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adresse.data.gouv.fr vs Zipcodestack

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

APIadresse.data.gouv.frNEW—ZipcodestackNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseLicence Ouverte / ODbL (Base Adresse Nationale)Unverified
Free tierFree, no API keyFree tier — API key required
Rate limit50 requests/second per IP (documented)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

adresse.data.gouv.fr vs Zipcodestack: common questions

Which is more reliable, adresse.data.gouv.fr or Zipcodestack?

On our scheduled checks, Zipcodestack leads on measured uptime — adresse.data.gouv.fr at —% versus Zipcodestack 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 adresse.data.gouv.fr and Zipcodestack need an API key?

adresse.data.gouv.fr needs no key, while Zipcodestack requires a free API key. If you want to start calling without signup, reach for adresse.data.gouv.fr first.

Can I call adresse.data.gouv.fr and Zipcodestack from the browser?

Yes — both adresse.data.gouv.fr and Zipcodestack 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 adresse.data.gouv.fr and Zipcodestack free for commercial use?

adresse.data.gouv.fr allows commercial use on its free tier, and Zipcodestack 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.