SpaceNexus space data is answering right now. Last checked 15 min ago. It exposes 14 tools.
Read-only space industry data: launches, slips, funding, companies, space weather, Moon race, jobs.
Uptime history
26 days of history · worst day 82%
26 days agonow
100.0%
Uptime 24h
91 of 91 checks
14
Tools
read from the server
265 ms
Response time
average over 24h
open, no key
Access
streamable-http
What changed 1
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 7 October 2026. No other catalogue keeps this.
7 Oct
a tool description was rewritten
company_lookup
Nothing serious here today
Today is the operative word: we check SpaceNexus space data every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.
run in your terminal
claude mcp add spacenexus --transport http https://spacenexus.us/api/mcpSettings → Connectors → Add custom connector, then paste this address
https://spacenexus.us/api/mcp~/.codex/config.toml
[mcp_servers.spacenexus]
url = "https://spacenexus.us/api/mcp".cursor/mcp.json
{
"mcpServers": {
"spacenexus": {
"url": "https://spacenexus.us/api/mcp"
}
}
}.vscode/mcp.json
{
"servers": {
"spacenexus": {
"type": "http",
"url": "https://spacenexus.us/api/mcp"
}
}
}Available tools 14
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
launch
launch_ledger_record
Needs a SpaceNexus API key (a free key is enough). The full Launch Ledger record: every launch date change our ledger holds since recording began, one row per launch per UTC observation day, with the observation fields (live or catch-up, the catch-up reason, Launch Library 2's last-updated time), both dates at their precision and its basis, the size and kind of the move, and whether it counts as a slip. Filter by launch, provider, rocket, observation, kind and day; page with offset. The same rows as the free launch-slips dataset.
launch_on_time_record
How often launches fly on time: the share of flown launches that lifted off within 1 day and within 7 days of the first firm date on record, with mean and median delay, grouped by provider, vehicle or launch site.
launch_slips
Recent launch date changes as the SpaceNexus slip ledger recorded them (old date, new date, size of the move, kind of move), with totals since recording began and the provider scorecard once the ledger is large enough. Each change carries observation: live (our sync saw it when it happened) or catch-up (our sync only caught up late, so observedAt is when we saw it, not when it changed). Caught-up changes are returned apart in caughtUpChanges and never counted in the summary figures.
space
space_jobs_count
How many open roles the SpaceNexus jobs board lists right now (mirrored daily from employers' careers pages), how many employers are hiring, how many roles are new this week or remote, and optionally one employer's open roles.
space_score_history
Needs a SpaceNexus API key whose owner has SpaceNexus Research (the Space Score history is a Research product). One company's daily Space Score readings for up to 365 days: score, rank, the change from the previous reading, large moves flagged, and why a reading moved where the stored inputs can say. The current score stays free in company_lookup.
space_weather_now
Current geomagnetic Kp and NOAA G-scale, solar wind speed, density and Bz, the NOAA 3-day flare outlook and flares in the last 14 days, with a plain-language read for satellite operators. NOAA SWPC and NASA DONKI data.
company
company_lookup
Public profile facts for a space company: what it does, sector, country, headquarters, founding year, public or private, ticker, funding and last round as shown on its profile (for a listed company the funding figure is the private rounds it raised before listing, and fundingBasis says which rule applies), and its Space Score when it is ranked.
dataset
dataset_links
Needs a SpaceNexus API key (a free key is enough). The bulk SpaceNexus datasets: for each one its CSV and JSON download links, what it holds, its columns, its licence statement, its DOI when minted and the page that shows it, plus the Promise Ledger CSV. The downloads themselves need no key.
funding
funding_round_history
Needs a SpaceNexus API key on the Professional or Research plan. The full published history of private funding rounds into space companies, not only the last 90 days: date, amount (null when undisclosed or stated only approximately, never estimated), series and round type, pre- and post-money valuation where the source names the basis, lead investor and every listed investor, how the round is evidenced and its source link. Filter by company, investor, stage, dates and amount; page with offset.
moon
moon_race_status
The US vs China Moon race tracker: milestones demonstrated on both 8-rung ladders (crewed landing and sustained presence), who leads each, the projection call with its date bands, official targets and the next uncrewed landing attempt.
next
next_launches
Upcoming orbital launches from the SpaceNexus manifest (the next 50 scheduled), filterable by provider, rocket, launch site and country. Each launch has its NET date and precision, status, the date changes our ledger recorded, and its page URL. realSlips and otherDateMoves count only changes our sync saw when they happened; caughtUpDateMoves counts changes it only caught up with late (made earlier, on a day we do not know), which are never counted as slips.
promise
promise_ledger_entries
Needs a SpaceNexus API key (a free key is enough). Entries from the SpaceNexus Promise Ledger: dated public commitments about spaceflight by agencies, companies and executives, each with the verbatim quote, who said it and when, the deadline as stated and normalised, the status shown today, the outcome and its source, and every later revision. Filter by party, status, claim type or words; page with offset.
recent
recent_funding_rounds
Closed private funding rounds into space companies in the last 90 days, newest first, with amount (null when undisclosed, never estimated), stage, investors, how the round is evidenced and its source link.
site
search_site
Search spacenexus.us: companies, rockets, launches, launch sites, guides, charts, Moon missions, funding rounds and analysis. Returns titles, one-line descriptions and the canonical URL of each page.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://spacenexus.us/api/mcp | streamable-http | answering | 263 ms | 15 min ago |
Alternatives to SpaceNexus space data
same job, measured the same wayCelestial Node
by christerso
Real-time space data — ISS tracking, rocket launches, space news, Mars weather, and more
RymdenKollen — Swedish Space & Astronomy
by jannegpriv
Swedish space & astronomy: ISS passes, aurora forecasts, space weather, rocket launches, moon.
livedot MCP
by livedot
Find someone in a live running or cycling race, clubs and coaches near you, and race-day weather.
Tume AI
by tume
Read-only energy market data: ISO prices, load, generation, regulatory dockets and weather.
Ireland MCP
by c-mongan
Read-only Irish public data for AI assistants: stats, weather, transport, law, property and maps.
MCP1 Weather Query
by wcnm8888
Read-only current weather lookup by place name using Open-Meteo.
open-signals
by civops-platform
Public hazard, water, weather and EPA data with source, age and licence on every reading.
D
Data Aggregator MCP
by vpatser1
Unified data server: stocks, crypto, news, weather, web scraping, FX rates in one MCP
SpaceNexus space data — questions
Answers built from our own checks of this server.
What can SpaceNexus space data do?
It exposes 14 tools, read directly from the server on our last check. Among them: company_lookup, dataset_links, funding_round_history, launch_ledger_record, launch_on_time_record, launch_slips and 8 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README.
How MCP servers expose tools in the first place →
What is SpaceNexus space data mostly used for?
Its tools cluster around launch and space. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is SpaceNexus space data working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 265 ms. The bar chart above shows every period we have measured.
How do I connect SpaceNexus space data?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does SpaceNexus space data need an API key?
No. SpaceNexus space data completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 14 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is SpaceNexus space data?
It answers our handshake in 265 ms on average, which is faster than 63% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.