📌Overview

Purpose: The MCP server for Obsidian enables users to interact with their Obsidian vault through a Local REST API, streamlining access to notes and file management.

Overview: This server acts as a bridge between the MCP platform and Obsidian, providing several tools to enhance productivity by allowing users to easily manipulate and retrieve data from their Obsidian vault.

Key Features:

• File Management Tools: Includes functionalities like listing all files and directories in the vault, retrieving specific file contents, and appending or patching content in notes, facilitating efficient file organization and access.

• Search Capability: Users can perform text queries across all documents, allowing for quick retrieval of information and better contextual understanding of terms or topics mentioned in the notes.

• User-Friendly Configuration: Easy setup via server configurations or environment variables ensures a smooth integration with the existing Obsidian setup for both new and experienced users.

MCP server for Obsidian

MCP server to interact with Obsidian via the Local REST API community plugin.

Components

Tools

The server implements multiple tools to interact with Obsidian:

• list_files_in_vault: Lists all files and directories in the root directory of your Obsidian vault
• list_files_in_dir: Lists all files and directories in a specific Obsidian directory
• get_file_contents: Return the content of a single file in your vault.
• search: Search for documents matching a specified text query across all files in the vault
• patch_content: Insert content into an existing note relative to a heading, block reference, or frontmatter field.
• append_content: Append content to a new or existing file in the vault.
• delete_file: Delete a file or directory from your vault.

Example prompts

It's good to first instruct Claude to use Obsidian. Then it will always call the tool.

Use prompts like this:

• Get the contents of the last architecture call note and summarize them
• Search for all files where Azure CosmosDb is mentioned and quickly explain to me the context in which it is mentioned
• Summarize the last meeting notes and put them into a new note 'summary meeting.md'. Add an introduction so that I can send it via email.

Configuration

Obsidian REST API Key

There are two ways to configure the environment with the Obsidian REST API Key.

1. Add to server config (preferred)

{
  "mcp-obsidian": {
    "command": "uvx",
    "args": [
      "mcp-obsidian"
    ],
    "env": {
      "OBSIDIAN_API_KEY": "<your_api_key_here>",
      "OBSIDIAN_HOST": "<your_obsidian_host>"
    }
  }
}

2. Create a .env file in the working directory with the following required variables:

OBSIDIAN_API_KEY=your_api_key_here
OBSIDIAN_HOST=your_obsidian_host

Note: You can find the key in the Obsidian plugin config.

Quickstart

Install

Obsidian REST API

You need the Obsidian REST API community plugin running: https://github.com/coddingtonbear/obsidian-local-rest-api

Install and enable it in the settings and copy the API key.

Claude Desktop

On MacOS: ~/Library/Application\ Support/Claude/claude_desktop_config.json

On Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp-obsidian": {
      "command": "uv",
      "args": [
        "--directory",
        "<dir_to>/mcp-obsidian",
        "run",
        "mcp-obsidian"
      ]
    }
  }
}

{
  "mcpServers": {
    "mcp-obsidian": {
      "command": "uvx",
      "args": [
        "mcp-obsidian"
      ],
      "env": {
        "OBSIDIAN_API_KEY" : "<YOUR_OBSIDIAN_API_KEY>"
      }
    }
  }
}

Development

Building

To prepare the package for distribution:

1. Sync dependencies and update lockfile:

uv sync

Debugging

Since MCP servers run over stdio, debugging can be challenging. For the best debugging experience, we strongly recommend using the MCP Inspector: https://github.com/modelcontextprotocol/inspector

You can launch the MCP Inspector via npm with this command:

npx @modelcontextprotocol/inspector uv --directory /path/to/mcp-obsidian run mcp-obsidian

Upon launching, the Inspector will display a URL that you can access in your browser to begin debugging.

You can also watch the server logs with this command:

tail -n 20 -f ~/Library/Logs/Claude/mcp-server-mcp-obsidian.log