adresse.data.gouv.fr vs SLF

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

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Rate limit50 requests/second per IP (documented)Unpublished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

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

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

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

Neither needs a paid key — adresse.data.gouv.fr 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 adresse.data.gouv.fr and SLF from the browser?

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

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