Obsidian Todos MCP Server

Model Context Protocol (MCP) server that provides AI assistants with direct access to Obsidian todos through the Local REST API.

Features

• 🔍 List todos - Get all incomplete todos from your vault
• ➕ Add todos - Create new todos in today's daily note
• ✏️ Update todos - Modify existing todos or mark them complete
• 📊 Get stats - View todo statistics by file

Prerequisites

1. Obsidian with the following plugins installed and enabled:

   • Local REST API
   • Dataview
   • Todos REST API (this plugin)

2. Node.js 18+ installed

Installation

From npm (coming soon)

npm install -g obsidian-todos-mcp-server

From source

cd mcp-server
npm install
npm run build

Configuration

Environment Variables

• OBSIDIAN_API_URL - Base URL for the REST API (default: http://localhost:27124)
• OBSIDIAN_API_KEY - API key if authentication is enabled

Claude Desktop Configuration

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "obsidian-todos": {
      "command": "npx",
      "args": ["-y", "obsidian-todos-mcp-server"],
      "env": {
        "OBSIDIAN_API_URL": "http://localhost:27124"
      }
    }
  }
}

Or use the direct binary name after npm link:

{
  "mcpServers": {
    "obsidian-todos": {
      "command": "obsidian-todos-mcp",
      "env": {
        "OBSIDIAN_API_URL": "http://localhost:27124"
      }
    }
  }
}

Or if running from source:

{
  "mcpServers": {
    "obsidian-todos": {
      "command": "node",
      "args": ["/path/to/obsidian-todos-api/mcp-server/dist/index.js"],
      "env": {
        "OBSIDIAN_API_URL": "http://localhost:27124"
      }
    }
  }
}

Available Tools

list_todos

Lists all incomplete todos from your Obsidian vault.

Example:

// No parameters needed
await use_mcp_tool({
  server_name: "obsidian-todos",
  tool_name: "list_todos",
  arguments: {}
});

add_todo

Adds a new todo to today's daily note.

Parameters:

• text (string, required) - The todo text

Example:

await use_mcp_tool({
  server_name: "obsidian-todos",
  tool_name: "add_todo",
  arguments: {
    text: "Review pull requests"
  }
});

update_todo

Updates an existing todo (mark complete, change text, etc.).

Parameters:

• file (string, required) - Path to file containing the todo
• line (number, required) - Line number of the todo (0-indexed)
• text (string, optional) - New text for the todo
• completed (boolean, optional) - Mark as complete/incomplete

Example:

await use_mcp_tool({
  server_name: "obsidian-todos",
  tool_name: "update_todo",
  arguments: {
    file: "Daily/2025-10-31.md",
    line: 5,
    completed: true
  }
});

get_todo_stats

Get statistics about your todos.

Example:

await use_mcp_tool({
  server_name: "obsidian-todos",
  tool_name: "get_todo_stats",
  arguments: {}
});

Development

# Watch mode for development
npm run dev

# Build for production
npm run build

# Test the server
echo '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' | node dist/index.js

Troubleshooting

Connection Issues

1. Ensure Obsidian Local REST API is running
2. Check the API URL is correct (default: http://localhost:27124)
3. Verify the Todos REST API plugin is enabled in Obsidian

Authentication Errors

If you have authentication enabled in Local REST API:

1. Set the OBSIDIAN_API_KEY environment variable
2. Or update your Claude Desktop config with the API key

License

MIT