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Ayrshare vs BulkSMS JSON REST API

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

APIAyrshareNEW—BulkSMS JSON REST APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Ayrshare vs BulkSMS JSON REST API: common questions

Which is more reliable, Ayrshare or BulkSMS JSON REST API?

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

Both ask you to authenticate — Ayrshare uses an API key and BulkSMS JSON REST API uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

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

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

Are Ayrshare and BulkSMS JSON REST API free for commercial use?

Ayrshare has unclear commercial terms, and BulkSMS JSON REST 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.