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ConvertHub API vs Notion

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

APIConvertHub APINEW—NotionREACHABLE—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyoauth
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredOAuth — some read routes may be public
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ConvertHub API vs Notion: common questions

Which is more reliable, ConvertHub API or Notion?

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

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

Can I call ConvertHub API and Notion from the browser?

Neither sends browser-friendly CORS headers reliably, so call ConvertHub API and Notion from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are ConvertHub API and Notion free for commercial use?

ConvertHub API has unclear commercial terms, and Notion 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.