# Notion: Notion MCP query_data_source tool is temporarily unavailable in Claude clients

- Provider: [Notion](https://outages.cc/notion.md)
- Type: Incident
- State: Resolved
- Worst impact: Partial outage
- Started: 2026-10-22 03:23 UTC
- Resolved: 2026-10-22 04:42 UTC (lasted 1 h 19 min)
- Official update: https://www.notion-status.com

## Updates from Notion

### resolved, 2026-10-22 04:42 UTC

This issue has been resolved. The Notion MCP query_data_source tool is available again in Claude clients.

### investigating, 2026-10-22 03:33 UTC

The Notion MCP query_data_source tool is temporarily unavailable in Claude clients.

### investigating, 2026-10-22 03:23 UTC

The Notion MCP query_data_source tool is temporarily unavailable in Claude clients.