SearxNG MCP Server

This is a Model Context Protocol (MCP) server that provides a tool to interact with a SearXNG instance.

Features

• Exposes a search tool to perform searches via a configured SearXNG instance.
• Supports standard SearXNG parameters like query, categories, language, page_number, time_range, and safesearch.

Prerequisites

• Node.js (v18 or later recommended)
• npm
• Access to a running SearXNG instance (either self-hosted or public)

Installation

This server can be installed as an npm package.

npm install -g searxng-mcp-ts # Install globally
# OR
# npm install searxng-mcp-ts # Install as a project dependency

Alternatively, you can clone the repository and build it:

git clone <repository-url> # Replace with the actual URL after publishing
cd searxng-mcp-ts
npm install
npm run build

Configuration

This server requires the URL of your SearXNG instance. You can provide this by setting the SEARXNG_URL environment variable.

If you installed the package globally or as a project dependency, you can set the environment variable before running the command.

For convenience during development when cloning the repository, you can also create a .env file in the project root with the following content:

SEARXNG_URL=https://your-searxng-instance.com # <-- Update this URL

In your MCP client's settings file (e.g., mcp_settings.json for Roo/Cline), you can configure the server using npx (if not installed globally) or the command name (if installed globally):

{
  "mcpServers": {
    "searxng": {
      "description": "Search aggregator that queries multiple search engines and returns combined results",
      "command": "npx",
      "args": ["-y", "searxng-mcp-ts@latest"],
      "env": {
        "SEARXNG_URL": "https://your-searxng-instance.com" // <-- Update this URL
      },
      "timeout": 60,
      "transportType": "stdio", 
      "disabled": false,
      "alwaysAllow": []
    }
  }
}

Important:

• Replace https://your-searxng-instance.com with the actual base URL of your SearxNG instance.

Restart your MCP client after updating the configuration.

Usage

Once configured, the server provides a search tool. You can use it through your MCP client like this:

Example Request:

{
  "tool_name": "search",
  "server_name": "searxng",
  "arguments": {
    "query": "Model Context Protocol",
    "categories": "general",
    "language": "en"
  }
}

Example Natural Language (if supported by client):

"Search for 'Model Context Protocol' using SearXNG"

Production Readiness

This server includes improved error handling and logging to assist in debugging and monitoring in a production environment.

Development

• Watch for changes: npm run watch (automatically rebuilds on file changes)
• Linting: npm run lint
• Formatting: npm run format

License

MIT License