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Parkleitsystem API vs US ZipCode

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

APIParkleitsystem APINEW—US ZipCodeNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Parkleitsystem API vs US ZipCode: common questions

Which is more reliable, Parkleitsystem API or US ZipCode?

On our scheduled checks, US ZipCode leads on measured uptime — Parkleitsystem API at —% versus US ZipCode 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 Parkleitsystem API and US ZipCode need an API key?

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

Can I call Parkleitsystem API and US ZipCode from the browser?

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

Are Parkleitsystem API and US ZipCode free for commercial use?

Parkleitsystem API has unclear commercial terms, and US ZipCode 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.