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HackMyIP vs OpenPLZ API

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

APIHackMyIPNEW—OpenPLZ APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseUnverifiedUnverified
Free tierCompletely free — no API key, no signupFree — limits not published
Rate limit100 req/windowUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

HackMyIP vs OpenPLZ API: common questions

Which is more reliable, HackMyIP or OpenPLZ API?

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

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

Can I call HackMyIP and OpenPLZ API from the browser?

Yes — both HackMyIP and OpenPLZ API 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 HackMyIP and OpenPLZ API free for commercial use?

HackMyIP allows commercial use on its free tier, and OpenPLZ API 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.