Excuser vs Open Trivia

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedCC BY-SA 4.0
Free tierFree — limits not publishedFree, no API key
Rate limitUnpublishedOne request per IP every 5 seconds (documented)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Excuser vs Open Trivia: common questions

Which is more reliable, Excuser or Open Trivia?

On our scheduled checks, Open Trivia leads on measured uptime — Excuser at —% versus Open Trivia 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 Excuser and Open Trivia need an API key?

Neither needs a paid key — Excuser is callable with no signup, and Open Trivia is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Excuser and Open Trivia from the browser?

Yes — both Excuser and Open Trivia 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 Excuser and Open Trivia free for commercial use?

Excuser has unclear commercial terms, and Open Trivia allows commercial use on its free tier. 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.