⚡ Code. Cost. Control.

CloudGauge — Real-time cost intelligence directly inside your code editor.

---

📌 Overview

Modern developers write code without visibility into the cloud costs it generates. Costs are only realized after deployment — often leading to unexpected bills.

This project solves that by shifting cost awareness from billing time → coding time.

We provide:

• Real-time cost estimation
• Optimization suggestions
• PR-level cost impact tracking
• Tamper-proof cost logs using Web3

---

❗ Problem

• No cost visibility during development
• Billing feedback delayed by weeks
• Expensive APIs and cloud usage go unnoticed
• No accountability for cost-heavy code changes

---

💡 Solution

“CloudGauge - ESLint for Cloud Costs”

A system that:

• Analyzes your code as you write
• Estimates cloud cost in real time
• Suggests optimizations
• Tracks cost changes across PRs
• Ensures integrity via cryptographic proofs

---

✨ Features

🔹 Real-Time Cost Estimation

• Detects cloud/API usage from code
• Estimates monthly cost instantly

🔹 Optimization Suggestions

• Suggests cheaper alternatives:
  • GPT-4 → GPT-3.5
  • Add caching
  • Batch requests

🔹 PR Cost Diff

• Compares cost before vs after changes
• Prevents expensive code merges

🔹 Tamper-Proof Cost Logs (Web3)

• Generates SHA-256 hash of cost reports
• Stores hash on blockchain (Sepolia)
• Ensures reports cannot be modified

🔹 Developer-First Experience

• Integrated into VS Code
• Inline feedback + suggestions
• ESLint-like workflow

---

🏗️ Architecture

VS Code Extension
        ↓
Backend (TypeScript)
        ↓
AST Analysis Engine
        ↓
Cost Estimation Engine
        ↓
Database (Prisma)
        ↓
Hash Generation (SHA-256)
        ↓
Blockchain (Sepolia)

---

⚙️ Tech Stack

🔹 Frontend

• VS Code Extension API

🔹 Backend

• TypeScript
• Node.js
• AST Parsing (Babel / TypeScript Compiler API)

🔹 Database

• Prisma ORM
• PostgreSQL / MongoDB

🔹 Web3 Layer

• Solidity (Smart Contract)
• Ethers.js
• Sepolia Testnet

---

🔍 How It Works

1. Code Analysis

• Parses code using AST
• Detects usage of:
  • LLM APIs
  • Cloud services
  • External APIs

2. Cost Estimation

• Maps usage → pricing models
• Calculates monthly cost projection

3. Optimization Engine

• Identifies expensive patterns
• Suggests cost-saving alternatives

4. PR Cost Diff

• Compares:
  • Base branch cost
  • New branch cost
• Outputs cost difference

5. Tamper-Proof Logging

• Converts report → JSON
• Generates SHA-256 hash
• Stores:
  • Full report → DB
  • Hash → Blockchain

---

🔐 Web3 Integration

We use Web3 only for verification, not computation.

Flow

Cost Report → Hash → Store on Sepolia

Benefits

• Immutable records
• Verifiable cost history
• Audit-ready system

---

🧪 Demo Flow

1. Open code in VS Code
2. Detect API usage
3. Show cost estimate
4. Display optimization suggestions
5. Show PR cost difference
6. Modify report → verification fails (tampering detected)

---

🛠️ Setup

🔹 Backend

npm install
npm run dev

🔹 Environment Variables

DATABASE_URL=...
RPC_URL=...
PRIVATE_KEY=...
CONTRACT_ADDRESS=...

🔹 VS Code Extension

npm install
npm run compile
# Press F5 to run extension

🔹 Smart Contract

• Deploy contract on Sepolia
• Store contract address in .env

---

📊 Example

// Before
use GPT-4 → $200/month

// After optimization
use GPT-3.5 → $40/month

// Add caching
→ $15/month

---

🚀 Future Scope

• CI/CD integration (PR gating)
• Multi-cloud support (AWS, GCP, Azure)
• Advanced AI-based optimization
• Cost heatmaps in editor
• Enterprise dashboards
• On-chain audit dashboards

---

🤝 Contribution

Contributions are welcome!

• Fork the repository
• Create a feature branch
• Submit a pull request

---

🧠 Key Insight

“We don’t just show developers that their code is expensive — we tell them how to make it cheaper, instantly.”

---

📜 License

MIT License