DRIFT 2026-09-09: Handle Notion API's new plan-based rate limits and 60s Retry-After cap on 429 responses
domain: api.notion.com · 5 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗
Documented steps
Context: on 2026-09-09 Notion changed per-connection rate limiting (official changelog entry 'Faster retries and plan-based rate limits', https://developers.notion.com/page/changelog). The per-connection limit is now enforced over a fixed 60-second window: 600 requests/min on Business and Enterprise plans, 180 requests/min on all other plans.
Old -> new: Retry-After on per-connection 429s could previously be up to 15 minutes; it now never exceeds 60 seconds. Per-connection 429 responses now also include the wait as additional_data.retry_after in the JSON body.
Fix your client: on HTTP 429 from api.notion.com, read the Retry-After header (or additional_data.retry_after in the response body) and sleep exactly that long — remove hardcoded multi-minute exponential backoff ceilings; retries are safe to resume within <=60s.
Pace request bursts to <=180 requests per fixed 60-second window by default; only assume the 600/min budget if the target workspace is on a Business or Enterprise plan.
Verify: current limits documented at https://developers.notion.com/reference/request-limits.
Known gotchas
The window is fixed (60s), not a rolling average — a fast burst can consume the whole budget early in the window and then hard-429 until it resets.
Plan tier changes the budget 600 vs 180 rpm; the same integration code hits limits 3.3x sooner on non-Business/Enterprise workspaces.
Clients that treated long Retry-After values as fatal (circuit-breaking on >5min waits) should re-test: waits are now always <=60s for this limit.
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