MCU Countdown vs MediaCaption API

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

Uptime · 30d
Uptime · 90d98.9%100%
Uptime · 30d96.7%100%
P50 · ms3891016
P95 · ms44032101
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverified (movie data from TMDB)
Free tierFree — limits not published10 credits when you sign up
Rate limitUnpublished60 req/min
In directory since2026-07-052026-07-18
operationalpartialdownno data

MCU Countdown vs MediaCaption API: common questions

Which is more reliable, MCU Countdown or MediaCaption API?

On our scheduled checks, MediaCaption API leads on measured uptime — MCU Countdown at 98.9% versus MediaCaption API 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 MediaCaption API?

MCU Countdown has the lower median latency in our checks — MCU Countdown responds in 389 ms versus MediaCaption API at 1016 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 MediaCaption API need an API key?

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

Can I call MCU Countdown and MediaCaption API from the browser?

Yes — both MCU Countdown and MediaCaption API 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 MediaCaption API free for commercial use?

MCU Countdown has unclear commercial terms, and MediaCaption API allows commercial use on its free tier. 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.