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OkSurf vs ValidEU API

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

APIOkSurfNEW—ValidEU APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

OkSurf vs ValidEU API: common questions

Which is more reliable, OkSurf or ValidEU API?

On our scheduled checks, ValidEU API leads on measured uptime — OkSurf at —% versus ValidEU API 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 OkSurf and ValidEU API need an API key?

OkSurf needs no key, while ValidEU API requires a free API key. If you want to start calling without signup, reach for OkSurf first.

Can I call OkSurf and ValidEU API from the browser?

Neither sends browser-friendly CORS headers reliably, so call OkSurf and ValidEU API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are OkSurf and ValidEU API free for commercial use?

OkSurf has unclear commercial terms, and ValidEU 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.