npm version MCP Registry License: MIT

Celestial Node MCP

An MCP server for real-time space data from Celestial Node.

Gives AI assistants access to 18 read-only tools covering ISS/Tiangong tracking, crew in space, rocket launches, space news, Mars missions, a 1M+ star catalog, near-Earth asteroids, satellites, and more.

About Celestial Node

Celestial Node is a comprehensive space data platform that aggregates real-time information from space agencies worldwide. It offers:

Space Station Tracking - Real-time positions of the ISS and Tiangong space station
Crew Information - Current astronauts, cosmonauts, and taikonauts in orbit
Rocket Launches - Upcoming launches from providers worldwide
Space News - Curated news from NASA, ESA, CNSA, JAXA, Roscosmos, and ISRO
Mars Missions - All 18 Mars missions with instruments and discoveries
Mars Weather - Surface conditions including temperature, pressure, and wind
Star Catalog - 1M+ stars from the ESA Gaia mission
Near-Earth Objects - Asteroid tracking and close approaches
Satellites - Search and track satellites with re-entry predictions
Space Encyclopedia - Comprehensive database of spacecraft, missions, and engines

Quick Start

Without API Key

Anonymous usage is limited to 25 requests per hour.

Claude Desktop

Add to ~/.config/claude/claude_desktop_config.json:

{
  "mcpServers": {
    "celestial-node": {
      "command": "npx",
      "args": ["-y", "celestialnode-mcp"]
    }
  }
}

Claude Code

claude mcp add celestial-node -- npx -y celestialnode-mcp

With API Key

Claude Desktop

{
  "mcpServers": {
    "celestial-node": {
      "command": "npx",
      "args": ["-y", "celestialnode-mcp"],
      "env": {
        "CELESTIAL_NODE_API_KEY": "your-api-key-here"
      }
    }
  }
}

Claude Code

claude mcp add celestial-node --env CELESTIAL_NODE_API_KEY=your-api-key-here -- npx -y celestialnode-mcp

Rate Limits

Tier	Limit	Authentication
Anonymous	25 requests/hour	None
Registered (free)	100 requests/day	API key
Paid	500 requests/day	API key

Tools

Tool	Description
`get_iss_position`	Real-time ISS position (lat, lon, altitude, velocity)
`get_tiangong_position`	Real-time Tiangong station position
`get_crew_in_space`	Astronauts/cosmonauts/taikonauts currently in orbit
`get_upcoming_launches`	Upcoming rocket launches worldwide
`get_space_news`	Curated space news from NASA, ESA, CNSA, JAXA, Roscosmos, ISRO
`get_mars_missions`	All 18 Mars missions with instruments and discoveries
`get_mars_rovers`	Mars rovers with instruments, discoveries, and status
`get_mars_weather`	Mars surface weather (temperature, pressure, wind)
`search_stars`	Search 1M+ stars from ESA Gaia catalog
`get_star_details`	Full astronomical data for a star by Gaia source ID
`get_constellations`	All 88 IAU constellations
`get_near_earth_objects`	Upcoming asteroid close approaches
`get_hazardous_asteroids`	Potentially hazardous asteroids with orbital data
`get_space_agencies`	Space agencies worldwide
`search_encyclopedia`	Search space encyclopedia (spacecraft, missions, engines)
`get_satellite_categories`	Satellite categories with counts
`search_satellites`	Search tracked satellites by name
`get_upcoming_reentries`	Predicted satellite/rocket stage re-entries

Data Sources

All data is served from celestialnode.com which aggregates from NASA, ESA, CNSA, JAXA, Roscosmos, ISRO, SpaceX, and other global space agencies. Data is updated in real-time by background workers.

Security

All 18 tools are read-only GET requests. No write operations, no user data access.

License

MIT