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Micro User Service vs Quandl

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

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

Micro User Service vs Quandl: common questions

Which is more reliable, Micro User Service or Quandl?

On our scheduled checks, Quandl leads on measured uptime — Micro User Service 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 Micro User Service and Quandl need an API key?

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

Can I call Micro User Service and Quandl from the browser?

Only Micro User Service 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 Micro User Service and Quandl free for commercial use?

Micro User Service 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.