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Quran Cloud vs Wolne Lektury

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

APIQuran CloudHEALTHY99Wolne LekturyHEALTHY65
Uptime · 30d
Uptime · 90d100%75.5%
Uptime · 30d100%81.7%
P50 · ms1291145
P95 · ms5394998
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedWorks are public domain or on free/Creative Commons licenses (per WolneLektury); API terms not formally stated
Free tierFree — limits not publishedFree — limits not published
Rate limit12 req/window · 11 remaining · resets 1Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Quran Cloud vs Wolne Lektury: common questions

Which is more reliable, Quran Cloud or Wolne Lektury?

On our scheduled checks, Quran Cloud leads on measured uptime — Quran Cloud at 100% versus Wolne Lektury at 75.5% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Quran Cloud or Wolne Lektury?

Quran Cloud has the lower median latency in our checks — Quran Cloud responds in 129 ms versus Wolne Lektury at 1145 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Quran Cloud and Wolne Lektury need an API key?

Neither needs a paid key — Quran Cloud is callable with no signup, and Wolne Lektury is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Quran Cloud and Wolne Lektury from the browser?

Yes — both Quran Cloud and Wolne Lektury 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 Quran Cloud and Wolne Lektury free for commercial use?

Quran Cloud has unclear commercial terms, and Wolne Lektury 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.