MCP or Not?

Draft: some verdicts here are not yet reviewed. Hidden from search engines.

Best list · Updated

The 5 best MCP servers for notes and knowledge

Note apps, docs and research tools your AI can search and write to.

  1. 1NotionWork & productivity · Checked Oct 2026
    • Official server from Notion (hosted, OAuth sign-in)
    • Listed as a Claude connector
    • 8 documented tools, 5 that can change data
    • 1 safety flag to review
    OfficialFull verdict →
  2. 2GranolaWork & productivity · Checked Oct 2026
    • Official server from Granola (hosted, OAuth sign-in)
    • Listed as a Claude connector
    • 6 documented tools, 1 that can change data
    OfficialFull verdict →
  3. 3Google DocsWork & productivity · Checked Oct 2026
    • Official server from Google (hosted, OAuth sign-in)
    • 2 documented tools, 1 that can change data
    • 1 safety flag to review
    OfficialFull verdict →
  4. 4ObsidianWork & productivity · Checked Oct 2026
    • mcp-obsidian (MarkusPfundstein) by MarkusPfundstein (runs locally, API key or token)
    • 7 documented tools, 3 that can change data
    • 3 safety flags to review
    Community onlyFull verdict →
  5. 5ZoteroData & analytics · Checked Oct 2026
    • zotero-mcp (54yyyu) by 54yyyu (runs locally, no sign-in)
    • 8 documented tools, 4 that can change data
    • 2 safety flags to review
    Community onlyFull verdict →

How we ranked these

Nobody paid to be here. The order comes from each tool’s verdict: an official server from the vendor ranks first, then how central the tool is to the job, a listed Claude connector, then a hosted server with OAuth sign-in that is generally available, then the number of documented tools. Safety flags push a tool down. Every fact links back to a dated verdict with its sources.

How we check a server