API Reference - Ideal Postcodes vs GeoApi

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedLicence Ouverte (Etalab; INSEE/IGN data)
Free tierFree — limits not publishedFree, no API key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

API Reference - Ideal Postcodes vs GeoApi: common questions

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

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

Neither needs a paid key — API Reference - Ideal Postcodes is callable with no signup, and GeoApi is callable with no signup. Both are quick to prototype with; rate limits still apply.

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

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

API Reference - Ideal Postcodes has unclear commercial terms, and GeoApi allows commercial use on its free tier. 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.