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OWASP API Security Project vs ValidEU API

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

APIOWASP API Security ProjectDEAD0ValidEU APIHEALTHY97
Uptime · 30d
Uptime · 90d55.6%100%
Uptime · 30d0.0%100%
P50 · ms176296
P95 · ms1646501
AuthnoneapiKey
CORSyesno
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

OWASP API Security Project vs ValidEU API: common questions

Which is more reliable, OWASP API Security Project or ValidEU API?

On our scheduled checks, ValidEU API leads on measured uptime — OWASP API Security Project at 55.6% versus ValidEU API at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, OWASP API Security Project or ValidEU API?

OWASP API Security Project has the lower median latency in our checks — OWASP API Security Project responds in 176 ms versus ValidEU API at 296 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 OWASP API Security Project and ValidEU API need an API key?

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

Can I call OWASP API Security Project and ValidEU API from the browser?

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

Are OWASP API Security Project and ValidEU API free for commercial use?

OWASP API Security Project 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.