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MailboxValidator Free Email Checker vs OpenRouter Models

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

APIMailboxValidator Free Email CheckerHEALTHY94OpenRouter ModelsHEALTHY80
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms5271438
P95 · ms11382043
AuthapiKeynone
CORSnono
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 OpenRouter Models: common questions

Which is more reliable, MailboxValidator Free Email Checker or OpenRouter Models?

Both are neck-and-neck — MailboxValidator Free Email Checker and OpenRouter Models 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 OpenRouter Models?

MailboxValidator Free Email Checker has the lower median latency in our checks — MailboxValidator Free Email Checker responds in 527 ms versus OpenRouter Models at 1438 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 OpenRouter Models need an API key?

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

Can I call MailboxValidator Free Email Checker and OpenRouter Models from the browser?

Neither sends browser-friendly CORS headers reliably, so call MailboxValidator Free Email Checker and OpenRouter Models from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are MailboxValidator Free Email Checker and OpenRouter Models free for commercial use?

MailboxValidator Free Email Checker has unclear commercial terms, and OpenRouter Models 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.