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API Reference - Ideal Postcodes vs CountryStateCity

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

APIAPI Reference - Ideal PostcodesNEW—CountryStateCityNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

API Reference - Ideal Postcodes vs CountryStateCity: common questions

Which is more reliable, API Reference - Ideal Postcodes or CountryStateCity?

On our scheduled checks, CountryStateCity leads on measured uptime — API Reference - Ideal Postcodes at —% versus CountryStateCity 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 API Reference - Ideal Postcodes and CountryStateCity need an API key?

API Reference - Ideal Postcodes needs no key, while CountryStateCity requires a free API key. If you want to start calling without signup, reach for API Reference - Ideal Postcodes first.

Can I call API Reference - Ideal Postcodes and CountryStateCity from the browser?

Yes — both API Reference - Ideal Postcodes and CountryStateCity 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 API Reference - Ideal Postcodes and CountryStateCity free for commercial use?

API Reference - Ideal Postcodes has unclear commercial terms, and CountryStateCity 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.