shipapis
StarSubmit an APISubmit API

BulkSMS JSON REST API vs Church Calendar

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

APIBulkSMS JSON REST APINEW—Church CalendarNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesno
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

BulkSMS JSON REST API vs Church Calendar: common questions

Which is more reliable, BulkSMS JSON REST API or Church Calendar?

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

Church Calendar needs no key, while BulkSMS JSON REST API requires a free API key. If you want to start calling without signup, reach for Church Calendar first.

Can I call BulkSMS JSON REST API and Church Calendar from the browser?

Neither sends browser-friendly CORS headers reliably, so call BulkSMS JSON REST API and Church Calendar from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are BulkSMS JSON REST API and Church Calendar free for commercial use?

BulkSMS JSON REST API has unclear commercial terms, and Church 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.