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Open Science Framework vs Open Notify

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

APIOpen Science FrameworkNEW—Open NotifyDYING—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesno
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedn/a
Free tierFree — limits not publishedUnlimited (volunteer-run)
Rate limitUnpublishedPlease be gentle
In directory since2026-07-052026-05-02
operationalpartialdownno data

Open Science Framework vs Open Notify: common questions

Which is more reliable, Open Science Framework or Open Notify?

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

Neither needs a paid key — Open Science Framework is callable with no signup, and Open Notify is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Open Science Framework and Open Notify from the browser?

Neither sends browser-friendly CORS headers reliably, so call Open Science Framework and Open Notify from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Open Science Framework and Open Notify free for commercial use?

Open Science Framework has unclear commercial terms, and Open Notify 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.