Zettelkasten MCP

What it does

Connects your AI assistant to a personal Zettelkasten knowledge base. It enables the creation of atomic notes—discrete units of knowledge—that are bidirectionally linked to form a rich, emergent knowledge graph. It uses a dual-storage architecture: Markdown files as the source of truth for human readability and a SQLite database for high-performance AI traversal.

Tools

• zk_create_note: Create a new atomic note with title and tags.
• zk_get_note: Retrieve a specific note by ID or title.
• zk_update_note: Modify note content or metadata.
• zk_create_link: Establish semantic links (e.g., extends, refines, contradicts) between notes.
• zk_search_notes: Full-text search across content, tags, and links.
• zk_find_similar_notes: Identify related concepts within the graph.
• zk_rebuild_index: Sync the SQLite index with updated Markdown files.

Installation

Add this to your claude_desktop_config.json:

{
  "mcpServers": {
    "zettelkasten": {
      "command": "/absolute/path/to/zettelkasten-mcp/.venv/bin/python",
      "args": ["-m", "zettelkasten_mcp.main"],
      "env": {
        "ZETTELKASTEN_NOTES_DIR": "/absolute/path/to/zettelkasten-mcp/data/notes",
        "ZETTELKASTEN_DATABASE_PATH": "/absolute/path/to/zettelkasten-mcp/data/db/zettelkasten.db"
      }
    }
  }
}

Supported hosts

• Claude Desktop