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MCU Countdown vs Openwhyd

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

APIMCU CountdownNEW—OpenwhydNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (movie data from TMDB)Unverified
Free tierFree — limits not publishedFree — no key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

MCU Countdown vs Openwhyd: common questions

Which is more reliable, MCU Countdown or Openwhyd?

On our scheduled checks, Openwhyd leads on measured uptime — MCU Countdown at —% versus Openwhyd 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 MCU Countdown and Openwhyd need an API key?

Neither needs a paid key — MCU Countdown is callable with no signup, and Openwhyd is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call MCU Countdown and Openwhyd from the browser?

Only MCU Countdown is browser-friendly — it returns CORS headers over HTTPS. Openwhyd needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are MCU Countdown and Openwhyd free for commercial use?

MCU Countdown has unclear commercial terms, and Openwhyd 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.