Onyx Bazaar vs Quandl
Same instrument, two spec sheets — measured, not claimed.
Onyx Bazaar vs Quandl: common questions
Which is more reliable, Onyx Bazaar or Quandl?
Both are neck-and-neck — Onyx Bazaar and Quandl each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, Onyx Bazaar or Quandl?
Onyx Bazaar has the lower median latency in our checks — Onyx Bazaar responds in 607 ms versus Quandl at 823 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 Onyx Bazaar and Quandl need an API key?
Neither needs a paid key — Onyx Bazaar is callable with no signup, and Quandl is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Onyx Bazaar and Quandl from the browser?
Only Onyx Bazaar 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 Onyx Bazaar and Quandl free for commercial use?
Onyx Bazaar 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.