MixxAI – Multi-LLM AI Chatbot SaaS Platform | ChatGPT, Gemini, Claude, DeepSeek | React + Node.js Full-Stack

MixxAI is a production-ready AI chatbot SaaS platform that unifies the world’s most powerful Large Language Models (LLMs) into one seamless experience. Built with React 19 and Strapi 5 (Node.js), MixxAI lets you deploy your own ChatGPT-like application with multi-model support, RAG capabilities, and subscription billing – perfect for startups, agencies, and enterprises looking to launch AI products fast.

Why Choose MixxAI?

✅ Multi-LLM Architecture – Access ChatGPT (GPT-4o), Google Gemini (2.0 Flash/Pro), Claude, DeepSeek from a single interface

✅ Full Source Code – No encrypted files, fully customizable React + Node.js codebase

✅ One-Click Installer – Deploy to any VPS in under 10 minutes with automated setup script

✅ SaaS-Ready – Built-in subscription system with Lemon Squeezy, Stripe, and Paddle integration

✅ Mobile-Friendly – Responsive design works perfectly on desktop, tablet, and mobile

✅ Enterprise Security – API key encryption, role-based access, secure JWT authentication

Items Included

1️⃣ Customer Web App (React 19 + TypeScript)

2️⃣ Admin Panel & Backend API (Strapi 5 + Node.js 22)

3️⃣ PostgreSQL Database with pgvector for RAG

4️⃣ Complete Documentation & Video Tutorials

5️⃣ Automated Installation Script (Ubuntu/Debian VPS)

6️⃣ Lifetime Updates & 6-Month Premium Support

– Version: 1.0.0
– Stack: React 19 + Strapi 5 + PostgreSQL + pgvector
– AI Models: ChatGPT (GPT-4o), Gemini (2.0 Flash/Pro), Claude, DeepSeek
– File Included: Full Source Code of MixxAI Web App + Admin Panel + Installation Script

AI Capabilities

#1 Customer Web App:

Multi-Model Chat

Switch between ChatGPT, Gemini, Claude, DeepSeek, and custom fine-tuned models. Each model can be configured with custom system prompts, temperature settings, and token limits.

AI Image Generation (DALL-E 3 & Gemini Imagen)

Generate stunning images from text prompts. Supports multiple styles, aspect ratios, and quality settings. Images are permanently stored with secure signed URLs.

Vision & Image Analysis

Upload images and let AI analyze, describe, extract text (OCR), or answer questions about visual content. Perfect for document scanning, product analysis, and accessibility features.

Smart Document Reader (PDF, Word, PowerPoint)

Upload documents for instant AI-powered summarization, Q&A, key points extraction, and study notes generation. Powered by RAG (Retrieval Augmented Generation) with vector embeddings.

Audio Transcription & Analysis

Upload audio files (MP3, WAV, M4A) for accurate speech-to-text transcription. AI can summarize, translate, extract action items, or answer questions about the audio content.

Video Processing & Summarization

Upload videos for automated transcription, content summarization, key moments extraction, and conversational Q&A about video content.

Website Content Analysis

Paste any URL and MixxAI instantly fetches, summarizes, and explains the content. Great for research, competitive analysis, and content curation.

YouTube & TikTok Transcript

Extract transcripts from YouTube/TikTok videos, get AI summaries, and have conversations about video content without watching the full video.

Secure API Key Encryption

Protect API keys with strong encryption to prevent unauthorized access and ensure data security.

Cost-Efficient Token Usage

Optimize API token consumption with smart limitation of free and premium accounts to reduce costs without compromising performance. The limitation can be edited in admin panel.

#2 Admin Panel Features

Analytics Dashboard

Visual charts display active users, conversations, token usage, revenue, and subscription metrics for data-driven business decisions.

User Management

Complete user administration with search, filtering, subscription management, usage limits, and direct communication tools.

AI Model Configuration

Customize AI models with titles, descriptions, system prompts, tier restrictions, and feature toggles. Create specialized AI assistants for different use cases (writing, coding, analysis, etc.).

Subscription & Billing

Manage subscription plans, pricing tiers, payment gateways, and transaction history. Support for Free, Basic, and Pro tiers with customizable limits.

⚙️ App Settings

Configure all settings from the admin panel – API keys, payment gateways, OAuth providers, email settings – no code changes required.

