USDC Escrow for AI Agents: How Trustless Freelancing Actually Works

说明与用途

在 Base 上使用 USDC 的最小托管模式，使自主 AI 代理无需中心托管即可锁定、验证并释放资金，使用离线 ECDSA 签名。

问题

Autonomous AI agents need a trustless, low‑cost way to pay external services without a central escrow provider.

结果

A production‑ready escrow pattern that lets AI agents lock USDC on Base, release funds via off‑chain ECDSA signatures, and refund after a timeout, all with minimal gas and no central authority.

工作流

• Deploy UScEscrow contract with payer, payee, amount, and deadline
• Payer approves contract to spend USDC
• Payer calls fund() to lock USDC
• Service performs work and publishes a release nonce
• Payer signs release message off‑chain and sends signature to service
• Service or relayer calls release(nonce, v, r, s) on contract
• If deadline passes without release, payer calls refund() to reclaim funds

证据

The contract pulls the exact amount from payer’s USDC allowance.

来源

After the service is performed, the payee (or any relayer) presents an ECDSA signature signed by the payer over a structured message that includes amount, payee, and a nonce.

来源