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Lobsters vs Resend

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

APILobstersNEW—ResendNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Lobsters vs Resend: common questions

Which is more reliable, Lobsters or Resend?

On our scheduled checks, Resend leads on measured uptime — Lobsters 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 Lobsters and Resend need an API key?

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

Can I call Lobsters and Resend from the browser?

Neither sends browser-friendly CORS headers reliably, so call Lobsters 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 Lobsters and Resend free for commercial use?

Lobsters 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.