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Namedays Calendar vs Nexmo API

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

APINamedays CalendarDYING88Nexmo APIHEALTHY93
Uptime · 30d
Uptime · 90d91.2%100%
Uptime · 30d85.0%100%
P50 · ms480567
P95 · ms27491221
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limit60 req/window · 58 remaining10, 120;w=60;name="crd|generic_key^nexmo-gloo.sanity-service-remote-address-120-rpm|remote_address", 10;w=1;name="crd|generic_key^nexmo-gloo.sanity-service-remote-address-10-rps|remote_address" req/window · 9 remaining · resets 1
In directory since2026-07-052026-07-05
operationalpartialdownno data

Namedays Calendar vs Nexmo API: common questions

Which is more reliable, Namedays Calendar or Nexmo API?

On our scheduled checks, Nexmo API leads on measured uptime — Namedays Calendar at 91.2% versus Nexmo 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, Namedays Calendar or Nexmo API?

Namedays Calendar has the lower median latency in our checks — Namedays Calendar responds in 480 ms versus Nexmo API at 567 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 Namedays Calendar and Nexmo API need an API key?

Namedays Calendar needs no key, while Nexmo API requires a free API key. If you want to start calling without signup, reach for Namedays Calendar first.

Can I call Namedays Calendar and Nexmo API from the browser?

Neither sends browser-friendly CORS headers reliably, so call Namedays Calendar and Nexmo API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Namedays Calendar and Nexmo API free for commercial use?

Namedays Calendar has unclear commercial terms, and Nexmo API 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.