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Buddy vs Chronicling America

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

APIBuddyNEW—Chronicling AmericaNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedPublic domain / no known copyright (Library of Congress)
Free tierFree tier — API key requiredFree — public-domain collection data
Rate limitUnpublishedLoC throttles heavy crawling (see LoC API policy)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Buddy vs Chronicling America: common questions

Which is more reliable, Buddy or Chronicling America?

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

Chronicling America needs no key, while Buddy requires a free API key. If you want to start calling without signup, reach for Chronicling America first.

Can I call Buddy and Chronicling America from the browser?

Only Buddy is browser-friendly — it returns CORS headers over HTTPS. Chronicling America needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Buddy and Chronicling America free for commercial use?

Buddy has unclear commercial terms, and Chronicling America allows commercial use on its free tier. 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.