Urban Dictionary vs Zen Quotes

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

Uptime · 30d
Uptime · 90d100%90.2%
Uptime · 30d100%86.7%
P50 · ms8951657
P95 · ms39254714
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — no key
Rate limitUnpublishedRate-limited on the free tier (see zenquotes.io)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Urban Dictionary vs Zen Quotes: common questions

Which is more reliable, Urban Dictionary or Zen Quotes?

On our scheduled checks, Urban Dictionary leads on measured uptime — Urban Dictionary at 100% versus Zen Quotes at 90.2% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Urban Dictionary or Zen Quotes?

Urban Dictionary has the lower median latency in our checks — Urban Dictionary responds in 895 ms versus Zen Quotes at 1657 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Urban Dictionary and Zen Quotes need an API key?

Neither needs a paid key — Urban Dictionary 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 Urban Dictionary and Zen Quotes from the browser?

Only Urban Dictionary 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 Urban Dictionary and Zen Quotes free for commercial use?

Urban Dictionary has unclear commercial terms, 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.