# Notion outage on 22 October 2026

> Notion's status page reported a major outage on 22 October 2026: “Notion MCP query_data_source tool is temporarily unavailable in Claude clients”. It lasted 1 h 19 min, from 03:23 to 04:42 UTC.

- Service: [Notion](https://stackpulse.app/services/notion.md)
- Severity: major_outage
- Title on the status page: Notion MCP query_data_source tool is temporarily unavailable in Claude clients
- Started: 2026-10-22 03:23 UTC
- Ended: 2026-10-22 04:42 UTC
- Lasted: 1 h 19 min
- Incident open on the status page: 03:23–04:42 UTC
- Page: https://stackpulse.app/services/notion/outages/2026-10-22-0323

## At the same time

- [npm](https://stackpulse.app/services/npm.md): major_outage from 2026-10-22 02:33 UTC
- [Musixmatch](https://stackpulse.app/services/musixmatch.md): issue from 2026-10-22 02:33 UTC
- [Asana](https://stackpulse.app/services/asana.md): issue from 2026-10-22 03:51 UTC
- [Claude](https://stackpulse.app/services/claude.md): issue from 2026-10-22 03:51 UTC
- [Supabase](https://stackpulse.app/services/supabase.md): major_outage from 2026-10-22 03:53 UTC
- [Alura](https://stackpulse.app/services/alura.md): major_outage from 2026-10-22 04:34 UTC

Problems at the same time are a clue, never proof that one caused another.

Stackpulse isn't affiliated with Notion.