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MobileAPI vs staffSign

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

APIMobileAPINEW—staffSignNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnono
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

MobileAPI vs staffSign: common questions

Which is more reliable, MobileAPI or staffSign?

On our scheduled checks, staffSign leads on measured uptime — MobileAPI at —% versus staffSign 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 MobileAPI and staffSign need an API key?

Both ask you to authenticate — MobileAPI uses an API key and staffSign 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 MobileAPI and staffSign from the browser?

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

Are MobileAPI and staffSign free for commercial use?

MobileAPI has unclear commercial terms, and staffSign 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.