y cosine-astro-mcp

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

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

Astrology: natal charts, transits, synastry, retrogrades, profections. Computed offline.

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 cosine-astro -- npx -y cosine-astro-mcp

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