Kanji API vs Random Word API

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms395564
P95 · ms2870963
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Kanji API vs Random Word API: common questions

Which is more reliable, Kanji API or Random Word API?

Both are neck-and-neck — Kanji API and Random Word API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Kanji API or Random Word API?

Kanji API has the lower median latency in our checks — Kanji API responds in 395 ms versus Random Word API at 564 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 Kanji API and Random Word API need an API key?

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

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

Yes — both Kanji API and Random Word API 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 Kanji API and Random Word API free for commercial use?

Kanji API has unclear commercial terms, and Random Word API 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.