🧠 Project Name:
Multi-Provider API Key Rotating Chatbot
📋 Project Summary
creating a free public chatbot that uses multiple API keys collected from family and
friends.
Each person provides API keys for different AI models (Gemini, ChatGPT, LLaMA,
Grok, DeepSeek, etc.).
We will have around 250 API keys in total (50 people × 5 keys each).
The system automatically rotates through these keys — using one active key at a
time — until a key expires, fails, or reaches its limit.
Once a key fails, the system switches to the next available key without user
interruption.
At the start, all users can chat for free.
Later, we will introduce premium and free plans based on better AI models or faster
access.
🎯 Main Goals
✅ Use all API keys efficiently without wastage.
✅ Automatic switching when a key expires.
✅ Support multiple AI providers (different companies, APIs).
✅ Keep the chatbot always online as long as keys are available.
✅ Start free for users, monetize later (paid features).
✅ Simple at first, scalable for future upgrades.
🏛 System Architecture Overview
Layer Role
Frontend (Web Chat Page) Users send and receive messages
Backend Server (Node.js) Handle chats, manage API keys, control AI provider
access
Database (SQLite/PostgreSQL) Store and track all API keys (provider, status, expiry)
API Key Manager Choose keys, rotate keys, handle errors
AI Provider Connectors Specific adapters for Gemini, ChatGPT, Grok, etc.
Monitoring System (later) Track key usage, failures, costs
🔥 Key Features
Feature Description
Multi-AI Support: Gemini, ChatGPT, Grok, DeepSeek, LLaMA, etc.
API Key Rotation: Use a key until it expires, then switch
Key Status Tracking: Mark keys as Active, Expired, Failed
Error Handling: Detect and replace failed keys automatically
Simple Web Chat: Basic UI for sending/receiving messages
Scalability Ready: Easy to add more keys or providers later
Free Users: Open access initially
Monetization: Plan Add premium tier later with better models
📦 Components in Detail
Component Responsibility
Frontend Chat Page User sends/receives AI messages
Backend API Server Process requests securely
API Key Manager Track, rotate, and validate API keys
AI Provider Adapter Talk to different AI systems (Gemini, ChatGPT, etc.)
Database Safely store API keys, statuses
Error Handler Detect API errors and rotate keys
User Management (Later) Separate free/premium users
🛡 Security Measures
API keys never exposed to frontend (only server can access).
API keys stored encrypted in the database.
Limit per-user chat speed (optional) to avoid burning keys too fast.
Daily automatic monitoring of active/expired keys.
📈 Future Expansion Ideas
🏷 Add "Choose your AI" feature (users pick Gemini or ChatGPT manually).
💳 Paid subscriptions (faster model access, higher limits).
📊 Admin Dashboard (to track key usage, server load).
📚 Save chat history for users (optional).
🤖 Fine-tuning AI instructions depending on user type.
💡 Why This Project is a Good Business Idea
You’re using free / unused resources (your friends' keys).
No upfront cost except for hosting the server.
Free chatbots attract a lot of users if well marketed.
You can start monetizing easily later.
You can expand into enterprise AI tools if the system proves stable.
🗺 Visual Summary Map
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Users (Free Chat)
↓
Frontend Web Page (Chat Interface)
↓
Backend Server (Node.js + Express)
↓
API Key Manager (Switch keys on failure)
↓
Call Right AI Provider (Gemini, ChatGPT, etc.)
↓
Return AI Response
🚀 In Simple Words:
You are building a smart, free, always-available chatbot, powered by hundreds of AI
API keys, with automatic fallback and future premium options.
🛠 Technology Stack
Layer Tech
Frontend HTML + CSS + Vanilla JS (easy start) or React.js (later)
Backend Node.js + Express
Database SQLite (small) → PostgreSQL (large)
Hosting Vercel (Frontend) + Railway/Render.com (Backend)
Security Encryption of API keys
📋 To Start You Will Need:
Node.js installed
SQLite database (simple setup)
5–10 initial API keys (for testing)
Basic hosting account (free tier at first)
⚡ Summary in One Sentence:
You are building a fault-tolerant, multi-provider AI chatbot system that runs 24/7
using free donated API keys, with future plans to add monetization by offering
premium AI access.
