ISO 3166 Updates API vs VA Facilities

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms14021386
P95 · ms25263391
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limit500 req/windowUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ISO 3166 Updates API vs VA Facilities: common questions

Which is more reliable, ISO 3166 Updates API or VA Facilities?

Both are neck-and-neck — ISO 3166 Updates API and VA Facilities 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, ISO 3166 Updates API or VA Facilities?

VA Facilities has the lower median latency in our checks — ISO 3166 Updates API responds in 1402 ms versus VA Facilities at 1386 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 ISO 3166 Updates API and VA Facilities need an API key?

ISO 3166 Updates API needs no key, while VA Facilities requires a free API key. If you want to start calling without signup, reach for ISO 3166 Updates API first.

Can I call ISO 3166 Updates API and VA Facilities from the browser?

Only ISO 3166 Updates API is browser-friendly — it returns CORS headers over HTTPS. VA Facilities needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are ISO 3166 Updates API and VA Facilities free for commercial use?

ISO 3166 Updates API has unclear commercial terms, and VA Facilities 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.