USDC Escrow for AI Agents: How Trustless Freelancing Actually Works

说明与用途

在Base上使用USDC托管，让AI代理在提交工作证明后才收到付款，消除了对中心化中介的需求。

问题

AI agents need a trust‑less payment mechanism that ensures the requester pays only after verified completion and the agent receives payment only after the requester confirms the work.

结果

The escrow contract enables micro‑payments in USDC on Base with < $0.001 gas, 2‑second finality, and a simple hash‑based proof system, eliminating the need for centralized intermediaries.

工作流

• 1. Requester approves USDC transfer to escrow contract and calls constructor with agent address, amount, timeout, and optional arbiter.
• 2. Escrow pulls USDC from requester and emits Deposited event.
• 3. Agent listens for Deposited event, performs off‑chain work, hashes the result, and calls submitProof with the hash.
• 4. Requester (or arbiter) reveals the pre‑image via release; if hash matches, escrow transfers USDC to agent.
• 5. If no valid proof before deadline, requester calls refund to retrieve funds.

证据

Typical transaction costs are <$0.001, making micropayments feasible.

来源

The contract holds USDC via ERC‑20 transferFrom; the requester must approve the escrow beforehand (standard ERC‑20 flow).

来源