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CIRCL CVE Search vs NewsCatcher

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

APICIRCL CVE SearchNEW—NewsCatcherNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CIRCL CVE Search vs NewsCatcher: common questions

Which is more reliable, CIRCL CVE Search or NewsCatcher?

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

Both ask you to authenticate — CIRCL CVE Search uses an API key and NewsCatcher uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call CIRCL CVE Search and NewsCatcher from the browser?

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

Are CIRCL CVE Search and NewsCatcher free for commercial use?

CIRCL CVE Search has unclear commercial terms, and NewsCatcher 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.