Celestial Node

Name: Celestial Node
Author: christerso

by christersoversion 1.1.0i★ –iRuns on your computer

Registry nameio.github.christerso/celestial-node

Install

Overview

Description from the maker (original English)

Real-time space data — ISS tracking, rocket launches, space news, Mars weather, and more

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: CELESTIAL_NODE_API_KEY

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

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

Run this in your terminal

claude mcp add celestial-node --env CELESTIAL_NODE_API_KEY=your-value -- npx -y celestialnode-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

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

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "celestial-node": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "celestialnode-mcp"
      ],
      "env": {
        "CELESTIAL_NODE_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

CELESTIAL_NODE_API_KEY env
Optional API key for higher rate limits (100/day vs 25/hr). Get yours at https://celestialnode.com/register

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account christerso, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32403 servers in this category
Published to the registry more recently than 3% of the other 32403 servers in this category
Basic checks equal to or better than 100% of the other 32403 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Celestial Node safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.1.0) reached the registry 9 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, LickityClick

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

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

Celestial Node

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

LickityClick

README from the maker

Celestial Node MCP

About Celestial Node

Quick Start

Without API Key

With API Key

Rate Limits

Tools

Data Sources

Security

License