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CDNJS vs OnSched Consumer API

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

APICDNJSHEALTHY95OnSched Consumer APIHEALTHY88
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms281722
P95 · ms9361890
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree and open, no keyFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CDNJS vs OnSched Consumer API: common questions

Which is more reliable, CDNJS or OnSched Consumer API?

Both are neck-and-neck — CDNJS and OnSched Consumer API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, CDNJS or OnSched Consumer API?

CDNJS has the lower median latency in our checks — CDNJS responds in 281 ms versus OnSched Consumer API at 722 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 CDNJS and OnSched Consumer API need an API key?

CDNJS needs no key, while OnSched Consumer API requires a free API key. If you want to start calling without signup, reach for CDNJS first.

Can I call CDNJS and OnSched Consumer API from the browser?

Yes — both CDNJS and OnSched Consumer 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 CDNJS and OnSched Consumer API free for commercial use?

CDNJS has unclear commercial terms, and OnSched Consumer 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.