Amanah Sunnah vs Gutendex

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedPublic domain (Project Gutenberg data)
Free tierFree tier — API key requiredFree, no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Amanah Sunnah vs Gutendex: common questions

Which is more reliable, Amanah Sunnah or Gutendex?

On our scheduled checks, Gutendex leads on measured uptime — Amanah Sunnah at —% versus Gutendex 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 Amanah Sunnah and Gutendex need an API key?

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

Can I call Amanah Sunnah and Gutendex from the browser?

Yes — both Amanah Sunnah and Gutendex 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 Amanah Sunnah and Gutendex free for commercial use?

Amanah Sunnah has unclear commercial terms, and Gutendex 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.