Aura

Problem Statement

Aura Wallet is a cross-chain stablecoin yield optimization platform that helps users earn consistent returns from 4.3% to 13%+ APY without using leverage. By connecting your existing Coinbase or Gemini wallets, Aura automatically discovers and executes the best yield strategies across multiple blockchains while keeping your funds liquid in stablecoins.Core Value PropositionStable Returns, No Leverage: Access yields starting at 4.3% baseline up to 13%+ through lending protocols, liquidity provision, and staking - all without leverage riskStay Liquid: Maintain full liquidity with USDC and other stablecoins while earning competitive yieldsConnect Existing Wallets: Seamlessly integrate with your Coinbase or Gemini accounts - no need to create new walletsAI-Powered Strategy Discovery: Autonomous agents using Coinbase AgentKit continuously scan DeFi protocols to identify new yield opportunitiesCross-Chain Optimization: Automatically move funds between Base, Avalanche, and other chains to capture the best risk-adjusted yieldsAutonomous Agent TechnologyCoinbase AgentKit Integration: Enables AI agents to autonomously interact with blockchain protocols and discover yield opportunitiesx402 Payment Protocol: Agents use micropayments to access premium DeFi analytics and risk scoring APIs for better yield discovery24/7 Opportunity Scanning: Agents never sleep - constantly monitoring protocols for new pools, rate changes, and emerging opportunitiesSelf-Executing Strategies: Once opportunities are identified and verified, agents can execute rebalancing without manual interventionCircle USDC & CCTP IntegrationNative USDC: Uses Circle's fully-reserved, regulated USDC stablecoin backed 1:1 by US dollarsSecure Cross-Chain Transfers: Circle's CCTP (Cross-Chain Transfer Protocol) enables native USDC movement without wrapped tokens or bridge risksFull Transparency: Every CCTP transfer is verifiable on-chain with Circle's attestation service providing cryptographic proofNo Bridge Risk: Unlike traditional bridges, CCTP burns USDC on the source chain and mints on destination - eliminating wrapped token vulnerabilitiesRegulatory Compliance: Circle's infrastructure ensures all transfers meet regulatory standards with complete audit trailsKey FeaturesMulti-Chain Stablecoin Support: Native USDC across Base and Avalanche via CCTP, with PYUSD integration for additional yield sourcesIntelligent Rebalancing: AI agents monitor yield differentials and automatically rebalance when spreads exceed thresholdsRisk-First Approach: All strategies are vetted for safety - no leverage, no impermanent loss risks, just sustainable yieldsTransparent Operations: Natural language chat interface explains why funds are moved and which strategies are being used

Solution

Architecture focused on Autonomous Yield GenerationWe built Aura as an autonomous yield aggregation platform combining Coinbase AgentKit for blockchain interactions, x402 for premium data access, Circle's CCTP for secure transfers, and AI agents for intelligence.Autonomous Agent Implementation (AgentKit + x402)Coinbase AgentKit:Provides AI agents with native blockchain capabilities - reading contracts, checking APYs, executing transactionsAgents can autonomously discover new lending pools, LP opportunities, and staking rewardsBuilt-in safety rails ensure agents only execute pre-approved strategy types (no leverage, no risky protocols)Session key management allows agents to operate without accessing private keysx402 Payment Protocol Integration:Agents use micropayments (fractions of cents) to access premium DeFi dataRisk scoring APIs: Pay $0.001 per query to get protocol safety scoresYield analytics: Access historical APY data and volatility metricsSmart routing: Pay for optimal path finding across multiple protocolsThis creates a sustainable model where agents only pay for valuable data that leads to better yieldsAutonomous Discovery Process:AgentKit-powered agents scan all major DeFi protocols every 60 secondsUse x402 to query risk scores for new opportunities (filtering out risky protocols)Compare yields across chains accounting for gas costsExecute rebalancing when opportunities exceed thresholdsAll actions logged and explained via natural languageCircle USDC & CCTP ImplementationUSDC as Primary Asset: Chose Circle's USDC for its regulatory compliance and full reservesCCTP Security Benefits:Enhanced Security: No wrapped tokens means no bridge TVL riskComplete Visibility: Every transfer generates verifiable on-chain attestationFaster Settlement: ~15 minute finality with cryptographic proofLower Risk: Eliminates bridge hacks that have caused billions in lossesTechnical CCTP Flow with AgentKit:Agent identifies yield opportunity on different chainAgentKit initiates CCTP burn transaction on source chainCircle's attestation service witnesses and signs the burnAgent retrieves attestation and completes mint on destinationFunds deployed to higher-yielding protocol automaticallyYield Discovery Engine ArchitectureGraphAPI (deprecated but still remnants for future dev -ASI Fetch.ai Agents: Core intelligence layer for strategy evaluation)AgentKit Integration: Enables agents to execute discovered strategies on-chainx402 Data Layer: Access to premium analytics for better decision makingStrategy Filters: Only non-leveraged positions yielding 4.3%+ consideredRisk Scoring Pipeline:Query protocol TVL and age via AgentKitPay for detailed risk analysis via x402Cross-reference with on-chain dataOnly proceed if risk score meets thresholdsTechnical Implementation Highlights1. AgentKit Autonomous Operations:Agents granted limited session keys for specific operationsCan read all DeFi protocols and check yieldsCan execute pre-approved transaction types (deposits, withdrawals, CCTP transfers)Cannot access user private keys or execute unauthorized operations2. x402 Micropayment Efficiency:Average cost: $0.05-0.10 per day for continuous monitoringROI: 0.001% cost for discovering 2-5% yield improvementsPayment channels ensure no gas overhead for micropaymentsAgents optimize query patterns to minimize costs3. Multi-Layer Security:AgentKit: Session keys with limited permissionsCCTP: No bridge risk with burn-and-mintx402: Pay only for verified data sourcesSmart contracts: Time-locked operations for safetyPartner Technology BenefitsCoinbase AgentKit: Enables true autonomous blockchain operations without compromising securityx402 Protocol: Access to premium DeFi data and risk analytics on a pay-per-use basisCircle (USDC & CCTP): Secure, transparent, regulatory-compliant infrastructure for cross-chain operationsASI Agents: 24/7 intelligent monitoring and decision makingCoinbase/Gemini Wallets: Trusted custody while Aura handles optimizationThe system achieves true autonomy - agents discover opportunities via AgentKit, verify them with x402 data, execute via CCTP, all while maintaining complete security and transparency. Users simply connect their wallets and watch their stablecoin yields grow from 4.3% to 13%+ automatically.Technical Stack SummaryFrontend: Next.js 15, React 19, TypeScript, Tailwind CSS v4Wallets: Coinbase Wallet SDK, Gemini integrationAgents: Coinbase AgentKit, ASI Fetch.ai uAgents, x402 micropaymentsCross-Chain: Circle CCTP for native USDC transfersChains: Base Sepolia, Avalanche Fuji (testnets)Smart Contracts: Deployable wallet contracts with session keysYield Sources: Aave, Compound, Benqi, and other non-leveraged protocols