Wolne Lektury vs KDP Intelligence
Same instrument, two spec sheets — measured, not claimed.
Wolne Lektury vs KDP Intelligence: common questions
Which is more reliable, Wolne Lektury or KDP Intelligence?
On our scheduled checks, KDP Intelligence leads on measured uptime — Wolne Lektury at —% versus KDP Intelligence 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 Wolne Lektury and KDP Intelligence need an API key?
Neither needs a paid key — Wolne Lektury is callable with no signup, and KDP Intelligence is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Wolne Lektury and KDP Intelligence from the browser?
Only Wolne Lektury is browser-friendly — it returns CORS headers over HTTPS. KDP Intelligence needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are Wolne Lektury and KDP Intelligence free for commercial use?
Wolne Lektury has unclear commercial terms, and KDP Intelligence 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.