shipapis
StarSubmit an APISubmit API

MailboxValidator Free Email Checker vs Stoplight Elements API Docs

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

APIMailboxValidator Free Email CheckerHEALTHY94Stoplight Elements API DocsHEALTHY98
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms527214
P95 · ms11381132
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

MailboxValidator Free Email Checker vs Stoplight Elements API Docs: common questions

Which is more reliable, MailboxValidator Free Email Checker or Stoplight Elements API Docs?

Both are neck-and-neck — MailboxValidator Free Email Checker and Stoplight Elements API Docs 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, MailboxValidator Free Email Checker or Stoplight Elements API Docs?

Stoplight Elements API Docs has the lower median latency in our checks — MailboxValidator Free Email Checker responds in 527 ms versus Stoplight Elements API Docs at 214 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 MailboxValidator Free Email Checker and Stoplight Elements API Docs need an API key?

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

Can I call MailboxValidator Free Email Checker and Stoplight Elements API Docs from the browser?

Only Stoplight Elements API Docs 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 MailboxValidator Free Email Checker and Stoplight Elements API Docs free for commercial use?

MailboxValidator Free Email Checker has unclear commercial terms, and Stoplight Elements API Docs 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.