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Parkleitsystem API vs SLF

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

APIParkleitsystem APINEW—SLFNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — static file, no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Parkleitsystem API vs SLF: common questions

Which is more reliable, Parkleitsystem API or SLF?

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

Neither needs a paid key — Parkleitsystem API is callable with no signup, and SLF is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Parkleitsystem API and SLF from the browser?

Only SLF 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 SLF free for commercial use?

Parkleitsystem API has unclear commercial terms, and SLF 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.