How I Built an Autonomous AI Agent That Earns USDC While I Sleep

说明与用途

构建了一个自主 AI 代理，仅处理预付请求，使用 x402 协议和 Base 上的 USDC，实现在无人值守时赚取代币。

问题

When exposing an AI agent as a public HTTP endpoint, every request consumes compute and API credits, making it vulnerable to budget drain by stray bots or curious users.

结果

The system now accepts only pre‑paid requests, preventing budget drain and generating revenue in USDC while the agent runs unattended.

工作流

• Deploy an x402 escrow contract on Base and note its address.
• Create a Cloudflare Worker that verifies the x402‑Payment header, checks signature and allowance, and forwards valid requests to the FastAPI agent.
• Implement the FastAPI agent to run the LLM, log usage, and sweep earned USDC to a personal wallet.
• Set up monitoring with Prometheus and Alertmanager to track usage and revenue.
• Optionally batch claim transactions to reduce gas costs for sub‑cent calls.

证据

The x402 protocol solves this by turning each request into a pre‑paid transaction: the client must attach a valid USDC payment before the server processes the payload.

来源

Deploy it once on Base (via Remix or Hardhat) and note the address.

来源