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Cutt.ly vs Poptin API

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

APICutt.lyDEAD0Poptin APIREACHABLE100
Uptime · 30d
Uptime · 90d0.0%100%
Uptime · 30d0.0%100%
P50 · ms—698
P95 · ms—1705
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified
Free tierFree tier — API key required
Rate limitUnpublished120 req/window · 119 remaining
In directory since2026-07-052026-10-04
operationalpartialdownno data

Cutt.ly vs Poptin API: common questions

Which is more reliable, Cutt.ly or Poptin API?

On our scheduled checks, Poptin API leads on measured uptime — Cutt.ly at 0.0% versus Poptin API at 100% 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 Cutt.ly and Poptin API need an API key?

Both ask you to authenticate — Cutt.ly uses an API key and Poptin API uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Cutt.ly and Poptin API from the browser?

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

Are Cutt.ly and Poptin API free for commercial use?

Cutt.ly has unclear commercial terms, and Poptin API 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.