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OpenHolidays API vs The Colony

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

APIOpenHolidays APINEW—The ColonyNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

OpenHolidays API vs The Colony: common questions

Which is more reliable, OpenHolidays API or The Colony?

On our scheduled checks, The Colony leads on measured uptime — OpenHolidays API at —% versus The Colony 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 OpenHolidays API and The Colony need an API key?

OpenHolidays API needs no key, while The Colony requires a free API key. If you want to start calling without signup, reach for OpenHolidays API first.

Can I call OpenHolidays API and The Colony from the browser?

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

Are OpenHolidays API and The Colony free for commercial use?

OpenHolidays API has unclear commercial terms, and The Colony 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.