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ClickSend REST API v3 vs Administrative Divisions DB

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

APIClickSend REST API v3UNMONITORED—Administrative Divisions DBNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (see repo)
Free tierFree tier — API key requiredFree, no API key required (static JSON via CDN)
Rate limitUnpublishedNone (static files served over CDN)
In directory since2026-07-052026-07-05
operationalpartialdownno data

ClickSend REST API v3 vs Administrative Divisions DB: common questions

Which is more reliable, ClickSend REST API v3 or Administrative Divisions DB?

Only Administrative Divisions DB is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do ClickSend REST API v3 and Administrative Divisions DB need an API key?

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

Can I call ClickSend REST API v3 and Administrative Divisions DB from the browser?

Yes — both ClickSend REST API v3 and Administrative Divisions DB 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 Administrative Divisions DB free for commercial use?

ClickSend REST API v3 has unclear commercial terms, and Administrative Divisions DB 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.