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Exchangerate.dev vs Yahoo Finance Chart

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

APIExchangerate.devDYING63Yahoo Finance ChartHEALTHY99
Uptime · 30d
Uptime · 90d71.6%100%
Uptime · 30d51.7%100%
P50 · ms336167
P95 · ms807407
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limit12 req/window · 11 remaining · resets 1783515720Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Exchangerate.dev vs Yahoo Finance Chart: common questions

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

On our scheduled checks, Yahoo Finance Chart leads on measured uptime — Exchangerate.dev at 71.6% 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.dev or Yahoo Finance Chart?

Yahoo Finance Chart has the lower median latency in our checks — Exchangerate.dev responds in 336 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.dev and Yahoo Finance Chart need an API key?

Neither needs a paid key — Exchangerate.dev 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.dev and Yahoo Finance Chart from the browser?

Only Exchangerate.dev 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.dev and Yahoo Finance Chart free for commercial use?

Exchangerate.dev 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.