USDC Escrow for AI Agents: How Trustless Freelancing Actually Works

Описание и применение

Минимальный escrow‑контракт на USDC позволяет AI‑агентам получать оплату только после доказательства выполнения задачи, обеспечивая доверие без посредников.

Задача

AI agents need a payment mechanism that guarantees funds are released only after verifiable task completion, while protecting callers from paying for incomplete or malicious results.

Результат

The escrow pattern enables trustless AI freelancing with minimal on‑chain logic, reducing dispute risk and ensuring payment only upon verifiable completion.

Рабочий процесс

• 1. Client calls deposit(taskId, agentAddress, amount, timeout) to lock USDC.
• 2. Agent performs the task off‑chain and signs keccak256(taskId, payer, agent, amount).
• 3. Agent or a relayer calls release(taskId, signature) to trigger fund transfer.
• 4. If no valid signature before deadline, client calls refund(taskId) to reclaim funds.

Доказательства

The contract pulls USDC from the caller’s wallet (via transferFrom) and locks it.

Источник

Agent signs keccak256(taskId, payer, agent, amount) and publishes the signature.

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If the deadline passes without a valid signature, the caller invokes refund(taskId).

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