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CheapShark API vs OWASP API Security Project

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

APICheapShark APIHEALTHY88OWASP API Security ProjectHEALTHY98
Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d98.3%100%
P50 · ms804205
P95 · ms24831646
Authnonenone
CORSnoyes
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

CheapShark API vs OWASP API Security Project: common questions

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

On our scheduled checks, OWASP API Security Project leads on measured uptime — CheapShark API at 99.02% versus OWASP API Security Project 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, CheapShark API or OWASP API Security Project?

OWASP API Security Project has the lower median latency in our checks — CheapShark API responds in 804 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 CheapShark API and OWASP API Security Project need an API key?

Neither needs a paid key — CheapShark API 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 CheapShark API and OWASP API Security Project from the browser?

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

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

CheapShark API 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.