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Wizard World vs Wolne Lektury

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

APIWizard WorldHEALTHY93Wolne LekturyHEALTHY65
Uptime · 30d
Uptime · 90d100%75.5%
Uptime · 30d100%81.7%
P50 · ms6231145
P95 · ms12424998
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 limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Wizard World vs Wolne Lektury: common questions

Which is more reliable, Wizard World or Wolne Lektury?

On our scheduled checks, Wizard World leads on measured uptime — Wizard World 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, Wizard World or Wolne Lektury?

Wizard World has the lower median latency in our checks — Wizard World responds in 623 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 Wizard World and Wolne Lektury need an API key?

Neither needs a paid key — Wizard World 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 Wizard World and Wolne Lektury from the browser?

Yes — both Wizard World 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 Wizard World and Wolne Lektury free for commercial use?

Wizard World 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.