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adresse.data.gouv.fr vs SLF

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

APIadresse.data.gouv.frHEALTHY90SLFHEALTHY99
Uptime · 30d
Uptime · 90d99.44%100%
Uptime · 30d98.3%100%
P50 · ms461145
P95 · ms2486668
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Rate limit50 requests/second per IP (documented)Unpublished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 99.44% versus SLF at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, adresse.data.gouv.fr or SLF?

SLF has the lower median latency in our checks — adresse.data.gouv.fr responds in 461 ms versus SLF at 145 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

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.