USDC Escrow for AI Agents: How Trustless Freelancing Actually Works

说明与用途

在 Base 上实现了一个最小化的 USDC 代管智能合约，自动在 AI 代理签署工作完成证明后支付报酬，消除了对可信中介的需求。

问题

Autonomous AI agents need to exchange services for payment without trusting a human intermediary, leading to risk of fraud or non‑payment.

结果

Implemented a minimal, auditable USDC escrow contract on Base that automatically releases funds to an AI agent upon receiving a valid off‑chain signature, eliminating the need for custodial intermediaries and reducing dispute risk.

工作流

• 1. Client defines job and generates jobId
• 2. Client approves escrow contract to spend USDC
• 3. Client calls deposit() to lock funds
• 4. Agent processes request and signs completion proof (signature + outputHash)
• 5. Agent calls release(signature,outputHash) on escrow contract
• 6. Contract verifies signature, transfers USDC to agent
• 7. If agent fails to release within REFUND_DELAY, payer can call refund() to reclaim funds

证据

The contract inherits ReentrancyGuard to mitigate the classic reentrancy attack vector

来源

Base is an Ethereum‑compatible rollup with low transaction fees (typically <$0.001) and fast finality (~2 seconds)

来源