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Poof vs Simkl

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

APIPoofNEW—SimklNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedSimkl terms — user-contributed data
Free tierFree tier — API key requiredFree read routes; client_id for search
Rate limitUnpublished1 req/s documented
In directory since2026-07-052026-07-05
operationalpartialdownno data

Poof vs Simkl: common questions

Which is more reliable, Poof or Simkl?

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

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

Can I call Poof and Simkl from the browser?

Yes — both Poof and Simkl 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 Poof and Simkl free for commercial use?

Poof has unclear commercial terms, and Simkl 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.