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CarsXE vs PostalPinCode

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

APICarsXENEW—PostalPinCodeNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — no key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CarsXE vs PostalPinCode: common questions

Which is more reliable, CarsXE or PostalPinCode?

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

PostalPinCode needs no key, while CarsXE requires a free API key. If you want to start calling without signup, reach for PostalPinCode first.

Can I call CarsXE and PostalPinCode from the browser?

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

Are CarsXE and PostalPinCode free for commercial use?

CarsXE has unclear commercial terms, and PostalPinCode 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.