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Lowy Asia Power Index vs Open Library

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

APILowy Asia Power IndexHEALTHY92Open LibraryHEALTHY73
Uptime · 30d
Uptime · 90d100%88.2%
Uptime · 30d100%81.7%
P50 · ms5581629
P95 · ms23194878
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (Lowy Institute research)Mixed — mostly open
Free tierFree — limits not publishedUnlimited within courtesy limits
Rate limitUnpublishedSoft — identified UA appreciated
In directory since2026-07-052026-05-02
operationalpartialdownno data

Lowy Asia Power Index vs Open Library: common questions

Which is more reliable, Lowy Asia Power Index or Open Library?

On our scheduled checks, Lowy Asia Power Index leads on measured uptime — Lowy Asia Power Index at 100% versus Open Library 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, Lowy Asia Power Index or Open Library?

Lowy Asia Power Index has the lower median latency in our checks — Lowy Asia Power Index responds in 558 ms versus Open Library at 1629 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 Library need an API key?

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

Can I call Lowy Asia Power Index and Open Library from the browser?

Only Open Library 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 Library free for commercial use?

Lowy Asia Power Index has unclear commercial terms, and Open Library 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.