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CIRCL CVE Search vs RuntimeBuzz Article API

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

APICIRCL CVE SearchNEW—RuntimeBuzz Article APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
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

CIRCL CVE Search vs RuntimeBuzz Article API: common questions

Which is more reliable, CIRCL CVE Search or RuntimeBuzz Article API?

On our scheduled checks, RuntimeBuzz Article API leads on measured uptime — CIRCL CVE Search at —% versus RuntimeBuzz Article API 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 CIRCL CVE Search and RuntimeBuzz Article API need an API key?

RuntimeBuzz Article API needs no key, while CIRCL CVE Search requires a free API key. If you want to start calling without signup, reach for RuntimeBuzz Article API first.

Can I call CIRCL CVE Search and RuntimeBuzz Article API from the browser?

Only CIRCL CVE Search is browser-friendly — it returns CORS headers over HTTPS. RuntimeBuzz Article API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are CIRCL CVE Search and RuntimeBuzz Article API free for commercial use?

CIRCL CVE Search has unclear commercial terms, and RuntimeBuzz Article 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.