USDC Escrow for AI Agents: How Trustless Freelancing Actually Works

Description and use

A minimal USDC escrow contract on Base enables trustless payment locking and release for autonomous AI agents, eliminating the need for centralized payment systems.

Problem

Clients and autonomous AI agents need a way to lock and release payments without a central broker, avoiding KYC/AML and single points of failure.

Outcome

A trustless escrow pattern that locks USDC until an AI agent supplies proof, enabling secure, KYC‑free freelancing on Base.

Workflow

• Deploy a minimal USDC escrow contract on Base
• Payer approves USDC transfer to the contract
• Payer calls deposit() to lock funds
• Agent performs the agreed work
• Agent generates a proof (e.g., SHA‑256 of output + nonce)
• Agent calls release() with the proof to claim payment
• If the agent never releases, payer can call refund() after 7 days

Evidence

A trustless escrow built on a programmable ERC‑20 token (USDC) lets both parties lock funds in a smart contract that releases them only when a pre‑agreed condition is satisfied

Source

After a timeout (<code>refund()</code>), the payer can reclaim funds.

Source