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Notion vs Sheetsu

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

APINotionREACHABLE—SheetsuNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthoauthapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierOAuth — some read routes may be publicFree tier — key may be required
Rate limitUnpublished90 req/window · 89 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

Notion vs Sheetsu: common questions

Which is more reliable, Notion or Sheetsu?

On our scheduled checks, Sheetsu leads on measured uptime — Notion at —% versus Sheetsu at —% 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 Notion and Sheetsu need an API key?

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

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

Are Notion and Sheetsu free for commercial use?

Notion has unclear commercial terms, and Sheetsu 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.