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Chronicling America vs Lowy Asia Power Index

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

APIChronicling AmericaNEW—Lowy Asia Power IndexNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licensePublic domain / no known copyright (Library of Congress)Unverified (Lowy Institute research)
Free tierFree — public-domain collection dataFree — limits not published
Rate limitLoC throttles heavy crawling (see LoC API policy)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Chronicling America vs Lowy Asia Power Index: common questions

Which is more reliable, Chronicling America or Lowy Asia Power Index?

On our scheduled checks, Lowy Asia Power Index leads on measured uptime — Chronicling America at —% versus Lowy Asia Power Index 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 Chronicling America and Lowy Asia Power Index need an API key?

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

Can I call Chronicling America and Lowy Asia Power Index from the browser?

Neither sends browser-friendly CORS headers reliably, so call Chronicling America and Lowy Asia Power Index from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Chronicling America and Lowy Asia Power Index free for commercial use?

Chronicling America allows commercial use on its free tier, and Lowy Asia Power Index 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.