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Open Trivia vs Zen Quotes

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

APIOpen TriviaNEW—Zen QuotesNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseCC BY-SA 4.0Unverified
Free tierFree, no API keyFree — no key
Rate limitOne request per IP every 5 seconds (documented)Rate-limited on the free tier (see zenquotes.io)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Open Trivia vs Zen Quotes: common questions

Which is more reliable, Open Trivia or Zen Quotes?

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

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

Can I call Open Trivia and Zen Quotes from the browser?

Only Open Trivia is browser-friendly — it returns CORS headers over HTTPS. Zen Quotes needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Open Trivia and Zen Quotes free for commercial use?

Open Trivia allows commercial use on its free tier, and Zen Quotes 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.