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Metadapi Zip Code vs Zippopotam.us

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

APIMetadapi Zip CodeNEW—Zippopotam.usNEW—
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 — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Metadapi Zip Code vs Zippopotam.us: common questions

Which is more reliable, Metadapi Zip Code or Zippopotam.us?

On our scheduled checks, Zippopotam.us leads on measured uptime — Metadapi Zip Code at —% versus Zippopotam.us 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 Metadapi Zip Code and Zippopotam.us need an API key?

Zippopotam.us needs no key, while Metadapi Zip Code requires a free API key. If you want to start calling without signup, reach for Zippopotam.us first.

Can I call Metadapi Zip Code and Zippopotam.us from the browser?

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

Are Metadapi Zip Code and Zippopotam.us free for commercial use?

Metadapi Zip Code has unclear commercial terms, and Zippopotam.us 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.