LLMs.txt Explorer MCP server

The MCP LLMS.txt Explorer is a Model Context Protocol server that helps you discover and analyze websites implementing the llms.txt standard. It provides tools to check websites for compliance and access structured data about websites that follow this standard.

Installation Options

Installing via Smithery

The easiest way to install the LLMS.txt Explorer for Claude Desktop is via Smithery:

npx -y @smithery/cli install @thedaviddias/mcp-llms-txt-explorer --client claude

Installing Manually

If you prefer a manual installation:

# Clone the repository
git clone https://github.com/thedaviddias/mcp-llms-txt-explorer.git
cd mcp-llms-txt-explorer

# Install dependencies
pnpm install

# Build the server
pnpm run build

Configuration

Setting Up with Claude Desktop

To use the server with Claude Desktop, you need to add server configuration to the Claude Desktop config file:

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

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

Add the following configuration:

{
  "mcpServers": {
    "llms-txt-explorer": {
      "command": "node",
      "args": ["/path/to/llms-txt-explorer/build/index.js"],
    }
  }
}

Using NPX

Alternatively, you can use npx in your configuration:

{
  "mcpServers": {
    "llms-txt-explorer": {
      "command": "npx",
      "args": ["-y", "@thedaviddias/mcp-llms-txt-explorer"]
    }
  }
}

Features and Usage

Available Resources

The server provides resources for:

• Checking websites for llms.txt and llms-full.txt files
• Parsing and validating llms.txt file contents
• Accessing structured data about compliant websites

Using the Tools

Check Website Tool

The check_website tool allows you to check if a website has llms.txt files:

• Input: Domain URL
• Output: File locations and validation status

Example usage in Claude:

Use the llms-txt-explorer to check if example.com implements llms.txt

List Websites Tool

The list_websites tool lets you discover websites that implement the llms.txt standard:

• Returns structured data about compliant websites
• Supports filtering by file type (llms.txt/llms-full.txt)

Example usage in Claude:

Use the llms-txt-explorer to list all websites that have implemented llms.txt

Debugging

Since MCP servers communicate over stdio, you can use the MCP Inspector for debugging:

pnpm run inspector

The Inspector will provide a URL to access debugging tools in your browser.

How to add this MCP server to 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 > MCP and click "Add new global MCP server".

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

{
    "mcpServers": {
        "cursor-rules-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "cursor-rules-mcp"
            ]
        }
    }
}

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 explictly ask the agent to use the tool by mentioning the tool name and describing what the function does.