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Free Dictionary API vs Statistics of the World

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

APIFree Dictionary APIHEALTHY90Statistics of the WorldHEALTHY88
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms674743
P95 · ms21961573
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (data sourced from World Bank & IMF)
Free tierFree — limits not publishedFree — no key (optional X-API-Key header)
Rate limitUnpublished1000 req/window · 999 remaining · resets 2026-07-09T11:30:37.514Z
In directory since2026-07-052026-07-05
operationalpartialdownno data

Free Dictionary API vs Statistics of the World: common questions

Which is more reliable, Free Dictionary API or Statistics of the World?

Both are neck-and-neck — Free Dictionary API and Statistics of the World 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, Free Dictionary API or Statistics of the World?

Free Dictionary API has the lower median latency in our checks — Free Dictionary API responds in 674 ms versus Statistics of the World at 743 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 Free Dictionary API and Statistics of the World need an API key?

Neither needs a paid key — Free Dictionary API is callable with no signup, and Statistics of the World is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Free Dictionary API and Statistics of the World from the browser?

Yes — both Free Dictionary API and Statistics of the World 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 Free Dictionary API and Statistics of the World free for commercial use?

Free Dictionary API has unclear commercial terms, and Statistics of the World 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.