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Acoustid API vs jsDelivr

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

APIAcoustid APINEW—jsDelivrNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree, no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Acoustid API vs jsDelivr: common questions

Which is more reliable, Acoustid API or jsDelivr?

On our scheduled checks, jsDelivr leads on measured uptime — Acoustid API at —% versus jsDelivr 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 Acoustid API and jsDelivr need an API key?

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

Can I call Acoustid API and jsDelivr from the browser?

Yes — both Acoustid API and jsDelivr 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 Acoustid API and jsDelivr free for commercial use?

Acoustid API has unclear commercial terms, and jsDelivr 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.