mitrAI is an aesthetic, modern, full-stack AI chatbot powered by the Google Gemini API (gemini-2.5-flash). Built with a beautiful glassmorphic UI, it features a safe backend proxy designed to securely stream and handle your private API key without exposing it to the client side.

• Conversational AI: Engaging chat experience with smooth streaming responses handled securely through a Node.js backend.
• Persistent Sessions (Login): Includes a sleek login overlay that demands a user's name on first load, securely storing session details in the browser's localStorage so they are remembered during return visits.
• Multimodal Support: Supports image attachments for powerful vision-based AI queries.
• Voice Interactions:
  • Speak your messages directly using the built-in browser Speech-to-Text Recognition interface.
  • MitrAI can audibly read out its responses to you effortlessly via Text-to-Speech synthesis.
• Rich Formatting: Instantly parses Markdown elements like bold text and tables in the server stream. Includes beautifully rendered Code Blocks with automatic one-click "Copy" functionality.
• Chat History: Visual sidebar organizing previous interactions so you can reference older messages contextually.
• Secure Backend Integration: The Gemini API interacts strictly with a server.js Express proxy. Your API Key stays safely locked within your .env file instead of being leaked on the frontend.

Follow these instructions to get mitrAI running locally on your machine.

Ensure you have the following installed on your machine:

• Node.js (v18 or higher recommended for native Fetch API support)
• A valid Google Gemini API Key

1. Clone the repository:

   git clone https://github.com/Swaim-Sahay/Interactive-ChatBot.git
   cd Interactive-ChatBot

2. Install dependencies:

   npm install

3. Configure Environment Variables:

   • Create a file named .env in the root directory.
   • Add your Gemini API Key safely to this file:

     GEMINI_API_KEY=your_google_gemini_api_key_here
     PORT=3000

Start the backend Node server which will securely serve the UI and connect to Gemini:

node server.js

Once running across your terminal, open your favorite web browser and navigate to: http://localhost:3000

Enjoy conversing with your digital mitra!

• Frontend: Vanilla HTML5, advanced CSS3 (Glassmorphism & Flexbox), and modular JavaScript.
• Backend: Node.js with the Express framework.
• Libraries/APIs:
  • marked.js and highlight.js (for rendering Markdown text & code syntax respectively).
  • dotenv (for API key security).
  • Web Speech APi (SpeechRecognition & SpeechSynthesis).
  • Google Gemini API (gemini-2.5-flash).