🤖 Nexus AI

Autonomous Customer Resolution Platform

Resolve customer queries in seconds — via Voice or Text — 24/7, powered by OpenAI GPT-4o

📌 Table of Contents

What is Nexus AI?
Key Features
Live Demo
Screenshots
Tech Stack
Project Structure
Getting Started
Environment Variables
API Reference
Pricing Plans
Why Nexus AI?
Contact
License

🧠 What is Nexus AI?

Nexus AI is a production-ready, full-stack SaaS platform that uses OpenAI GPT-4o Audio to autonomously handle customer support queries — through both voice and text — without any human agent.

It cuts customer support response time from 30 minutes → 3 seconds, reduces support costs by 80%, and stays available 24 hours a day, 7 days a week.

Built for startups, e-commerce companies, fintech, healthcare, and any business that needs scalable, intelligent customer support.

✨ Key Features

🎙️ AI Voice & Text Support

Real-time voice conversations using OpenAI GPT-4o Audio Realtime API
Text chat with streaming responses (word-by-word, like ChatGPT)
Smart quick-action suggestions (Refund, Password Reset, Escalate, Update Account)
Conversation history with timestamps

🤖 Autonomous AI Actions

The AI agent can independently perform:

✅ Issue refunds — process customer refund requests
✅ Reset passwords — handle login/account recovery
✅ Cancel orders — manage order cancellations
✅ Escalate tickets — route complex issues to human agents
✅ Update account info — modify customer details

📊 CRM Dashboard (Protected Route)

Live statistics: Customers, Open Tickets, Escalations, Resolved Cases
Customer directory with full profile view
Ticket management and status tracking
Agent action log — every AI action recorded
Fully protected — requires authenticated session

🔐 Secure Authentication

Session-based auth with Passport.js LocalStrategy
Passwords hashed with bcryptjs (12 salt rounds)
7-day persistent sessions via connect-pg-simple
Real-time form validation:
- Username: 3–20 chars, alphanumeric only
- Password: min 6 chars, at least 1 letter + 1 number
Show/hide password toggle
English-only error messages

⚙️ Fully Functional Settings Panel

Section	Options
Account	View profile, role, session status, change password
Appearance	Dark / Light / System theme (persisted)
Language	English, Hindi, Spanish, French
Notifications	Email alerts, AI action alerts, escalation alerts
AI Preferences	Voice mode, auto-log, streaming, response style
About	Platform info, version, tech stack
Contact Us	Clickable phone & email

All settings are persisted to localStorage — survive page reloads.

💳 Pricing & Plans

3-tier pricing: Starter / Professional / Enterprise
Razorpay payment integration (ready to activate)
Clean pricing cards with feature comparison

🌐 Portfolio Page

Beautiful standalone marketing page at /portfolio
Animated hero section, stats counter, feature cards
Tech stack grid, how-it-works steps, pricing preview
Clickable contact links (phone + email)

🚀 Live Demo

Page	Link
🏠 AI Support (Home)	nexus-ai.replit.app
🌐 Portfolio	nexus-ai.replit.app/portfolio
📊 CRM Dashboard	nexus-ai.replit.app/crm (login required)
💳 Pricing	nexus-ai.replit.app/pricing
⚙️ Settings	nexus-ai.replit.app/settings

📸 Screenshots

🤖 AI Support — Voice & Text Agent

Real-time AI conversations with streaming responses, voice recording, and quick action suggestions.

📊 CRM Dashboard

Live analytics with customer directory, ticket management, and agent action log. Protected by authentication.

⚙️ Settings Panel

Functional settings with theme switching (Dark/Light/System), language preferences, notifications, AI preferences, and Contact Us section.

🌐 Portfolio Page

Beautiful marketing page showcasing the platform with animated stats, feature cards, and pricing.

