About io.github.christerso/celestial-node
io.github.christerso/celestial-node is an MCP server in the Science category: real-time space data — ISS tracking, rocket launches, space news, Mars weather, and more.
Install
claude mcp add io-github-christerso-celestial-node -- npx -y celestialnode-mcpnpx -y celestialnode-mcpThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
Tools (18)
get_constellationsAll 88 IAU constellations
Parameters not published.
get_crew_in_spaceAstronauts/cosmonauts/taikonauts currently in orbit
Parameters not published.
get_hazardous_asteroidsPotentially hazardous asteroids with orbital data
Parameters not published.
get_iss_positionReal-time ISS position (lat, lon, altitude, velocity)
Parameters not published.
get_mars_missionsAll 18 Mars missions with instruments and discoveries
Parameters not published.
get_mars_roversMars rovers with instruments, discoveries, and status
Parameters not published.
get_mars_weatherMars surface weather (temperature, pressure, wind)
Parameters not published.
get_near_earth_objectsUpcoming asteroid close approaches
Parameters not published.
get_satellite_categoriesSatellite categories with counts
Parameters not published.
get_space_agenciesSpace agencies worldwide
Parameters not published.
Show all 18 tools
get_space_newsCurated space news from NASA, ESA, CNSA, JAXA, Roscosmos, ISRO
Parameters not published.
get_star_detailsFull astronomical data for a star by Gaia source ID
Parameters not published.
get_tiangong_positionReal-time Tiangong station position
Parameters not published.
get_upcoming_launchesUpcoming rocket launches worldwide
Parameters not published.
get_upcoming_reentriesPredicted satellite/rocket stage re-entries
Parameters not published.
search_encyclopediaSearch space encyclopedia (spacecraft, missions, engines)
Parameters not published.
search_satellitesSearch tracked satellites by name
Parameters not published.
search_starsSearch 1M+ stars from ESA Gaia catalog
Parameters not published.
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README
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
Register at celestialnode.com/register for higher rate limits.
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 |
Register for a free API key at celestialnode.com/register.
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
README copy captured when this server was indexed; it may lag the repository. The original is authoritative.