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Random Word API vs Wiktionary

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

APIRandom Word APINEW—WiktionaryNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedContent under CC BY-SA 4.0 / GFDL
Free tierFree — limits not publishedFree — public MediaWiki action API
Rate limitUnpublishedNo hard published cap; Wikimedia User-Agent policy and request-etiquette apply
In directory since2026-07-052026-07-05
operationalpartialdownno data

Random Word API vs Wiktionary: common questions

Which is more reliable, Random Word API or Wiktionary?

On our scheduled checks, Wiktionary leads on measured uptime — Random Word API at —% versus Wiktionary 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 Random Word API and Wiktionary need an API key?

Neither needs a paid key — Random Word API is callable with no signup, and Wiktionary is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Random Word API and Wiktionary from the browser?

Only Random Word API is browser-friendly — it returns CORS headers over HTTPS. Wiktionary needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Random Word API and Wiktionary free for commercial use?

Random Word API has unclear commercial terms, and Wiktionary 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.