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Markbase vs Yahoo Finance Chart

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

APIMarkbaseNEW—Yahoo Finance ChartNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limit30 req/window · 29 remaining · resets 1783519324Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Markbase vs Yahoo Finance Chart: common questions

Which is more reliable, Markbase or Yahoo Finance Chart?

On our scheduled checks, Yahoo Finance Chart leads on measured uptime — Markbase at —% versus Yahoo Finance Chart at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Markbase and Yahoo Finance Chart need an API key?

Neither needs a paid key — Markbase 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 Markbase and Yahoo Finance Chart from the browser?

Only Markbase 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 Markbase and Yahoo Finance Chart free for commercial use?

Markbase 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.