Nexmo API vs Resend
Same instrument, two spec sheets — measured, not claimed.
Nexmo API vs Resend: common questions
Which is more reliable, Nexmo API or Resend?
On our scheduled checks, Resend leads on measured uptime — Nexmo API at —% versus Resend 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 Nexmo API and Resend need an API key?
Both ask you to authenticate — Nexmo API uses an API key and Resend 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 Resend from the browser?
Neither sends browser-friendly CORS headers reliably, so call Nexmo API and Resend from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Nexmo API and Resend free for commercial use?
Nexmo API has unclear commercial terms, and Resend 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.