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Autoscrape API vs MailboxValidator Free Email Checker

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

APIAutoscrape APIHEALTHY87MailboxValidator Free Email CheckerHEALTHY94
Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d100%100%
P50 · ms717527
P95 · ms14441138
AuthnoneapiKey
CORSyesno
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

Autoscrape API vs MailboxValidator Free Email Checker: common questions

Which is more reliable, Autoscrape API or MailboxValidator Free Email Checker?

On our scheduled checks, MailboxValidator Free Email Checker leads on measured uptime — Autoscrape API at 99.02% versus MailboxValidator Free Email Checker at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Autoscrape API or MailboxValidator Free Email Checker?

MailboxValidator Free Email Checker has the lower median latency in our checks — Autoscrape API responds in 717 ms versus MailboxValidator Free Email Checker at 527 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 Autoscrape API and MailboxValidator Free Email Checker need an API key?

Autoscrape API needs no key, while MailboxValidator Free Email Checker requires a free API key. If you want to start calling without signup, reach for Autoscrape API first.

Can I call Autoscrape API and MailboxValidator Free Email Checker from the browser?

Only Autoscrape API is browser-friendly — it returns CORS headers over HTTPS. MailboxValidator Free Email Checker needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Autoscrape API and MailboxValidator Free Email Checker free for commercial use?

Autoscrape API has unclear commercial terms, and MailboxValidator Free Email Checker 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.