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The SMS Works API vs Disify

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

APIThe SMS Works APIUNMONITORED—DisifyNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
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

The SMS Works API vs Disify: common questions

Which is more reliable, The SMS Works API or Disify?

Only Disify is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do The SMS Works API and Disify need an API key?

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

Can I call The SMS Works API and Disify from the browser?

Yes — both The SMS Works API and Disify send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are The SMS Works API and Disify free for commercial use?

The SMS Works API has unclear commercial terms, and Disify 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.