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OpenPLZ API vs Ziptastic

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

APIOpenPLZ APINEW—ZiptasticNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

OpenPLZ API vs Ziptastic: common questions

Which is more reliable, OpenPLZ API or Ziptastic?

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

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

Can I call OpenPLZ API and Ziptastic from the browser?

Yes — both OpenPLZ API and Ziptastic send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are OpenPLZ API and Ziptastic free for commercial use?

OpenPLZ API has unclear commercial terms, and Ziptastic 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.