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Simkl vs Unsplash

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

APISimklNEW—UnsplashNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseSimkl terms — user-contributed dataUnverified
Free tierFree read routes; client_id for searchFree tier — API key required
Rate limit1 req/s documentedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Simkl vs Unsplash: common questions

Which is more reliable, Simkl or Unsplash?

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

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

Can I call Simkl and Unsplash from the browser?

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

Simkl has unclear commercial terms, and Unsplash 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.