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Fantasy Role Playing API vs MailboxValidator Free Email Checker

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

APIFantasy Role Playing APIHEALTHY94MailboxValidator Free Email CheckerHEALTHY94
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms434527
P95 · ms11281138
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

Fantasy Role Playing API vs MailboxValidator Free Email Checker: common questions

Which is more reliable, Fantasy Role Playing API or MailboxValidator Free Email Checker?

Both are neck-and-neck — Fantasy Role Playing API and MailboxValidator Free Email Checker 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, Fantasy Role Playing API or MailboxValidator Free Email Checker?

Fantasy Role Playing API has the lower median latency in our checks — Fantasy Role Playing API responds in 434 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 Fantasy Role Playing API and MailboxValidator Free Email Checker need an API key?

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

Can I call Fantasy Role Playing API and MailboxValidator Free Email Checker from the browser?

Only Fantasy Role Playing 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 Fantasy Role Playing API and MailboxValidator Free Email Checker free for commercial use?

Fantasy Role Playing 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.