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Slack vs Kickbox

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

APISlackUNMONITORED—KickboxNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — open disposable-address check
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Slack vs Kickbox: common questions

Which is more reliable, Slack or Kickbox?

Only Kickbox 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 Slack and Kickbox need an API key?

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

Can I call Slack and Kickbox from the browser?

Yes — both Slack and Kickbox 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 Slack and Kickbox free for commercial use?

Slack has unclear commercial terms, and Kickbox 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.