🛠️ Tech Stack

Frontend

Technology	Version	Purpose
React	18	UI framework
TypeScript	5	Type safety
Tailwind CSS	3	Styling
Framer Motion	Latest	Animations
TanStack Query	v5	Server state management
Wouter	Latest	Client-side routing
shadcn/ui	Latest	UI components
Lucide React	Latest	Icons

Backend

Technology	Version	Purpose
Node.js	20+	Runtime
Express.js	4	HTTP server
TypeScript	5	Type safety
Drizzle ORM	Latest	Database ORM
PostgreSQL	14+	Database
Passport.js	Latest	Authentication
bcryptjs	Latest	Password hashing
express-session	Latest	Session management
connect-pg-simple	Latest	PostgreSQL session store

AI & Integrations

Technology	Purpose
OpenAI GPT-4o Audio	Voice + text AI responses
Server-Sent Events (SSE)	Real-time streaming
Razorpay	Payment processing (integration ready)

📁 Project Structure

nexus-ai/
│
├── client/                          # React Frontend
│   └── src/
│       ├── pages/
│       │   ├── customer-support.tsx # AI Support Agent (Home)
│       │   ├── crm-portal.tsx       # CRM Dashboard (Protected)
│       │   ├── payment.tsx          # Pricing & Plans
│       │   ├── settings.tsx         # Settings Panel
│       │   ├── portfolio.tsx        # Marketing Portfolio Page
│       │   └── login.tsx            # Login / Register
│       │
│       ├── components/
│       │   ├── layout.tsx           # Sidebar navigation layout
│       │   ├── waveform.tsx         # Audio waveform visualizer
│       │   └── ui/                  # shadcn/ui components
│       │
│       ├── hooks/
│       │   ├── use-auth.ts          # Authentication hooks
│       │   ├── use-settings.tsx     # Settings context + persistence
│       │   ├── use-crm.ts           # CRM data hooks
│       │   └── use-voice.ts         # Voice/conversation hooks
│       │
│       └── lib/
│           └── queryClient.ts       # TanStack Query setup
│
├── server/                          # Express Backend
│   ├── index.ts                     # Entry point
│   ├── auth.ts                      # Passport.js auth + all auth APIs
│   ├── routes.ts                    # CRM & AI API routes
│   ├── storage.ts                   # Database interface (Drizzle)
│   ├── db.ts                        # PostgreSQL connection
│   └── replit_integrations/         # OpenAI Audio integration
│
├── shared/
│   └── schema.ts                    # Drizzle schema + Zod types
│
├── replit.md                        # Project documentation
└── README.md                        # This file

🚀 Getting Started

Prerequisites

Node.js 20 or higher
PostgreSQL 14+ database
OpenAI API key (with Realtime Audio access)

1. Clone the Repository

git clone https://github.com/dwivedidayashankar31-art/nexus-ai.git
cd nexus-ai

2. Install Dependencies

npm install

3. Set Up Environment Variables

Create a .env file in the root directory:

DATABASE_URL=postgresql://username:password@localhost:5432/nexusai
SESSION_SECRET=your-super-secret-session-key-here
OPENAI_API_KEY=sk-your-openai-api-key-here

4. Set Up Database

npm run db:push

5. Start Development Server

npm run dev

The app will be available at http://localhost:5000

Note: Frontend and backend both run on port 5000 — Vite proxies API requests automatically.

🔐 Environment Variables

Variable	Required	Description
`DATABASE_URL`	✅ Yes	PostgreSQL connection string
`SESSION_SECRET`	✅ Yes	Secret for session encryption (use a long random string)
`OPENAI_API_KEY`	✅ Yes	OpenAI API key with GPT-4o Audio access
`NODE_ENV`	Optional	`development` or `production` (default: development)

📡 API Reference

Authentication

Method	Endpoint	Auth Required	Description
`POST`	`/api/register`	❌	Create new user account
`POST`	`/api/login`	❌	Sign in with credentials
`POST`	`/api/logout`	✅	End current session
`GET`	`/api/me`	✅	Get current authenticated user
`POST`	`/api/change-password`	✅	Update account password

AI & Conversations

Method	Endpoint	Auth Required	Description
`GET`	`/api/conversations`	❌	List all conversations
`POST`	`/api/conversations`	❌	Create new conversation
`GET`	`/api/conversations/:id`	❌	Get specific conversation

