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NASA APOD vs SkyBiometry

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

APINASA APODHEALTHY—SkyBiometryREACHABLE—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesyes
HTTPSyesno
Card requirednono
Commercial useyesunclear
Data licensePublic domain (US Gov)Unverified
Free tier1,000 req/hour with free keyFree tier — API key required
Rate limitDEMO_KEY: 30/hour, 50/dayUnpublished
In directory since2026-05-022026-07-05
operationalpartialdownno data

NASA APOD vs SkyBiometry: common questions

Which is more reliable, NASA APOD or SkyBiometry?

On our scheduled checks, SkyBiometry leads on measured uptime — NASA APOD at —% versus SkyBiometry 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 NASA APOD and SkyBiometry need an API key?

Both ask you to authenticate — NASA APOD uses an API key and SkyBiometry uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call NASA APOD and SkyBiometry from the browser?

Only NASA APOD is browser-friendly — it returns CORS headers over HTTPS. SkyBiometry needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are NASA APOD and SkyBiometry free for commercial use?

NASA APOD allows commercial use on its free tier, and SkyBiometry 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.