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IBANforge vs Yahoo Finance Chart

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

APIIBANforgeHEALTHY73Yahoo Finance ChartHEALTHY95
Uptime · 30d
Uptime · 90d99.44%100%
Uptime · 30d98.3%100%
P50 · ms31089
P95 · ms2246370
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tier200 requests/month with a free API key; /v1/demo and /health are keylessFree — limits not published
Rate limitUnpublished (200/month free quota)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

IBANforge vs Yahoo Finance Chart: common questions

Which is more reliable, IBANforge or Yahoo Finance Chart?

On our scheduled checks, Yahoo Finance Chart leads on measured uptime — IBANforge at 99.44% 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, IBANforge or Yahoo Finance Chart?

Yahoo Finance Chart has the lower median latency in our checks — IBANforge responds in 310 ms versus Yahoo Finance Chart at 89 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 IBANforge and Yahoo Finance Chart need an API key?

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

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

IBANforge 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.