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Magic 8-Ball API vs MailCheck.ai

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

APIMagic 8-Ball APIHEALTHY95MailCheck.aiHEALTHY93
Uptime · 30d
Uptime · 90d100%93.1%
Uptime · 30d100%93.3%
P50 · ms442272
P95 · ms1134842
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

Magic 8-Ball API vs MailCheck.ai: common questions

Which is more reliable, Magic 8-Ball API or MailCheck.ai?

On our scheduled checks, Magic 8-Ball API leads on measured uptime — Magic 8-Ball API at 100% versus MailCheck.ai at 93.1% 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, Magic 8-Ball API or MailCheck.ai?

MailCheck.ai has the lower median latency in our checks — Magic 8-Ball API responds in 442 ms versus MailCheck.ai at 272 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 Magic 8-Ball API and MailCheck.ai need an API key?

Neither needs a paid key — Magic 8-Ball API 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 Magic 8-Ball API and MailCheck.ai from the browser?

Only MailCheck.ai is browser-friendly — it returns CORS headers over HTTPS. Magic 8-Ball API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Magic 8-Ball API and MailCheck.ai free for commercial use?

Magic 8-Ball API 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.