The Space & Satellite industry on apis.io has 408 member providers holding 1,742 APIs between them. I counted the rows on the page, and here the totals match the header. The shape of the industry is less flattering than the numbers. 232 of the 408 members have no API at all, and 207 score minimal. Membership is computed from tags, and that pulls in a lot of aviation, weather and travel. Among the twelve providers that score exemplar or strong, the companies that put things into orbit are hard to find.
Who actually leads
The top of the ranking is Hubble Network (70.5), whose satellites reach standard Bluetooth chips, followed by Dynamic Feed (69.6), CycleCalcs (67.1) and Epsilon3 (60.3). After them come FlightAware, Aviation Edge, Travel Risk API and Tomorrow.io, all scoring between 56.3 and 57.1. Those are good APIs, but they are about aircraft, weather and travel. The one strong-band member that runs space infrastructure is Amazon Ground Station at 57.2.
| Segment | Providers (Kin Score, APIs) |
|---|---|
| Ground segment and space ops | Amazon Ground Station 57.2 (12), Epsilon3 60.3 (3), Kayhan Space 43.8 (20), Space-Track 35.0 (7) |
| Earth observation | Umbra 45.3 (15), Capella Space 31.9 (9), Planet Labs 31.5 (18), Sentinel Hub 34.2 (26) |
| Connectivity | Hubble Network 70.5 (7), Starlink 43.3 (16), Inmarsat 13.8 (7) |
| Public data | NASA 32.4 (37), ESA 23.8 (18), TheSpaceDevs LL2 28.3 (36) |
| Launch | Blue Origin 20.5 (4), Relativity Space 14.0 (3), Rocket Lab 12.1 (0), Arianespace 9.6 (0), Firefly 5.8 (0) |
Three patterns
Earth observation is where the space APIs are. Umbra, Capella, Planet, Sentinel Hub, Airbus OneAtlas (49 APIs), Pixxel and UP42 all sell imagery or tasking through an API, because the data is the product. They score in the thin-to-developing range. That is not because the APIs are missing. It is because contract governance and machine-readable access lag well behind the documentation.
Launch sells to procurement, not developers. Rocket Lab, Arianespace, Stoke, Isar and Firefly list zero APIs. Blue Origin and Relativity have a handful each. Launch is bought through a contract and a program office, so this is the honest result, not a gap waiting for us to fill.
The public sector and the community carry the data. NASA (37 APIs), ESA (18) and Space-Track hold the canonical orbital and science data. Launch schedules and space news come from community projects: TheSpaceDevs LL2 (36 APIs), Spaceflight News, Open Notify. None of these is agent-ready. For an agent asking “what launched this week,” the best sources are volunteer-run.
Where to start
If you want to task a satellite, start with Umbra or Capella Space. For orbital data, start with Space-Track. For ground contacts, use Amazon Ground Station. For launch data, use TheSpaceDevs LL2.
Takeaway
The tag-based membership makes the industry look bigger and stronger at the top than the space business really is. That is a defect in how we build the list, not a fault of the providers. What would move the industry is the imagery providers publishing complete, callable OpenAPI contracts with their tasking and order flows, since they are the segment that already sells through an API. On our side, aviation and weather providers should rank under Aerospace and Weather, not ahead of the satellite operators.
Explore the full list at apis.io/industries/space/.