Jrnl MCP
An MCP server that provides read-only access to the jrnl command-line diary tool, supporting queries of diary content, tags, and statistical information through the Claude desktop application.
2 points
7.2K

What is the jrnl MCP Server?

The jrnl MCP Server is a bridge service that allows the AI assistant Claude to access your jrnl diary content through a secure protocol. It does not store your diary but only provides a query interface, enabling you to retrieve diary information by communicating with the AI in natural language.

How to use the jrnl MCP Server?

After installation and configuration, you can directly ask questions about your diary in the Claude chat interface, such as 'What diary entries did I write last week?' or 'Show all entries with the @work tag'. Claude will obtain the results through the MCP server and present them to you.

Use cases

It is particularly useful when you want to quickly find diary content, analyze writing habits, or统计 tag usage through the AI, eliminating the need to manually browse through diary files.

Main features

Diary search
Supports searching for diary entries by various criteria such as date range, tags, and keywords.
Tag management
View all tags and their usage frequencies, and analyze tag correlations.
Diary statistics
Obtain analysis data such as diary writing frequency and word count statistics.
Multi-journal support
Allows you to switch between different jrnl diaries for queries.
Advantages
Privacy protection: Diary content always remains local and is not uploaded to the cloud.
Natural language interaction: Query your diary in everyday language through Claude.
Rich features: Supports various query methods such as search, statistics, and tag analysis.
Security: Read-only access, and the AI cannot modify your diary.
Limitations
Requires pre-installation and configuration of the jrnl and Node.js environments.
Currently only supports integration with the Claude desktop version.
Query functions are limited by the capabilities of jrnl itself.

How to use

Installation preparation
Ensure that Node.js 18+ and the jrnl command-line diary tool are installed.
Install the MCP server
Install and globally link the jrnl-mcp command via npm.
Configure Claude
Add the jrnl MCP server settings to the Claude configuration file.
Start using
After restarting Claude, you can query your diary content in natural language.

Usage examples

Find diaries within a specific time period
Want to review all diary entries written last month.
Find diaries with specific tags
Find all diaries related to work.
Analyze diary habits
Understand your own diary writing frequency.

Frequently Asked Questions

Will my diary content be uploaded to the cloud?
Why can't Claude find my diary?
Can I query multiple diaries simultaneously?
Is this service收费?

Related resources

jrnl official website
Official documentation for the jrnl command-line diary tool.
MCP protocol description
Technical specifications for the Model Context Protocol.
GitHub repository
Source code and issue tracking for this project.
Node.js download
Install the Node.js runtime environment.

Installation

Copy the following command to your Client for configuration
{
  "mcpServers": {
    "jrnl": {
      "command": "jrnl-mcp"
    }
  }
}

{
  "mcpServers": {
    "jrnl": {
      "command": "node",
      "args": ["<path-to-project>/dist/index.js"]
    }
  }
}
Note: Your key is sensitive information, do not share it with anyone.

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