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Nebulum Mars Rovers API vs SWAPI

Same instrument, two spec sheets — measured, not claimed.

APINebulum Mars Rovers APINEW—SWAPINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublished100 req/window · 99 remaining · resets 1783512035
In directory since2026-07-052026-07-05
operationalpartialdownno data

Nebulum Mars Rovers API vs SWAPI: common questions

Which is more reliable, Nebulum Mars Rovers API or SWAPI?

On our scheduled checks, SWAPI leads on measured uptime — Nebulum Mars Rovers API at —% versus SWAPI at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Nebulum Mars Rovers API and SWAPI need an API key?

Neither needs a paid key — Nebulum Mars Rovers API is callable with no signup, and SWAPI is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Nebulum Mars Rovers API and SWAPI from the browser?

Yes — both Nebulum Mars Rovers API and SWAPI send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Nebulum Mars Rovers API and SWAPI free for commercial use?

Nebulum Mars Rovers API has unclear commercial terms, and SWAPI has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.