CRM

Method	Endpoint	Auth Required	Description
`GET`	`/api/stats`	✅	Get dashboard statistics
`GET`	`/api/customers`	✅	List all customers
`GET`	`/api/customers/:id`	✅	Get customer profile
`GET`	`/api/tickets`	✅	List all support tickets
`POST`	`/api/tickets`	✅	Create new ticket
`GET`	`/api/actions`	✅	Get AI agent action log

Register Request Body

{
  "username": "john123",
  "password": "john@123"
}

Validation Rules

Username: 3–20 characters, letters and numbers only
Password: Min 6 characters, at least 1 letter + 1 number

💳 Pricing Plans

Plan	Price	Conversations	Features
Starter	₹2,999/month	500/month	AI Text, Basic CRM, Email support
Professional	₹7,999/month	2,000/month	AI Voice + Text, Full CRM, Priority support, Custom branding
Enterprise	Custom	Unlimited	Dedicated AI agent, White-label, 24/7 support, Custom integrations

💡 Free 14-day trial available. No credit card required.

📈 Why Nexus AI?

Metric	Without Nexus AI	With Nexus AI
Response Time	30+ minutes	Under 3 seconds
Support Cost	₹50,000+/month (agents)	₹2,999/month
Availability	9 AM – 6 PM	24/7/365
Simultaneous Users	1 per agent	1,000+
Consistency	Varies by agent	Always professional
Scalability	Hire more staff	Instant scale

👨‍💻 About the Developer

Dayashankar Dwivedi — Full-Stack Developer & AI Enthusiast

Built Nexus AI as a complete, production-ready SaaS platform demonstrating:

Real-time AI voice integration (OpenAI Realtime API)
Secure session-based authentication
Full-stack TypeScript development
PostgreSQL database design with Drizzle ORM
Professional dark-themed UI with Tailwind + Framer Motion

📞 Contact

📱 Phone / WhatsApp	+91 74896 55562
📧 Email	dwivedidayashankar31@gmail.com
🐙 GitHub	github.com/dwivedidayashankar31-art

💼 Available for freelance projects, custom enterprise deployments, and collaboration.

📄 License

This project is licensed under the MIT License — feel free to use, modify, and distribute.

MIT License — Copyright (c) 2025 Dayashankar Dwivedi

⭐ If you found this project useful, please give it a star on GitHub!

Built with ❤️ by Dayashankar Dwivedi

Name		Name	Last commit message	Last commit date
Latest commit History 113 Commits
.agents		.agents
client		client
script		script
server		server
shared		shared
.gitignore		.gitignore
.replit		.replit
README.md		README.md
components.json		components.json
drizzle.config.ts		drizzle.config.ts
package-lock.json		package-lock.json
package.json		package.json
postcss.config.js		postcss.config.js
replit.md		replit.md
tailwind.config.ts		tailwind.config.ts
tsconfig.json		tsconfig.json
vite.config.ts		vite.config.ts

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🤖 Nexus AI

Autonomous Customer Resolution Platform

📌 Table of Contents

🧠 What is Nexus AI?

✨ Key Features

🎙️ AI Voice & Text Support

🤖 Autonomous AI Actions

📊 CRM Dashboard (Protected Route)

🔐 Secure Authentication

⚙️ Fully Functional Settings Panel

💳 Pricing & Plans

🌐 Portfolio Page

🚀 Live Demo

📸 Screenshots

🤖 AI Support — Voice & Text Agent

📊 CRM Dashboard

⚙️ Settings Panel

🌐 Portfolio Page

🛠️ Tech Stack

Frontend

Backend

AI & Integrations

📁 Project Structure

🚀 Getting Started

Prerequisites

1. Clone the Repository

2. Install Dependencies

3. Set Up Environment Variables

4. Set Up Database

5. Start Development Server

🔐 Environment Variables

📡 API Reference

Authentication

AI & Conversations

CRM

Register Request Body

Validation Rules

💳 Pricing Plans

📈 Why Nexus AI?

👨‍💻 About the Developer

📞 Contact

📄 License

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