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

说明与用途

一个在 Base 上运行的自治代理，通过 X402 标头接受 USDC 支付，验证签名，排队任务并运行 LLM 推理，实现持续运行而无需手动计费。

问题

Developers need a low‑cost, self‑paying LLM‑driven service that can run continuously without a traditional SaaS billing backend.

结果

The agent earns USDC per call, automatically verifies payments, queues heavy compute, and remains online without manual billing.

工作流

• 1. Deploy Cloudflare Workers as a global entry point that checks the X402‑Payment header and verifies the signature against the agent’s wallet address.
• 2. Forward validated requests to a long‑running Node.js Agent Worker.
• 3. Agent Worker receives request, enqueues it in a BullMQ task queue backed by Redis.
• 4. Worker processes the queue, runs the LLM inference (e.g., Hugging Face Transformers), and returns the result.
• 5. Agent monitors its USDC wallet balance via ethers.js for reporting; it never spends funds.
• 6. If payment verification fails or the task fails, the system retries or rejects the request.

证据

The agent needs a private key to sign USDC transfers.

来源

Cloudflare Workers act as a cheap, globally distributed entry point that enforces the x402 payment header before forwarding the request to the actual logic.

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The agent never initiates a transfer; it only reads its balance to display stats.

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