TriliumNext Notes' MCP Server

⚠️ DISCLAIMER: This is a prototype for https://github.com/TriliumNext/Notes/issues/705. Suggested only for developer use. Please backup your Trilium notes before using this tool. ⚠️

A model context protocol server for TriliumNext Notes. This server provides tools to interact with your Trilium Notes instance through MCP. You can use this MCP with triliumnext-skills.

Quick Start

Make sure to set up your environment variables first:

TRILIUM_API_URL (default: http://localhost:8080/etapi)
TRILIUM_API_TOKEN (required, get this from your Trilium Notes settings)
PERMISSIONS (optional, default='READ;WRITE', where READ grants access to search_notes, get_note, resolve_note_id, and read_attributes, and WRITE grants access to create_note, update_note, delete_note, and manage_attributes)
VERBOSE (optional, default='false', which if true will print verbose debugging logs)

Installation

Below are the installation guide for this MCP on different MCP clients, such as Claude Desktop, Claude Code, Cursor, Cline, etc.

Claude Desktop

Add to your Claude Desktop configuration:

{
  "mcpServers": {
    "triliumnext-mcp": {
      "command": "npx",
      "args": ["triliumnext-mcp"],
      "env": {
        "TRILIUM_API_URL": "http://localhost:8080/etapi",
        "TRILIUM_API_TOKEN": "<YOUR_TRILIUM_API_TOKEN>",
        "PERMISSIONS": "READ;WRITE"
      }
    }
  }
}

Claude Code

claude mcp add triliumnext-mcp \
  -e TRILIUM_API_URL=http://localhost:8080/etapi \
  -e TRILIUM_API_TOKEN=<YOUR_TRILIUM_API_TOKEN> \
  -e PERMISSIONS='READ;WRITE' \
  -- npx triliumnext-mcp

Note: Increase the MCP startup timeout to 1 minutes and MCP tool execution timeout to about 5 minutes by updating ~\.claude\settings.json as follows:

{
  "env": {
    "MCP_TIMEOUT": "60000",
    "MCP_TOOL_TIMEOUT": "300000"
  }
}

Cursor

Go to: Settings -> Cursor Settings -> MCP -> Add new global MCP server

Pasting the following configuration into your Cursor ~/.cursor/mcp.json file is the recommended approach. You may also install in a specific project by creating .cursor/mcp.json in your project folder. See Cursor MCP docs for more info.

{
  "mcpServers": {
    "triliumnext-mcp": {
      "command": "npx",
      "args": ["triliumnext-mcp"],
      "env": {
        "TRILIUM_API_URL": "http://localhost:8080/etapi",
        "TRILIUM_API_TOKEN": "<YOUR_TRILIUM_API_TOKEN>",
        "PERMISSIONS": "READ;WRITE"
      }
    }
  }
}

Cline

Cline uses a JSON configuration file to manage MCP servers. To integrate the provided MCP server configuration:

Open Cline and click on the MCP Servers icon in the top navigation bar.
Select the Installed tab, then click Advanced MCP Settings.
In the cline_mcp_settings.json file, add the following configuration:

(i) Using Google AI Studio Provider

{
  "mcpServers": {
    "timeout": 300, 
    "type": "stdio",
    "triliumnext-mcp": {
      "command": "npx",
      "args": ["triliumnext-mcp"],
      "env": {
        "TRILIUM_API_URL": "http://localhost:8080/etapi",
        "TRILIUM_API_TOKEN": "<YOUR_TRILIUM_API_TOKEN>",
        "PERMISSIONS": "READ;WRITE"
      }
    }
  }
}

Other MCP clients

The server uses stdio transport and follows the standard MCP protocol. It can be integrated with any MCP-compatible client by running:

npx triliumnext-mcp

Available Tools

The server provides the following tools for note management:

Search & Discovery Tools

search_notes - Unified search with comprehensive filtering capabilities including keyword search, date ranges, field-specific searches, attribute searches, note properties, template-based searches, note type filtering, MIME type filtering, and hierarchy navigation.
resolve_note_id - Find a note's ID by its title. Essential for getting a note's ID to use with other tools.

Note Management Tools

get_note - Retrieve a note and its content by ID. Can also be used with regex to extract specific patterns from the content.
create_note - Create a new note. Supports 9 note types and allows creating attributes (labels and relations) in the same step.
update_note - Updates a note's title or content. Requires a mode ('overwrite' or 'append') to specify the update type and an expectedHash to prevent conflicts.
delete_note - Permanently delete a note (⚠️ cannot be undone).

Attribute Management Tools

read_attributes - Read all attributes (labels and relations) for a given note.
manage_attributes - Create, update, or delete attributes on a note. Supports batch creation.

📖 Detailed Usage: See Note Management Guide for revision control strategy and best practices.

Example Queries

Search & Discovery

"Find my most recent 10 notes about 'n8n' since the beginning of 2024"
"Show me notes I've edited in the last 7 days"
"List all notes under 'n8n Template' folder, including subfolders"

Content Management

"Add today's update to my work log" (uses update_note with mode: 'append')
"Replace this draft with the final version" (uses update_note with mode: 'overwrite')
"Create a new note called 'Weekly Review' in my journal folder"

📖 More Examples: See User Query Examples for comprehensive usage scenarios.

Documentation

Note Management Guide - Safe content editing with revision control
User Query Examples - Natural language query examples
Search Query Examples - Advanced search syntax and filters

Development

If you want to contribute or modify the server:

# Clone the repository
git clone https://github.com/tan-yong-sheng/triliumnext-mcp.git

# Install dependencies
npm install

# Build the server
npm run build

# For development with auto-rebuild
npm run watch

Contributing

Contributions are welcome! If you are looking to improve the server, please familiarize yourself with the official Trilium Search DSL documentation and our internal Search Query Examples to understand how search queries are constructed.

Please feel free to open an issue or submit a pull request.