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Notion vs Poptin API

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

APINotionREACHABLE100Poptin APIREACHABLE100
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms352698
P95 · ms49801705
AuthoauthapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified
Free tierOAuth — some read routes may be public
Rate limitUnpublished120 req/window · 119 remaining
In directory since2026-07-052026-10-04
operationalpartialdownno data

Notion vs Poptin API: common questions

Which is more reliable, Notion or Poptin API?

Both are neck-and-neck — Notion and Poptin API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Notion or Poptin API?

Notion has the lower median latency in our checks — Notion responds in 352 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 Notion and Poptin API need an API key?

Both ask you to authenticate — Notion uses OAuth 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 Notion and Poptin API from the browser?

Yes — both Notion 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 Notion and Poptin API free for commercial use?

Notion 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.