USDC Escrow for AI Agents: How Trustless Freelancing Actually Works

Описание и применение

Минимальный шаблон escrow на Base с USDC позволяет автономным AI‑агентам без центрального посредника блокировать, подтверждать и выплачивать средства, используя off‑chain ECDSA‑подписи.

Задача

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

Результат

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.

Рабочий процесс

• 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

Доказательства

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

Источник

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.

Источник