AI Book Companion | Vapi, ElevenLabs

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📋 Table of Contents

1. ✨ Introduction
2. ⚙️ Tech Stack
3. 🔋 Features
4. 🤸 Quick Start
5. 🔗 Assets
6. 🚀 More

🚨 Tutorial

This repository contains the code corresponding to an in-depth tutorial available on our YouTube channel, JavaScript Mastery.

If you prefer visual learning, this is the perfect resource for you. Follow our tutorial to learn how to build projects like these step-by-step in a beginner-friendly manner!

✨ Introduction

Bookified is an AI-powered platform that lets you have real-time voice conversations with your books. Built with Next.js 16, Vapi, and MongoDB, it transforms PDFs into interactive entities using natural voice synthesis. Choose from custom ElevenLabs personas to chat with your library, request summaries, and view live transcripts—all wrapped in a sleek Shadcn UI with Clerk authentication.

If you're getting started and need assistance or face any bugs, join our active Discord community with over 50k+ members. It's a place where people help each other out.

⚙️ Tech Stack

• Clerk is a comprehensive user management and authentication platform. It provides secure, pre-built components for email and social logins, enabling seamless session management and protected routes with minimal configuration.

• CodeRabbit is an AI-powered code review platform that provides contextual, line-by-line feedback on pull requests. It automates the review process by identifying bugs, suggesting optimizations, and ensuring coding standards are met, significantly reducing the manual effort for developers and improving code quality.

• ElevenLabs is an advanced AI audio platform providing lifelike text-to-speech. It powers the voice previews in Bookified, allowing users to hear and select from a variety of natural-sounding AI personas before starting a conversation.

• MongoDB is a flexible, document-based NoSQL database designed for scalability and developer ease. Combined with Mongoose, it serves as the core storage for user libraries, book metadata, and conversation transcripts.

• Next.js is a powerful React framework for building full-stack web applications. It handles the core application logic, server-side rendering, and API routes, enabling a fast and responsive interface for the Bookified platform.

• Shadcn UI is a collection of re-usable, accessible components built with Tailwind CSS and Radix UI. It allows for the creation of a clean, modular, and professional-grade user interface that is easy to customize and theme.

• TypeScript is a superset of JavaScript that adds static typing, providing better tooling, code quality, and error detection. It ensures the application remains maintainable and robust as the codebase scales.

• Vapi is a specialized Voice AI platform that enables real-time, low-latency conversational audio. It serves as the primary engine for Bookified, allowing users to have seamless, back-and-forth verbal interactions with their uploaded content.

🔋 Features

👉 PDF Upload & Ingestion: Seamlessly upload PDF books with automated text extraction, intelligent chunking, and high-dimensional embeddings for precise context retrieval.

👉 Voice-First Conversations: Engage in natural, real-time voice dialogues with your uploaded books, allowing you to ask questions or explore complex concepts verbally via Vapi.

👉 AI Voice Personas: Choose from a variety of distinct AI personalities and hear instant high-fidelity previews powered by ElevenLabs to find the perfect reading companion.

👉 Smart Summaries & Insights: Quickly extract the essence of any chapter or request deep-dive summaries, making long-form content more accessible and digestible.

👉 Session Transcripts: Keep a complete record of every vocal interaction with auto-generated text transcripts, ensuring you never lose a key insight from your discussions.

👉 Library Management: Effortlessly organize and search through your personal uploads or the global collection with a high-performance search interface.

👉 Auth & Subscription: Secure user access via email and social login, paired with a robust billing system to manage premium features and platform subscriptions.

And many more, including code architecture and reusability.

🤸 Quick Start

Follow these steps to set up the project locally on your machine.

Prerequisites

Make sure you have the following installed on your machine:

• Git
• Node.js
• npm (Node Package Manager)

Cloning the Repository

git clone https://github.com/adrianhajdin/jsm_bookified.git
cd jsm_bookified

Installation

Install the project dependencies using npm:

npm install

Set Up Environment Variables

Create a new file named .env in the root of your project and add the following content:

NODE_ENV='development'
NEXT_PUBLIC_BASE_URL=

# CLERK
NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY=
CLERK_SECRET_KEY=
NEXT_PUBLIC_CLERK_SIGN_IN_URL=/sign-in
NEXT_PUBLIC_CLERK_SIGN_UP_URL=/sign-up
NEXT_PUBLIC_CLERK_SIGN_IN_FALLBACK_REDIRECT_URL=/
NEXT_PUBLIC_CLERK_SIGN_UP_FALLBACK_REDIRECT_URL=/

# VERCEL BLOB
BLOB_READ_WRITE_TOKEN=

# MONGODB
MONGODB_URI=

# VAPI
NEXT_PUBLIC_VAPI_API_KEY=
VAPI_SERVER_SECRET=

# Google Gemini API for embeddings
GOOGLE_GEMINI_API_KEY=

# ELEVENLABS
ELEVENLABS_API_KEY=

Replace the placeholder values with your real credentials. You can get these by signing up at: Clerk, Vercel, MongoDB, Vapi, Google AI Studio, ElevenLabs.

Running the Project

npm run dev

Open http://localhost:3000 in your browser to view the project.

🔗 Assets

Assets and snippets used in the project can be found in the video kit.

🚀 More

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