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Gladia vs Quandl

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

APIGladiaNEW—QuandlNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Gladia vs Quandl: common questions

Which is more reliable, Gladia or Quandl?

On our scheduled checks, Quandl leads on measured uptime — Gladia at —% versus Quandl 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 Gladia and Quandl need an API key?

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

Can I call Gladia and Quandl from the browser?

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

Are Gladia and Quandl free for commercial use?

Gladia has unclear commercial terms, and Quandl 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.