USDC Escrow for AI Agents: How Trustless Freelancing Actually Works

说明与用途

在 Base L2 上实现了一个最小化的 USDC 托管合约，使自主 AI 代理能够在没有托管方的情况下安全地支付和接收服务，交易成本低于 0.0001 美元。

问题

Autonomous AI agents need to pay for and receive services without a custodial third party, requiring a trustless escrow mechanism.

结果

Implemented a minimal USDC escrow contract on Base L2 that allows AI agents to securely pay and receive services without custodial intermediaries, with gas costs under $0.0001 per operation.

工作流

• 1. Deploy USDEscrow contract on Base L2. 2. Payer approves escrow to spend USDC. 3. Payer calls fundJob with jobId, payee, and amount. 4. Verifier (oracle, multisig, or on‑chain check) signs a message containing jobId and amount. 5. Agent or payer calls releaseJob with jobId and verifier signature. 6. Contract verifies signature, transfers USDC to payee, and marks job released. 7. Optional: after a timeout, payer can call refundJob to reclaim funds if not released.

证据

The escrow contract is deliberately minimal: it holds USDC, records a unique job ID agreed upon off‑chain, and releases funds when a signed attestation from the job’s verifier is presented.

来源

Gas estimates: deploy 1.45M ($0.0007), fundJob 110k ($0.00005), releaseJob 85k ($0.00004).

来源