SearXNG MCP Client - Fully Online

A Model Context Protocol (MCP) client for SearXNG metasearch engine that works 100% online with no local dependencies.

🌐 Fully Online Architecture

Cursor MCP Config
    ↓ npx command
Node.js MCP Client (npm package)
    ↓ HTTP requests  
Railway Web Server (your deployment)
    ↓ SearXNG API calls
Public SearXNG Instance

🚀 Quick Setup (Option 1: npm package)

1. Publish to npm (if you want to make it publicly available)

cd /Users/leonardoviri/lab/searxng
npm publish

2. Update your MCP config

Update your ~/.cursor/mcp.json:

{
  "mcpServers": {
    "searxng": {
      "command": "npx",
      "args": ["searxng-mcp-client"],
      "env": {
        "SEARXNG_MCP_WEB_URL": "https://searxng-production-ea9d.up.railway.app"
      },
      "tags": ["search", "web", "metasearch"]
    }
  }
}

🔧 Quick Setup (Option 2: Local but online-connected)

If you don't want to publish to npm yet, you can still eliminate the Python dependency:

1. Install dependencies

cd /Users/leonardoviri/lab/searxng
npm install

2. Update your MCP config

Update your ~/.cursor/mcp.json:

{
  "mcpServers": {
    "searxng": {
      "command": "node",
      "args": ["/Users/leonardoviri/lab/searxng/index.js"],
      "env": {
        "SEARXNG_MCP_WEB_URL": "https://searxng-production-ea9d.up.railway.app"
      },
      "tags": ["search", "web", "metasearch"]
    }
  }
}

✅ What's Now Fully Online

• ✅ Web Server: Deployed on Railway
• ✅ Search Backend: Uses public SearXNG instance
• ✅ MCP Client: Node.js (no Python dependency)
• ✅ All Communication: HTTP requests to online services

🎯 Available Search Tools

Your MCP client now provides:

1. mcp_searxng_search - General web search
2. mcp_searxng_search_images - Image search
3. mcp_searxng_search_news - News search
4. mcp_searxng_search_videos - Video search
5. mcp_searxng_search_science - Scientific paper search
6. mcp_searxng_advanced_search - Advanced search with operators

🔍 Usage Examples

// Basic search
{
  "query": "machine learning trends 2024",
  "max_results": 10
}

// Advanced search with site restriction
{
  "query": "python tutorials",
  "site": "github.com", 
  "max_results": 15
}

// News search with time filter
{
  "query": "artificial intelligence news",
  "time_range": "day",
  "max_results": 8
}

🐛 Troubleshooting

Test your Railway deployment:

curl https://searxng-production-ea9d.up.railway.app/health

Test the Node.js client locally:

cd /Users/leonardoviri/lab/searxng
node index.js

Common Issues:

1. "Module not found" - Run npm install
2. "Connection refused" - Check Railway deployment status
3. "Tool not found" - Verify Railway app is running and /tools endpoint works

🚀 Deployment Options

Option A: Private npm package

npm publish --access=restricted

Option B: Public npm package

npm publish --access=public

Option C: GitHub package

npm publish --registry=https://npm.pkg.github.com

📁 File Structure

searxng/
├── index.js              # Node.js MCP client (replaces Python)
├── package.json          # npm package configuration  
├── searxng_web_server.py  # FastAPI server (deployed on Railway)
├── requirements.txt      # Python dependencies (Railway)
├── Procfile             # Railway deployment config
├── railway.json         # Railway settings
└── README.md           # This file

🎉 Benefits of This Setup

• 🌐 100% Online - No local Python files needed
• 📦 npm Distribution - Can be installed anywhere with npx
• ⚡ Fast - Direct HTTP calls to Railway
• 🔄 Scalable - Railway handles all the heavy lifting
• 🛡️ Reliable - No local dependencies to break
• 🚀 Easy Updates - Update Railway deployment or npm package independently

🔄 Migration Complete!

You've successfully migrated from:

Python MCP Server (local) → Node.js MCP Client (npm) → Railway Web Server (online)

Your SearXNG MCP is now fully online and ready for production! 🎯