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Metropolitan Museum of Art vs Nebulum Mars Rovers API

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

APIMetropolitan Museum of ArtNEW—Nebulum Mars Rovers APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseCC0 1.0 (Open Access data)Unverified
Free tierFree, no API key requiredFree — limits not published
Rate limit80 requests/second (requested in docs)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Metropolitan Museum of Art vs Nebulum Mars Rovers API: common questions

Which is more reliable, Metropolitan Museum of Art or Nebulum Mars Rovers API?

On our scheduled checks, Nebulum Mars Rovers API leads on measured uptime — Metropolitan Museum of Art at —% versus Nebulum Mars Rovers API 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 Metropolitan Museum of Art and Nebulum Mars Rovers API need an API key?

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

Can I call Metropolitan Museum of Art and Nebulum Mars Rovers API from the browser?

Yes — both Metropolitan Museum of Art and Nebulum Mars Rovers API 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 Metropolitan Museum of Art and Nebulum Mars Rovers API free for commercial use?

Metropolitan Museum of Art allows commercial use on its free tier, and Nebulum Mars Rovers API 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.