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ClickSend REST API v3 vs GeoApi

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

APIClickSend REST API v3NEW—GeoApiNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedLicence Ouverte (Etalab; INSEE/IGN data)
Free tierFree tier — API key requiredFree, no API key
Rate limit6000 req/window · 5999 remaining · resets 1Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ClickSend REST API v3 vs GeoApi: common questions

Which is more reliable, ClickSend REST API v3 or GeoApi?

On our scheduled checks, GeoApi leads on measured uptime — ClickSend REST API v3 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 ClickSend REST API v3 and GeoApi need an API key?

GeoApi needs no key, while ClickSend REST API v3 requires a free API key. If you want to start calling without signup, reach for GeoApi first.

Can I call ClickSend REST API v3 and GeoApi from the browser?

Yes — both ClickSend REST API v3 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 ClickSend REST API v3 and GeoApi free for commercial use?

ClickSend REST API v3 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.