Semantic Notes Vault MCP

What it does

This MCP server transforms an Obsidian vault into a connected knowledge graph for AI assistants. Instead of simple file access, it provides semantic agency, allowing AI to explore concepts, follow backlinks, and synthesize information across your entire vault using graph traversal and semantic search.

Tools

• vault: Perform file operations including list, read, create, search, and move.
• edit: Modify content via window editing, appending, or patching sections.
• view: View files, windows, and the active note.
• graph: Traverse links, find paths, and analyze connections between notes.
• workflow: Get contextual hints and suggest next actions based on vault state.
• dataview: Execute DQL queries (requires Obsidian Dataview plugin).
• bases: Query and export Obsidian Bases database views.
• system: Manage server status and fetch web content.

Installation

Install the "Semantic Notes Vault MCP" plugin via the Obsidian Community Plugins directory. Then, add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "obsidian-vault": {
      "transport": {
        "type": "http",
        "url": "http://localhost:3001/mcp",
        "headers": {
          "Authorization": "Bearer YOUR_API_KEY"
        }
      }
    }
  }
}

Supported hosts

• Claude Desktop
• Claude Code
• Continue.dev
• VS Code Copilot