SpaceNexus space data

us.spacenexusPublished by spacenexus.usOfficial publisherv1.1.0Updated Oct 30, 2026

Read-only space industry data: launches, slips, funding, companies, space weather, Moon race, jobs.

VerifiedStreamable HTTPWeb executableWeb Search & ScrapingFinanceData & Analytics

Overview

AI-generated overview

Read-only space industry data server: launches, date slips, funding, companies, space weather, Moon race and jobs, with some tools needing an API key.

What you can do
  • Look up upcoming launches and recent launch date changes, plus on-time performance by provider, vehicle or site
  • Read space company profiles, recent private funding rounds and full funding history
  • Check current space weather, the US-China Moon race tracker and open space industry job counts
  • Search spacenexus.us pages for companies, rockets, launches, sites, guides and analysis
  • Pull the full launch ledger and promise ledger records, and list bulk dataset download links
When to use it
Useful when you want an assistant to answer questions about spaceflight schedules, launch reliability, space company funding or space weather without scraping sites yourself. Most tools work without a key; the deeper ledger, dataset and history tools are for heavier research.
Requirements
Remote streamable HTTP endpoint at spacenexus.us; no local install. An optional Authorization header with a Bearer SpaceNexus API key unlocks the keyed tools; a free key covers some, while funding history needs a Professional or Research plan and Space Score history needs Research. Dataset downloads themselves need no key.
Before you install
The API key is sent in the Authorization header, so treat it as a secret. Several tools are gated by paid plan tiers, so expect limits or errors without the right plan. Data is read-only, but results are third-party figures (including funding amounts that may be null when undisclosed) and should be checked against the linked sources.

Installation

In SourceWeft

  1. Open SpaceNexus space data in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/us.spacenexus%2Fspacenexus/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "spacenexus-space-data": {
      "type": "http",
      "url": "https://spacenexus.us/api/mcp"
    }
  }
}

Tools

14

next_launches

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.

Parameterssitelimitrocketcountryproviderinclude_recent_outcomes

launch_slips

Launch slip ledger

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.

Parameterslimitrocketproviderreal_moves_only

launch_on_time_record

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.

Parametersnamelimitgroup_by

recent_funding_rounds

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.

Parametersdayslimitstagecompanymin_amount_usd

company_lookup

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.

Parameterslimitqueryrequired

space_weather_now

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.

Takes no parameters.

moon_race_status

Race to the Moon 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.

Takes no parameters.

space_jobs_count

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.

Parameterscompany

search_site

Search SpaceNexus

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.

Parameterslimitqueryrequired

launch_ledger_record

Launch Ledger full 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.

Parameterskindlimitsincelaunchoffsetrocketproviderobservation

promise_ledger_entries

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.

Parameterslimitpartyqueryoffsetstatusclaim_type

funding_round_history

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.

Parameterslimitsincestageuntiloffsetcompanyinvestormin_amount_usd

space_score_history

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.

Parametersdayscompanyrequired

Version history

1
  1. v1.1.0LatestSep 30, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.