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Onyx Bazaar vs OWASP API Security Project

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

APIOnyx BazaarHEALTHY80OWASP API Security ProjectHEALTHY98
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms607205
P95 · ms13891646
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Onyx Bazaar vs OWASP API Security Project: common questions

Which is more reliable, Onyx Bazaar or OWASP API Security Project?

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

OWASP API Security Project has the lower median latency in our checks — Onyx Bazaar responds in 607 ms versus OWASP API Security Project at 205 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 Onyx Bazaar and OWASP API Security Project need an API key?

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

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

Yes — both Onyx Bazaar and OWASP API Security Project send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Onyx Bazaar and OWASP API Security Project free for commercial use?

Onyx Bazaar has unclear commercial terms, and OWASP API Security Project 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.