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Open Science Framework vs NASA APOD

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

APIOpen Science FrameworkNEW—NASA APODHEALTHY—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedPublic domain (US Gov)
Free tierFree — limits not published1,000 req/hour with free key
Rate limitUnpublishedDEMO_KEY: 30/hour, 50/day
In directory since2026-07-052026-05-02
operationalpartialdownno data

Open Science Framework vs NASA APOD: common questions

Which is more reliable, Open Science Framework or NASA APOD?

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

Open Science Framework needs no key, while NASA APOD requires a free API key. If you want to start calling without signup, reach for Open Science Framework first.

Can I call Open Science Framework and NASA APOD from the browser?

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

Are Open Science Framework and NASA APOD free for commercial use?

Open Science Framework has unclear commercial terms, and NASA APOD allows commercial use on its free tier. 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.