Add README

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

README.md

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+# SearXNG MCP Server
+
+An MCP (Model Context Protocol) server that provides web search via a [SearXNG](https://github.com/searxng/searxng) instance.
+
+## Setup
+
+```bash
+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`:
+
+```json
+{
+  "mcpServers": {
+    "searxng": {
+      "command": "/path/to/venv/bin/python",
+      "args": ["/path/to/server.py"],
+      "env": {
+        "SEARXNG_URL": "http://your-searxng-instance:8080"
+      }
+    }
+  }
+}
+```
+
+### Standalone
+
+```bash
+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
+
+```bash
+pip install pytest pytest-asyncio respx
+pytest test_server.py -v
+```