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Sabre for Developers vs Smartcar

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

APISabre for DevelopersNEW—SmartcarNEW—
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

Sabre for Developers vs Smartcar: common questions

Which is more reliable, Sabre for Developers or Smartcar?

On our scheduled checks, Smartcar leads on measured uptime — Sabre for Developers at —% versus Smartcar 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 Sabre for Developers and Smartcar need an API key?

Both ask you to authenticate — Sabre for Developers uses an API key and Smartcar 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 Sabre for Developers and Smartcar from the browser?

Only Sabre for Developers is browser-friendly — it returns CORS headers over HTTPS. Smartcar needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Sabre for Developers and Smartcar free for commercial use?

Sabre for Developers has unclear commercial terms, and Smartcar 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.