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iQualify Management API vs Open VSX Registry API

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

APIiQualify Management APINEW—Open VSX Registry APINEW—
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 limitUnpublished10800 req/window · 10799 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

iQualify Management API vs Open VSX Registry API: common questions

Which is more reliable, iQualify Management API or Open VSX Registry API?

On our scheduled checks, Open VSX Registry API leads on measured uptime — iQualify Management API at —% versus Open VSX Registry 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 iQualify Management API and Open VSX Registry API need an API key?

Open VSX Registry API needs no key, while iQualify Management API requires a free API key. If you want to start calling without signup, reach for Open VSX Registry API first.

Can I call iQualify Management API and Open VSX Registry API from the browser?

Yes — both iQualify Management API and Open VSX Registry API 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 iQualify Management API and Open VSX Registry API free for commercial use?

iQualify Management API has unclear commercial terms, and Open VSX Registry 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.