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Open Trivia vs Rejection Reason Generator

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

APIOpen TriviaNEW—Rejection Reason GeneratorNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseCC BY-SA 4.0Unverified
Free tierFree, no API keyFree — limits not published
Rate limitOne request per IP every 5 seconds (documented)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Open Trivia vs Rejection Reason Generator: common questions

Which is more reliable, Open Trivia or Rejection Reason Generator?

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

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

Can I call Open Trivia and Rejection Reason Generator from the browser?

Yes — both Open Trivia and Rejection Reason Generator 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 Open Trivia and Rejection Reason Generator free for commercial use?

Open Trivia allows commercial use on its free tier, and Rejection Reason Generator 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.