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Nexmo API vs Telegraph

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

APINexmo APIHEALTHY95TelegraphHEALTHY91
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms226444
P95 · ms12123497
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limit10, 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 1Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Nexmo API vs Telegraph: common questions

Which is more reliable, Nexmo API or Telegraph?

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

Nexmo API has the lower median latency in our checks — Nexmo API responds in 226 ms versus Telegraph at 444 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 Nexmo API and Telegraph need an API key?

Both ask you to authenticate — Nexmo API uses an API key and Telegraph 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 Nexmo API and Telegraph from the browser?

Only Telegraph 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 Nexmo API and Telegraph free for commercial use?

Nexmo API has unclear commercial terms, and Telegraph 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.