Nebulum Mars Rovers API vs Screenshotlayer

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Nebulum Mars Rovers API vs Screenshotlayer: common questions

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

On our scheduled checks, Screenshotlayer leads on measured uptime — Nebulum Mars Rovers API at —% versus Screenshotlayer 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 Screenshotlayer need an API key?

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

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

Only Nebulum Mars Rovers API is browser-friendly — it returns CORS headers over HTTPS. Screenshotlayer needs a server-side call or proxy, so factor that into which one fits a front-end project.

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

Nebulum Mars Rovers API has unclear commercial terms, and Screenshotlayer 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.