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GeoApi vs IsItWater

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

APIGeoApiNEW—IsItWaterNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseLicence Ouverte (Etalab; INSEE/IGN data)Unverified
Free tierFree, no API keyFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

GeoApi vs IsItWater: common questions

Which is more reliable, GeoApi or IsItWater?

On our scheduled checks, IsItWater leads on measured uptime — GeoApi at —% versus IsItWater 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 GeoApi and IsItWater need an API key?

GeoApi needs no key, while IsItWater requires a free API key. If you want to start calling without signup, reach for GeoApi first.

Can I call GeoApi and IsItWater from the browser?

Only GeoApi is browser-friendly — it returns CORS headers over HTTPS. IsItWater needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are GeoApi and IsItWater free for commercial use?

GeoApi allows commercial use on its free tier, and IsItWater 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.