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VulDB vs FilterLists

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

APIVulDBUNMONITORED—FilterListsNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — no key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

VulDB vs FilterLists: common questions

Which is more reliable, VulDB or FilterLists?

Only FilterLists is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do VulDB and FilterLists need an API key?

FilterLists needs no key, while VulDB requires a free API key. If you want to start calling without signup, reach for FilterLists first.

Can I call VulDB and FilterLists from the browser?

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

Are VulDB and FilterLists free for commercial use?

VulDB has unclear commercial terms, and FilterLists 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.