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Open VSX Registry API vs WHO Global Health Observatory API

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

APIOpen VSX Registry APIHEALTHY95WHO Global Health Observatory APIHEALTHY80
Uptime · 30d
Uptime · 90d100%88.2%
Uptime · 30d100%81.7%
P50 · ms245872
P95 · ms6932320
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limit10800 req/window · 10799 remainingUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Open VSX Registry API vs WHO Global Health Observatory API: common questions

Which is more reliable, Open VSX Registry API or WHO Global Health Observatory API?

On our scheduled checks, Open VSX Registry API leads on measured uptime — Open VSX Registry API at 100% versus WHO Global Health Observatory API at 88.2% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Open VSX Registry API or WHO Global Health Observatory API?

Open VSX Registry API has the lower median latency in our checks — Open VSX Registry API responds in 245 ms versus WHO Global Health Observatory API at 872 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Open VSX Registry API and WHO Global Health Observatory API need an API key?

Neither needs a paid key — Open VSX Registry API is callable with no signup, and WHO Global Health Observatory API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Open VSX Registry API and WHO Global Health Observatory API from the browser?

Only Open VSX Registry API is browser-friendly — it returns CORS headers over HTTPS. WHO Global Health Observatory API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Open VSX Registry API and WHO Global Health Observatory API free for commercial use?

Open VSX Registry API has unclear commercial terms, and WHO Global Health Observatory 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.