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Bufferapp vs Nexmo API

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

APIBufferappHEALTHY90Nexmo APIHEALTHY93
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms547567
P95 · ms11241221
AuthapiKeyapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree 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

Bufferapp vs Nexmo API: common questions

Which is more reliable, Bufferapp or Nexmo API?

Both are neck-and-neck — Bufferapp 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, Bufferapp or Nexmo API?

Bufferapp has the lower median latency in our checks — Bufferapp responds in 547 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 Bufferapp and Nexmo API need an API key?

Both ask you to authenticate — Bufferapp uses an API key and Nexmo API uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Bufferapp and Nexmo API from the browser?

Neither sends browser-friendly CORS headers reliably, so call Bufferapp 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 Bufferapp and Nexmo API free for commercial use?

Bufferapp 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.