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Kickbox vs Nexmo API

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

APIKickboxHEALTHY92Nexmo APIHEALTHY93
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms592567
P95 · ms36301221
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — open disposable-address checkFree 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

Kickbox vs Nexmo API: common questions

Which is more reliable, Kickbox or Nexmo API?

Both are neck-and-neck — Kickbox and Nexmo API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Kickbox or Nexmo API?

Nexmo API has the lower median latency in our checks — Kickbox responds in 592 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 Kickbox and Nexmo API need an API key?

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

Can I call Kickbox and Nexmo API from the browser?

Only Kickbox 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 Kickbox and Nexmo API free for commercial use?

Kickbox 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.