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jsDelivr vs OnSched Consumer API

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

APIjsDelivrHEALTHY98OnSched Consumer APIHEALTHY88
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms181722
P95 · ms10571890
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree, no keyFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

jsDelivr vs OnSched Consumer API: common questions

Which is more reliable, jsDelivr or OnSched Consumer API?

Both are neck-and-neck — jsDelivr 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, jsDelivr or OnSched Consumer API?

jsDelivr has the lower median latency in our checks — jsDelivr responds in 181 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 jsDelivr and OnSched Consumer API need an API key?

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

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

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

jsDelivr 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.