Exchangerate.host vs Marketstack
Same instrument, two spec sheets — measured, not claimed.
Exchangerate.host vs Marketstack: common questions
Which is more reliable, Exchangerate.host or Marketstack?
On our scheduled checks, Marketstack leads on measured uptime — Exchangerate.host at 99.02% versus Marketstack 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, Exchangerate.host or Marketstack?
Exchangerate.host has the lower median latency in our checks — Exchangerate.host responds in 398 ms versus Marketstack at 470 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 Exchangerate.host and Marketstack need an API key?
Exchangerate.host needs no key, while Marketstack requires a free API key. If you want to start calling without signup, reach for Exchangerate.host first.
Can I call Exchangerate.host and Marketstack from the browser?
Only Exchangerate.host is browser-friendly — it returns CORS headers over HTTPS. Marketstack needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are Exchangerate.host and Marketstack free for commercial use?
Exchangerate.host has unclear commercial terms, and Marketstack 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.