Keyvalue vs Poptin API
Same instrument, two spec sheets — measured, not claimed.
Keyvalue vs Poptin API: common questions
Which is more reliable, Keyvalue or Poptin API?
On our scheduled checks, Poptin API leads on measured uptime — Keyvalue at 92.1% 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.
Which is faster, Keyvalue or Poptin API?
Keyvalue has the lower median latency in our checks — Keyvalue responds in 427 ms versus Poptin API at 698 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do Keyvalue and Poptin API need an API key?
Keyvalue needs no key, while Poptin API requires a free API key. If you want to start calling without signup, reach for Keyvalue first.
Can I call Keyvalue and Poptin API from the browser?
Yes — both Keyvalue and Poptin API 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 Keyvalue and Poptin API free for commercial use?
Keyvalue 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.