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Himalayas vs MailCheck.ai

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

APIHimalayasNEW—MailCheck.aiNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublished5 req/window · 4 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

Himalayas vs MailCheck.ai: common questions

Which is more reliable, Himalayas or MailCheck.ai?

On our scheduled checks, MailCheck.ai leads on measured uptime — Himalayas at —% versus MailCheck.ai 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 Himalayas and MailCheck.ai need an API key?

Neither needs a paid key — Himalayas is callable with no signup, and MailCheck.ai is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Himalayas and MailCheck.ai from the browser?

Only MailCheck.ai is browser-friendly — it returns CORS headers over HTTPS. Himalayas needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Himalayas and MailCheck.ai free for commercial use?

Himalayas has unclear commercial terms, and MailCheck.ai 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.