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OWASP API Security Project vs Registrum API

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

APIOWASP API Security ProjectHEALTHY98Registrum APIHEALTHY96
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms205246
P95 · ms16461553
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 Registrum API: common questions

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

Both are neck-and-neck — OWASP API Security Project and Registrum API 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, OWASP API Security Project or Registrum API?

OWASP API Security Project has the lower median latency in our checks — OWASP API Security Project responds in 205 ms versus Registrum API at 246 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 Registrum API need an API key?

OWASP API Security Project needs no key, while Registrum 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 Registrum API from the browser?

Only OWASP API Security Project is browser-friendly — it returns CORS headers over HTTPS. Registrum 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 Registrum API free for commercial use?

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