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Namedays Calendar vs Nexmo API

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

APINamedays CalendarNEW—Nexmo APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublished10, 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 —% versus Nexmo API 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 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?

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

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.