@pipeworx/horizons-nasa

NASA JPL Horizons MCP — solar-system body ephemerides (planets, moons, asteroids, comets, spacecraft). Keyless.

Part of Pipeworx — an MCP gateway connecting AI agents to 1394+ live data sources.

Tools

• lookup(query) — resolve an object name → SPK id

• ephemeris(command, center?, start_time, stop_time, step_size?, table_type?) — generate ephemerides

• observers(command, center?, start_time, stop_time, step_size?) — observer (apparent position) table

• vectors(command, center?, start_time, stop_time, step_size?) — Cartesian state vectors

command accepts SPK id (e.g. "499" Mars), name "Mars", or designation. center defaults to "500@399" (geocentric).

Related MCP server: Swiss Ephemeris MCP Server

Data source

https://ssd.jpl.nasa.gov/api/horizons.api and /horizons_lookup.api.

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "horizons-nasa": {
      "url": "https://gateway.pipeworx.io/horizons-nasa/mcp"
    }
  }
}

Or connect to the full Pipeworx gateway for access to all 1394+ data sources:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://gateway.pipeworx.io/mcp"
    }
  }
}

Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English:

ask_pipeworx({ question: "your question about Horizons Nasa data" })

The gateway picks the right tool and fills the arguments automatically.

More

• Docs and guides

• pipeworx.io

License

MIT