Vonage (Nexmo) API vs Kickbox

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — open disposable-address check
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Vonage (Nexmo) API vs Kickbox: common questions

Which is more reliable, Vonage (Nexmo) API or Kickbox?

Only Kickbox is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do Vonage (Nexmo) API and Kickbox need an API key?

Kickbox needs no key, while Vonage (Nexmo) API requires a free API key. If you want to start calling without signup, reach for Kickbox first.

Can I call Vonage (Nexmo) API and Kickbox from the browser?

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

Are Vonage (Nexmo) API and Kickbox free for commercial use?

Vonage (Nexmo) API has unclear commercial terms, and Kickbox 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.