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OWASP API Security Project vs Warnely

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

APIOWASP API Security ProjectDEAD0WarnelyDYING73
Uptime · 30d
Uptime · 90d55.6%62.8%
Uptime · 30d0.0%3.3%
P50 · ms176342
P95 · ms16461554
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublished100 req/window · 99 remaining · resets 60
In directory since2026-07-052026-07-05
operationalpartialdownno data

OWASP API Security Project vs Warnely: common questions

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

On our scheduled checks, Warnely leads on measured uptime — OWASP API Security Project at 55.6% versus Warnely at 62.8% 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 Warnely?

OWASP API Security Project has the lower median latency in our checks — OWASP API Security Project responds in 176 ms versus Warnely at 342 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 Warnely need an API key?

Neither needs a paid key — OWASP API Security Project is callable with no signup, and Warnely is callable with no signup. Both are quick to prototype with; rate limits still apply.

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

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

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

OWASP API Security Project has unclear commercial terms, and Warnely 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.