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Diffbot API vs Open Science Framework

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

APIDiffbot APIHEALTHY80Open Science FrameworkHEALTHY64
Uptime · 30d
Uptime · 90d100%97.1%
Uptime · 30d100%95.0%
P50 · ms1144952
P95 · ms48852111
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Diffbot API vs Open Science Framework: common questions

Which is more reliable, Diffbot API or Open Science Framework?

On our scheduled checks, Diffbot API leads on measured uptime — Diffbot API at 100% versus Open Science Framework at 97.1% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Diffbot API or Open Science Framework?

Open Science Framework has the lower median latency in our checks — Diffbot API responds in 1144 ms versus Open Science Framework at 952 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Diffbot API and Open Science Framework need an API key?

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

Can I call Diffbot API and Open Science Framework from the browser?

Only Diffbot API 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 Diffbot API and Open Science Framework free for commercial use?

Diffbot API has unclear commercial terms, and Open Science Framework 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.