Real-time space data — ISS tracking, rocket launches, space news, Mars weather, and more
Real-time space data — ISS tracking, rocket launches, space news, Mars weather, and more
An MCP server for real-time space data from Celestial Node.
Celestial Node is a comprehensive space data platform that aggregates real-time information from space agencies worldwide. It offers:
Once Celestial is connected, these are the calls the assistant has available:
get_iss_position — Real-time ISS position (lat, lon, altitude, velocity)get_tiangong_position — Real-time Tiangong station positionget_crew_in_space — Astronauts/cosmonauts/taikonauts currently in orbitget_upcoming_launches — Upcoming rocket launches worldwideget_space_news — Curated space news from NASA, ESA, CNSA, JAXA, Roscosmos, ISROget_mars_missions — All 18 Mars missions with instruments and discoveriesget_mars_rovers — Mars rovers with instruments, discoveries, and statusget_mars_weather — Mars surface weather (temperature, pressure, wind)search_stars — Search 1M+ stars from ESA Gaia catalogget_star_details — Full astronomical data for a star by Gaia source IDget_constellations — All 88 IAU constellationsget_near_earth_objects — Upcoming asteroid close approachescelestialnode-mcp on npm is all you need. Most clients run it directly, so configuration is a few lines and a restart.
You will need one environment variable: CELESTIAL_NODE_API_KEY. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Celestial's toolset — get_iss_position, get_tiangong_position, get_crew_in_space and 11 more — is a fair guide to whether it matches your workflow. It is maintained by christerso; worth a glance at recent repository activity before you build anything load-bearing on it.
get_iss_position — Real-time ISS position (lat, lon, altitude, velocity)get_tiangong_position — Real-time Tiangong station positionget_crew_in_space — Astronauts/cosmonauts/taikonauts currently in orbitget_upcoming_launches — Upcoming rocket launches worldwideget_space_news — Curated space news from NASA, ESA, CNSA, JAXA, Roscosmos, ISROget_mars_missions — All 18 Mars missions with instruments and discoveriesget_mars_rovers — Mars rovers with instruments, discoveries, and statusget_mars_weather — Mars surface weather (temperature, pressure, wind)search_stars — Search 1M+ stars from ESA Gaia catalogget_star_details — Full astronomical data for a star by Gaia source IDget_constellations — All 88 IAU constellationsget_near_earth_objects — Upcoming asteroid close approachesget_hazardous_asteroids — Potentially hazardous asteroids with orbital dataget_space_agencies — Space agencies worldwideCompare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| 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 |
{
"mcpServers": {
"celestial-node": {
"command": "npx",
"args": ["-y", "celestialnode-mcp"]
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| CELESTIAL_NODE_API_KEY | Credential the server authenticates with. | Yes |
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