Exchangerate.host vs Yahoo Finance Chart

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

Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d98.3%100%
P50 · ms398167
P95 · ms3637407
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Exchangerate.host vs Yahoo Finance Chart: common questions

Which is more reliable, Exchangerate.host or Yahoo Finance Chart?

On our scheduled checks, Yahoo Finance Chart leads on measured uptime — Exchangerate.host at 99.02% versus Yahoo Finance Chart 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 Yahoo Finance Chart?

Yahoo Finance Chart has the lower median latency in our checks — Exchangerate.host responds in 398 ms versus Yahoo Finance Chart at 167 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 Yahoo Finance Chart need an API key?

Neither needs a paid key — Exchangerate.host is callable with no signup, and Yahoo Finance Chart is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Exchangerate.host and Yahoo Finance Chart from the browser?

Only Exchangerate.host is browser-friendly — it returns CORS headers over HTTPS. Yahoo Finance Chart needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Exchangerate.host and Yahoo Finance Chart free for commercial use?

Exchangerate.host has unclear commercial terms, and Yahoo Finance Chart 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.