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Church Calendar vs FinSignals API

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

APIChurch CalendarNEW—FinSignals APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSnoyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Church Calendar vs FinSignals API: common questions

Which is more reliable, Church Calendar or FinSignals API?

On our scheduled checks, FinSignals API leads on measured uptime — Church Calendar at —% versus FinSignals API 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 Church Calendar and FinSignals API need an API key?

Neither needs a paid key — Church Calendar is callable with no signup, and FinSignals API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Church Calendar and FinSignals API from the browser?

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

Are Church Calendar and FinSignals API free for commercial use?

Church Calendar has unclear commercial terms, and FinSignals API 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.