Quandl vs Umeå Open Data
Same instrument, two spec sheets — measured, not claimed.
Quandl vs Umeå Open Data: common questions
Which is more reliable, Quandl or Umeå Open Data?
On our scheduled checks, Quandl leads on measured uptime — Quandl at 100% versus Umeå Open Data at 89.2% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, Quandl or Umeå Open Data?
Quandl has the lower median latency in our checks — Quandl responds in 823 ms versus Umeå Open Data at 1445 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do Quandl and Umeå Open Data need an API key?
Neither needs a paid key — Quandl is callable with no signup, and Umeå Open Data is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Quandl and Umeå Open Data from the browser?
Only Umeå Open Data 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 Quandl and Umeå Open Data free for commercial use?
Quandl has unclear commercial terms, and Umeå Open Data 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.