Aether Sentinel

Aether Sentinel is an autonomous DeFi risk management platform that uses Chainlink CRE workflows to monitor vault health on-chain, run AI risk analysis off-chain through DON consensus, and execute protective actions back on-chain — all without human intervention.

How it works:

1. A CRE workflow reads vault state from TokenizedVault on Sepolia using EVMClient.callContract()
2. Sends it to an AI risk engine via HTTPClient.sendRequest() — this runs through DON consensus where multiple nodes independently call the AI engine and agree on the risk score
3. If risk exceeds the threshold, EVMClient.writeReport() autonomously triggers on-chain safeguards on RiskGuardian — emergency pause, reserve adjustment, or emergency governance proposals
4. A second CRE workflow fetches CoinGecko ETH prices via HTTPClient and auto-settles expired prediction markets on-chain
5. Premium deep risk analysis (scenario modeling, mitigation strategies, predictive forecasts) is monetized via x402 HTTP micropayments — $0.001 USDC per request on Base Sepolia
6. Governance is sybil-resistant through World ID — one person, one vote, and CRE workflows can autonomously create emergency proposals for humans to vote on

Problem it solves:
DeFi protocols lose billions annually to risk events that could be prevented with faster responses. Humans can't monitor 24/7 or react in milliseconds. Aether Sentinel replaces slow human monitoring with autonomous AI + Chainlink's decentralized infrastructure, while preserving human governance through World ID-verified voting.

• Chainlink CRE Workflows (TypeScript): 2 workflows using EVMClient (read/write Sepolia contracts), HTTPClient (AI engine + CoinGecko), CronCapability (scheduled triggers), and consensusMedianAggregation (DON consensus on risk scores and prices)
• Smart Contracts (Solidity 0.8.24): TokenizedVault (ERC20 vault), RiskGuardian (CRE_ROLE authorized safeguards), GovernanceModule (World ID + CRE emergency proposals), PredictionMarket (CRE auto-settlement). Plus 3 Oasis Sapphire confidential contracts for encrypted risk thresholds, private liquidation auctions, and confidential treasury management
• Backend (Express.js + TypeScript): REST API with Socket.IO real-time updates, ethers.js Sepolia connection, x402 payment middleware (@x402/express, @x402/evm, @x402/core) for premium endpoint paywall on Base Sepolia
• Frontend (Next.js 14 + React 18): 5 pages — Dashboard, Vault, Prediction Markets, Governance, Premium Analysis. RainbowKit wallet, Zustand state management, real-time WebSocket updates, all showing live Sepolia contract data
• AI Risk Engine (Python FastAPI): scikit-learn + TensorFlow anomaly detection (backend has local fallback formula when engine is unavailable)
• x402: HTTP-native micropayments on Base Sepolia for premium API monetization
• World ID: Sybil-resistant governance voting verification