MCP Server — kairosastro-sketch/mcp-epheme

NASA-validated computed planetary positions for your AI — 19 astrology tools, never hallucinated.

Local serverstdioTypeScript

What is the MCP Server?

NASA-validated computed planetary positions for your AI — 19 astrology tools, never hallucinated.

The short version

Fully quit Claude Desktop (system tray) and relaunch it. Then ask: "What's the moon phase today?" — Claude calls the server and answers from genuinely computed positions.

Powered by the astrology engine of Llmastro. Learn more about the precision and architecture: https://llmastro.com/notre-moteur.

What it needs from you

  • Node.js ≥ 20. - For maximum precision (swisseph): a C++ build chain (python3, make, a compiler) on the machine. Otherwise, automatic fallback to astracore, with no configuration.

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

How to install the MCP Server

{
  "mcpServers": {
    "llmastro": {
      "command": "npx",
      "args": ["-y", "@cosmosos/mcp-ephemeris"]
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

  • Node.js ≥ 20. - For maximum precision (swisseph): a C++ build chain (python3, make, a compiler) on the machine. Otherwise, automatic fallback to astracore, with no configuration.

Frequently asked questions

NASA-validated computed planetary positions for your AI — 19 astrology tools, never hallucinated. Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.