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Magic 8-Ball API vs The Calendar

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

APIMagic 8-Ball APINEW—The CalendarNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (US federal list per 5 U.S.C. § 6103)
Free tierFree — limits not publishedFree, no auth (per site)
Rate limitUnpublishedNone stated (site advertises no rate limit)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Magic 8-Ball API vs The Calendar: common questions

Which is more reliable, Magic 8-Ball API or The Calendar?

On our scheduled checks, The Calendar leads on measured uptime — Magic 8-Ball API at —% versus The Calendar at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Magic 8-Ball API and The Calendar need an API key?

Neither needs a paid key — Magic 8-Ball API is callable with no signup, and The Calendar is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Magic 8-Ball API and The Calendar from the browser?

Only The Calendar 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 The Calendar free for commercial use?

Magic 8-Ball API has unclear commercial terms, and The Calendar 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.