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Acoustid API vs Scrapfly

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

APIAcoustid APINEW—ScrapflyNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Acoustid API vs Scrapfly: common questions

Which is more reliable, Acoustid API or Scrapfly?

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

Both ask you to authenticate — Acoustid API uses an API key and Scrapfly uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Acoustid API and Scrapfly from the browser?

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

Are Acoustid API and Scrapfly free for commercial use?

Acoustid API has unclear commercial terms, and Scrapfly 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.