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Footer Year Update vs Ntropy Transaction API v1

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

APIFooter Year UpdateNEW—Ntropy Transaction API v1NEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnono
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

Footer Year Update vs Ntropy Transaction API v1: common questions

Which is more reliable, Footer Year Update or Ntropy Transaction API v1?

On our scheduled checks, Ntropy Transaction API v1 leads on measured uptime — Footer Year Update at —% versus Ntropy Transaction API v1 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 Footer Year Update and Ntropy Transaction API v1 need an API key?

Neither needs a paid key — Footer Year Update is callable with no signup, and Ntropy Transaction API v1 is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Footer Year Update and Ntropy Transaction API v1 from the browser?

Neither sends browser-friendly CORS headers reliably, so call Footer Year Update and Ntropy Transaction API v1 from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Footer Year Update and Ntropy Transaction API v1 free for commercial use?

Footer Year Update has unclear commercial terms, and Ntropy Transaction API v1 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.