Monetization & Billing

Lemon Squeezy Integration (Recommended for Global Sellers)

Stripe Payments (Cards, Apple Pay, Google Pay)

Paddle Billing (VAT-compliant for EU)

Apple In-App Purchase (iOS App Ready)

Google Play Billing (Android App Ready)

Tiered Pricing (Free / Basic / Pro)

Monthly & Yearly Subscriptions

Usage-Based Limits (Messages, Files, Storage)

Technical Specifications

Frontend:

• React 19 with TypeScript
• Tailwind CSS for modern UI
• Zustand for state management
• React Router v6
• Responsive mobile-first design

Backend:

• Strapi 5.1.0 (Headless CMS)
• Node.js 22 LTS
• PostgreSQL 15 with pgvector
• RESTful API architecture
• JWT authentication

AI Integration:

• OpenAI API (GPT-4o, GPT-4o-mini, DALL-E 3)
• Google Gemini API (2.0 Flash, Pro, Imagen)
• Anthropic Claude API
• DeepSeek API
• RAG with vector embeddings (1536 dimensions)

DevOps:

• PM2 process manager
• Nginx reverse proxy
• Let’s Encrypt SSL
• GitHub Actions CI/CD
• Docker support (optional)

Easy Installation

1. Upload source to your VPS (Ubuntu 20.04+)
2. Run: bash mixxai-installer.sh
3. Follow the prompts (domain, email, passwords)
4. Done! Your AI chatbot is live in ~10 minutes

Requirements:

• VPS with 1GB+ RAM (2GB recommended)
• Ubuntu 20.04/22.04/24.04 or Debian 11/12
• Domain name with DNS configured
• OpenAI or Gemini API key

Demo & Documentation

Live Demo: https://mixxai.app Documentation: https://doc-mixxai.web.app Admin Panel Demo: https://api.mixxai.app/admin 

Change Log

V1.0.0 | December 2024 - Initial Release - Multi-LLM support (ChatGPT, Gemini, Claude, DeepSeek) - Image generation (DALL-E 3, Gemini Imagen) - PDF/Audio/Video processing with RAG - Subscription system (Lemon Squeezy, Stripe, Paddle) - One-click installer script - Complete documentation 

Support & Contact

Email: [email protected]
Telegram: @witworkapp
X (Twitter): @witworkapp
Facebook: /witworkapp
Documentation: doc-mixxai.web.app

We provide 6-month premium support including installation assistance, bug fixes, and feature guidance. Extended support available for purchase.

License & Usage Terms

This source code is provided under the terms of the CodeCanyon Regular or Extended License, depending on your purchase.

✅ Regular License:

Use for a single end product that does not charge users. No support for monetization features (e.g., subscriptions, ads).

✅ Extended License:

Use for a commercial product that charges end users, such as through in-app purchases, subscriptions, or ads. Includes support for monetization features.

Please purchase the correct license according to your use case.

Copyright & Third-Party Disclaimer – WitWorkApp

WitWorkApp offers software products and services that may include third-party content, APIs, libraries, or materials. While we make reasonable efforts to ensure compliance with copyright laws and intellectual property standards, the following terms apply:

1. Third-Party Content and Dependencies

Some components included in our products (e.g., APIs, SDKs, models, visual assets, or libraries) may originate from third-party sources. We rely on the warranties and representations of such third parties regarding ownership and licensing rights. WitWorkApp does not independently verify the copyright status of every third-party asset included.

2. User Responsibility

Users and purchasers of WitWorkApp products are solely responsible for:

Verifying licensing and usage rights for all included third-party components

Ensuring lawful use, distribution, or modification of any copyrighted content

Registering their own API keys or credentials where required (e.g., OpenAI, Google)

We strongly advise reviewing and complying with the terms of service of any third-party services you integrate.

3. No Legal Advice Provided

All information, documentation, or comments provided by WitWorkApp (including those related to licensing or copyright compliance) are for informational purposes only and do not constitute legal advice. For any legal concerns, you should consult a qualified attorney or legal advisor.

4. Limitation of Liability

By purchasing or using our products, you expressly acknowledge and agree that:

WitWorkApp is not liable for any copyright infringement, claim, or legal dispute arising from your use of third-party content

You assume full responsibility for compliance with local laws and licensing requirements

WitWorkApp shall not be held responsible for any damages, direct or indirect, resulting from misuse or unauthorized use of included assets

This disclaimer is subject to change without prior notice. For questions or clarifications, please contact us at [email protected] .