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Acoustid API vs Image-Charts

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

APIAcoustid APINEW—Image-ChartsNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
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

Acoustid API vs Image-Charts: common questions

Which is more reliable, Acoustid API or Image-Charts?

On our scheduled checks, Image-Charts leads on measured uptime — Acoustid API at —% versus Image-Charts 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 Image-Charts need an API key?

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

Can I call Acoustid API and Image-Charts from the browser?

Only Acoustid API is browser-friendly — it returns CORS headers over HTTPS. Image-Charts needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Acoustid API and Image-Charts free for commercial use?

Acoustid API has unclear commercial terms, and Image-Charts 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.