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All changes / Notion MCP

Silent mcp

notion-search became keyword-only and stopped searching connected apps; semantic search moved to a new notion-ai-search tool; partly reversed Sep 10 for connections that can use AI search

Took effect · MCP tool notion-search → notion-search (keyword) + notion-ai-search (semantic)

Reviewed against the vendor source on Sep 24, 2026 (AI-assisted review). Key facts are re-checked against the source daily.

What changes

notion-search now matches short, specific terms in Notion only, with no Slack, Google Drive, or Jira results. Agents keep calling it and get narrower results with no error; from Sep 10 this still holds for connections that can't use AI search and for calls with exact filters, an empty query, or a non-relevance sort. notion-ai-search needs Notion AI. The old content_search_mode parameter still works but is no longer advertised (since Sep 10, content_search_mode "ai_search" returns a permission error on connections that can't use notion-ai-search), so agents built from the tool list won't find it. A Sep 10 follow-up routes keyword content queries on notion-search to AI search when the connection allows it, so behavior now depends on plan and tool selection.

Silent: No error. Behavior, results, or cost change quietly.

What to do

Call notion-fetch with id self and read current_tool_access.ai_search.status (or call notion-get-tool-access); route content search to notion-ai-search when available; add an eval that expects a cross-source result.

Strings to search for

notion-searchcontent_search_mode

Source

https://developers.notion.com/page/changelog