Obsidian Omnisearch MCP server

This server allows you to search through your Obsidian vault notes programmatically using a REST API interface. It leverages the Omnisearch plugin and can be integrated with Claude Desktop via the Model Context Protocol (MCP).

Prerequisites

• Python 3.x
• Obsidian with Omnisearch plugin installed and running
• FastMCP library
• Active Obsidian vault

Installation

Option 1: Install via Smithery

You can automatically install the MCP Server Obsidian Omnisearch for Claude Desktop using Smithery:

npx -y @smithery/cli install @anpigon/mcp-server-obsidian-omnisearch --client claude

Option 2: Manual Installation

1. Clone the repository:

git clone https://github.com/anpigon/mcp-server-obsidian-omnisearch.git
cd mcp-server-obsidian-omnisearch

2. Install dependencies:

uv install

Configuration

The Obsidian vault path must be provided as a command line argument when running the server:

python server.py /path/to/your/obsidian/vault

Setting Up with Claude Desktop

Configuring Claude Desktop

Locate your Claude Desktop configuration file:

• MacOS: ~/Library/Application\ Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%/Claude/claude_desktop_config.json

For Published Servers

Add the following to your configuration file:

{
  "mcpServers": {
    "obsidian-omnisearch": {
      "command": "uvx",
      "args": [
        "mcp-server-obsidian-omnisearch",
        "/path/to/your/obsidian/vault"
      ]
    }
  }
}

For Development/Unpublished Servers

Add the following to your configuration file:

{
  "mcpServers": {
    "obsidian-omnisearch": {
      "command": "uv",
      "args": [
        "--directory",
        "<dir_to>/mcp-server-obsidian-omnisearch",
        "run",
        "mcp-server-obsidian-omnisearch",
        "/path/to/your/obsidian/vault"
      ]
    }
  }
}

Using the Search API

The server exposes the following search function:

Search Notes

• Function: obsidian_notes_search(query: str)
• Description: Searches Obsidian notes and returns absolute paths to matching notes
• Parameters:
  • query: Search query string
• Returns: List of absolute paths to matching notes

Monitoring and Troubleshooting

You can watch the server logs with:

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

For a better debugging experience, you can use the MCP Inspector:

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

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "obsidian-omnisearch" '{"command":"uvx","args":["mcp-server-obsidian-omnisearch","/path/to/your/obsidian/vault"]}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "obsidian-omnisearch": {
            "command": "uvx",
            "args": [
                "mcp-server-obsidian-omnisearch",
                "/path/to/your/obsidian/vault"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "obsidian-omnisearch": {
            "command": "uvx",
            "args": [
                "mcp-server-obsidian-omnisearch",
                "/path/to/your/obsidian/vault"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect