🤖 Simple AI Assistant (Node.js + Groq / OpenAI)

A lightweight Node.js server that acts as an AI assistant using the Groq API (featuring blazing-fast open-source models like Mixtral and LLaMA 3). You can ask questions via a REST endpoint or CLI and get intelligent responses — perfect for experimenting with AI or adding natural language support to your app.

💡 Optional: You can also use OpenAI's GPT-3.5/GPT-4 models if you have a paid API key.

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✨ Features

• 🚀 Simple Express server
• ⚡ Powered by Groq's Mixtral or LLaMA 3
• 🔒 Secure API key management with .env
• 📦 Lightweight and minimal dependencies
• 🧪 Ready to integrate with frontend or CLI
• 🔄 Optional fallback to OpenAI ChatGPT (paid)

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📁 Project Structure

ai-assistant-node/ ├── .env # Stores API keys for Groq and/or OpenAI ├── index.js # Express server with /ask endpoint ├── groq.js # grok logic ├── openai.js # OpenAI integration logic ├── cli.js # (Optional) CLI tool to ask questions └── package.json

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🚀 Getting Started

1. Clone the repo

git clone https://github.com/your-username/ai-assistant-node.git
cd ai-assistant-node

2. Install dependencies

npm install

3. Set up your OpenAI API Key

Create a .env file in the root:

GROQ_API_KEY=your_groq_api_key_here
GROQ_MODEL=""

GROQ_API_KEY=your_groq_api_key_here
# Optional, for OpenAI fallback or testing
# OPENAI_API_KEY=your_openai_api_key_here
# OPENAI_MODEL=""

🔑 Get a Groq API key from https://console.groq.com/keys 🔑 Get an OpenAI API key from https://platform.openai.com/account/api-keys (requires billing enabled)

🧪 Usage ✅ Run the server

bash
node index.js

It will start on: http://localhost:3000

🗨️ Ask the AI a question Send a POST request to /ask with JSON:

curl -X POST http://localhost:3000/ask \
  -H "Content-Type: application/json" \
  -d '{"question": "How do I center a div in CSS?"}'

You’ll get a response like:

{
  "answer": "You can center a div using margin: auto or Flexbox. For example: ..."
}

💡 Optional: Use CLI

node cli.js "What's the best way to learn Docker?"

🔄 Switching Between Groq and OpenAI By default, the app uses Groq.

To switch to OpenAI:

1. Use openai.js instead of groq.js in index.js and cli.js

2. Ensure OPENAI_API_KEY is defined in .env

3. Uncomment or adjust imports:

// const { askAI } = require("./groq");
const { askAI } = require("./openai");

🛠️ Future Enhancements

• Chat history / conversation memory

• Stream responses for real-time typing

• Frontend integration (React/Vue)

• Voice interface (Speech-to-text / TTS)

• Slack / Discord / Telegram bot support