HasData: Structured Web Data APIs vs OWASP API Security Project

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

HasData: Structured Web Data APIs vs OWASP API Security Project: common questions

Which is more reliable, HasData: Structured Web Data APIs or OWASP API Security Project?

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

Do HasData: Structured Web Data APIs and OWASP API Security Project need an API key?

OWASP API Security Project needs no key, while HasData: Structured Web Data APIs requires a free API key. If you want to start calling without signup, reach for OWASP API Security Project first.

Can I call HasData: Structured Web Data APIs and OWASP API Security Project from the browser?

Yes — both HasData: Structured Web Data APIs 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 HasData: Structured Web Data APIs and OWASP API Security Project free for commercial use?

HasData: Structured Web Data APIs 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.