Coinlayer vs Kraken
Same instrument, two spec sheets — measured, not claimed.
Coinlayer vs Kraken: common questions
Which is more reliable, Coinlayer or Kraken?
On our scheduled checks, Kraken leads on measured uptime — Coinlayer at 99.02% versus Kraken at 100% 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, Coinlayer or Kraken?
Kraken has the lower median latency in our checks — Coinlayer responds in 467 ms versus Kraken at 155 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 Coinlayer and Kraken need an API key?
Kraken needs no key, while Coinlayer requires a free API key. If you want to start calling without signup, reach for Kraken first.
Can I call Coinlayer and Kraken from the browser?
Yes — both Coinlayer and Kraken 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 Coinlayer and Kraken free for commercial use?
Coinlayer has unclear commercial terms, and Kraken 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.