SearXNG MCP Server

An MCP (Model Context Protocol) server that provides web search via a SearXNG instance.

Setup

python -m venv venv
venv/Scripts/pip install -r requirements.txt   # Windows
# or
venv/bin/pip install -r requirements.txt       # Linux/macOS

Usage

With Claude Code

Add to your .mcp.json or ~/.claude/settings.json:

{
  "mcpServers": {
    "searxng": {
      "command": "/path/to/venv/bin/python",
      "args": ["/path/to/server.py"],
      "env": {
        "SEARXNG_URL": "http://your-searxng-instance:8080"
      }
    }
  }
}

Standalone

SEARXNG_URL=http://your-searxng-instance:8080 python server.py

Configuration

Environment Variable	Default	Description
SEARXNG_URL	http://192.168.50.224:30053	Base URL of your SearXNG instance

Your SearXNG instance must have JSON format enabled in its settings.yml under search.formats.

Tool: web_search

Search the web using SearXNG.

Parameter	Type	Required	Description
query	string	yes	Search query
categories	string	no	Comma-separated: general, images, news, videos, music, files, it, science, social media
language	string	no	Language code (e.g. en, de, fr)
pageno	int	no	Page number (starting at 1)
time_range	string	no	day, week, month, or year
safesearch	int	no	0=off, 1=moderate, 2=strict
max_results	int	no	Max results to return (default 10, max 50)

Tests

pip install pytest pytest-asyncio respx
pytest test_server.py -v