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Administrative Divisions DB vs ISO 3166-2 API

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

APIAdministrative Divisions DBHEALTHY100ISO 3166-2 APIHEALTHY84
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms391056
P95 · ms11142865
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (see repo)Unverified
Free tierFree, no API key required (static JSON via CDN)Free — limits not published
Rate limitNone (static files served over CDN)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Administrative Divisions DB vs ISO 3166-2 API: common questions

Which is more reliable, Administrative Divisions DB or ISO 3166-2 API?

Both are neck-and-neck — Administrative Divisions DB and ISO 3166-2 API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Administrative Divisions DB or ISO 3166-2 API?

Administrative Divisions DB has the lower median latency in our checks — Administrative Divisions DB responds in 39 ms versus ISO 3166-2 API at 1056 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 Administrative Divisions DB and ISO 3166-2 API need an API key?

Neither needs a paid key — Administrative Divisions DB is callable with no signup, and ISO 3166-2 API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Administrative Divisions DB and ISO 3166-2 API from the browser?

Yes — both Administrative Divisions DB and ISO 3166-2 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 Administrative Divisions DB and ISO 3166-2 API free for commercial use?

Administrative Divisions DB has unclear commercial terms, and ISO 3166-2 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.