How do I install Astral?

Astral is a local plugin. Install it using npm package: astral-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

What credentials does Astral need?

Astral requires the following credentials or environment variables: ASTRAL_MCP_TRANSPORT, ASTRAL_MCP_HOST, ASTRAL_MCP_PORT, ASTRAL_MCP_ALLOWED_ORIGIN. You can find setup instructions on the server detail page.

What AI apps work with Astral?

Astral uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Astral MCP Server

by davidmosiah

Developer ToolsLow Risk10.0LocalNew

Free

Precision-audited astrology MCP: natal charts, transits, synastry, moon phases. No API key.

About

Precision-audited astrology MCP: natal charts, transits, synastry, moon phases. No API key.

Security Report

10.0

Low Risk10.0Low Risk

Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Package registry verified. Imported from the Official MCP Registry.

5 files analyzed · 1 issue found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

What You'll Need

Set these up before or after installing:

Transport to run. Defaults to stdio. Set to http to expose a streamable HTTP endpoint instead.Optional

Environment variable: ASTRAL_MCP_TRANSPORT

Host to bind when ASTRAL_MCP_TRANSPORT=http. Defaults to 127.0.0.1.Optional

Environment variable: ASTRAL_MCP_HOST

Port to bind when ASTRAL_MCP_TRANSPORT=http. Defaults to 3000.Optional

Environment variable: ASTRAL_MCP_PORT

Allowed CORS origin for the HTTP transport. Defaults to the bound host:port.Optional

Environment variable: ASTRAL_MCP_ALLOWED_ORIGIN

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-davidmosiah-astral-mcp": {
      "env": {
        "ASTRAL_MCP_HOST": "your-astral-mcp-host-here",
        "ASTRAL_MCP_PORT": "your-astral-mcp-port-here",
        "ASTRAL_MCP_TRANSPORT": "your-astral-mcp-transport-here",
        "ASTRAL_MCP_ALLOWED_ORIGIN": "your-astral-mcp-allowed-origin-here"
      },
      "args": [
        "-y",
        "astral-mcp"
      ],
      "command": "npx"
    }
  }
}