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Lowy Asia Power Index vs Open VSX Registry API

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

APILowy Asia Power IndexHEALTHY92Open VSX Registry APIHEALTHY95
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms558245
P95 · ms2319693
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (Lowy Institute research)Unverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublished10800 req/window · 10799 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

Lowy Asia Power Index vs Open VSX Registry API: common questions

Which is more reliable, Lowy Asia Power Index or Open VSX Registry API?

Both are neck-and-neck — Lowy Asia Power Index and Open VSX Registry API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Lowy Asia Power Index or Open VSX Registry API?

Open VSX Registry API has the lower median latency in our checks — Lowy Asia Power Index responds in 558 ms versus Open VSX Registry API at 245 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 Lowy Asia Power Index and Open VSX Registry API need an API key?

Neither needs a paid key — Lowy Asia Power Index is callable with no signup, and Open VSX Registry API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Lowy Asia Power Index and Open VSX Registry API from the browser?

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

Are Lowy Asia Power Index and Open VSX Registry API free for commercial use?

Lowy Asia Power Index 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.