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MCU Countdown vs YouTube Transcript Search API by Arcmira

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

APIMCU CountdownHEALTHY92YouTube Transcript Search API by ArcmiraREACHABLE100
Uptime · 30d
Uptime · 90d98.9%100%
Uptime · 30d96.6%100%
P50 · ms3882109
P95 · ms44033179
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (movie data from TMDB)
Free tierFree — limits not published
Rate limitUnpublished
In directory since2026-07-052026-10-12
operationalpartialdownno data

MCU Countdown vs YouTube Transcript Search API by Arcmira: common questions

Which is more reliable, MCU Countdown or YouTube Transcript Search API by Arcmira?

On our scheduled checks, YouTube Transcript Search API by Arcmira leads on measured uptime — MCU Countdown at 98.9% versus YouTube Transcript Search API by Arcmira 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, MCU Countdown or YouTube Transcript Search API by Arcmira?

MCU Countdown has the lower median latency in our checks — MCU Countdown responds in 388 ms versus YouTube Transcript Search API by Arcmira at 2109 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 MCU Countdown and YouTube Transcript Search API by Arcmira need an API key?

MCU Countdown needs no key, while YouTube Transcript Search API by Arcmira requires a free API key. If you want to start calling without signup, reach for MCU Countdown first.

Can I call MCU Countdown and YouTube Transcript Search API by Arcmira from the browser?

Yes — both MCU Countdown and YouTube Transcript Search API by Arcmira send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are MCU Countdown and YouTube Transcript Search API by Arcmira free for commercial use?

MCU Countdown has unclear commercial terms, and YouTube Transcript Search API by Arcmira 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.