New York Times vs Open Library

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedMixed — mostly open
Free tierFree tier — 500 requests/dayUnlimited within courtesy limits
Rate limit500 requests/day on free planSoft — identified UA appreciated
In directory since2026-07-052026-05-02
operationalpartialdownno data

New York Times vs Open Library: common questions

Which is more reliable, New York Times or Open Library?

On our scheduled checks, Open Library leads on measured uptime — New York Times at —% versus Open Library 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 New York Times and Open Library need an API key?

Open Library needs no key, while New York Times requires a free API key. If you want to start calling without signup, reach for Open Library first.

Can I call New York Times and Open Library from the browser?

Yes — both New York Times and Open Library send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are New York Times and Open Library free for commercial use?

New York Times 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.