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OkSurf vs Statistics of the World

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

APIOkSurfHEALTHY91Statistics of the WorldHEALTHY88
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms624743
P95 · ms18701573
Authnonenone
CORSnoyes
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

OkSurf vs Statistics of the World: common questions

Which is more reliable, OkSurf or Statistics of the World?

Both are neck-and-neck — OkSurf 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, OkSurf or Statistics of the World?

OkSurf has the lower median latency in our checks — OkSurf responds in 624 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 OkSurf and Statistics of the World need an API key?

Neither needs a paid key — OkSurf 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 OkSurf and Statistics of the World from the browser?

Only Statistics of the World is browser-friendly — it returns CORS headers over HTTPS. OkSurf needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are OkSurf and Statistics of the World free for commercial use?

OkSurf 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.