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MCU Countdown vs Sunor

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

APIMCU CountdownNEW—SunorNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (movie data from TMDB)Unverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

MCU Countdown vs Sunor: common questions

Which is more reliable, MCU Countdown or Sunor?

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

MCU Countdown needs no key, while Sunor requires a free API key. If you want to start calling without signup, reach for MCU Countdown first.

Can I call MCU Countdown and Sunor from the browser?

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

Are MCU Countdown and Sunor free for commercial use?

MCU Countdown has unclear commercial terms, and Sunor 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.