Is Notion down? › Outage history › Oct 22, 2026
Notion partial outage on Oct 22, 2026: what happened
On Oct 22, 2026, the Notion status page reported "Notion MCP query_data_source tool is temporarily unavailable in Claude clients". About 1 hour 19 min: from Oct 22, 2026, 03:23 UTC to Oct 22, 2026, 04:42 UTC, by the official start and resolution times.
Notion right now
At our last refresh (Oct 22, 2026, 12:35 UTC) Notion was up: All Systems Operational.
- Started
- Oct 22, 2026, 03:23 UTC
- Resolved
- Oct 22, 2026, 04:42 UTC
- Duration
- 1 hour 19 min
- Official impact
- Major
- Source
- Notion MCP query_data_source tool is temporarily unavailable in Claude clients on the Notion status page
The Notion status page rated the impact "Major": a partial outage. Some parts or some users were affected; it was not a complete outage.
What caused the Notion partial outage?
The Notion status page has not published a cause. Its updates describe the symptoms only.
When was it fixed?
The Notion status page marked it resolved at Oct 22, 2026, 04:42 UTC, 1 hour 19 min after it started. Its resolution note: "This issue has been resolved. The Notion MCP query_data_source tool is available again in Claude clients."
Timeline of official updates
Every update the Notion status page posted, oldest first. Times are UTC.
Oct 22, 2026, 03:23 UTC investigating
The Notion MCP query_data_source tool is temporarily unavailable in Claude clients.
Oct 22, 2026, 03:33 UTC investigating
The Notion MCP query_data_source tool is temporarily unavailable in Claude clients.
Oct 22, 2026, 04:42 UTC resolved
This issue has been resolved. The Notion MCP query_data_source tool is available again in Claude clients.
What our checks saw
- Our once-a-minute checks recorded Notion as degraded from Oct 22, 2026, 03:23 UTC to 04:43 UTC (1 hour 20 min, read from the official status page).
Notion partial outage questions
What caused the Notion partial outage on Oct 22, 2026?
The Notion status page has not published a cause.
When was the Notion partial outage on Oct 22, 2026 fixed?
The Notion status page marked it resolved at Oct 22, 2026, 04:42 UTC, 1 hour 19 min after it started. Its resolution note: "This issue has been resolved. The Notion MCP query_data_source tool is available again in Claude clients."
How long did the Notion partial outage last?
About 1 hour 19 min: from Oct 22, 2026, 03:23 UTC to Oct 22, 2026, 04:42 UTC, by the official start and resolution times.
Was Notion completely down?
No. The Notion status page rated the impact "Major": a partial outage. Some parts or some users were affected; it was not a complete outage.
Other recent Notion incidents
- Security update: Preventative certificate security measures Oct 20, 2026, 19:00 UTC, ongoing, 41 hours 35 min so far
- Unable to install connections created by other workspace members Oct 20, 2026, 18:46 UTC, 19 hours 57 min
- Some Notion Agent requests may stop before completion Oct 18, 2026, 11:54 UTC, 3 hours 57 min
- Cursor-powered Custom Agents unable to load Notion tools Oct 14, 2026, 22:55 UTC, 3 hours 39 min
- Form submission issues (resolved) Oct 13, 2026, 21:19 UTC, 7 hours 49 min
- Degraded performance in Notion and the Notion API Oct 13, 2026, 17:17 UTC, 8 days 2 hours
Full Notion outage history and biggest outages → · Recent outages across all services →
Quotes are the Notion status page's own words, from the official incident. Is It Up or Down is independent and not affiliated with Notion. Times are UTC.