We Tested Our Own x402 Agent Payments With Real Money — Found a Bug, Fixed It, Here’s the Proof

说明与用途

x402支付网关在Base主网的AI代理支付过程中因OFAC制裁缓存过期导致5 MB下载，导致支付超时。通过将下载移出支付路径、设置每小时缓存刷新以及将授权窗口扩大到600秒，所有GPU订单均能在秒级完成。

问题

The x402 payment endpoint failed for some GPU jobs due to a stale OFAC sanctions-list cache causing a 5 MB Treasury re‑download that exceeded the 120‑second authorization window.

结果

All eight GPU jobs settled with on‑chain hashes; two previously failing jobs now complete in 18.8 s. The payment path no longer stalls due to cache refresh.

工作流

• 1. Submit GPU job request to public x402 endpoint.
• 2. Endpoint issues 402 Payment Required challenge.
• 3. Agent signs authorization and sends payment request.
• 4. System checks OFAC cache; previously triggered a 5 MB download.
• 5. Payment processed and on‑chain transaction confirmed.
• 6. Job executed and resources torn down.

证据

2 of 8 jobs failed on a 120‑second payment authorization window.

来源

Root cause wasn’t price lookup or payment logic — it was our OFAC sanctions‑list cache going stale, triggering a live 5MB Treasury re‑download on every payment with no timeout.

来源

Re‑ran the exact failing config: settled in 18.8 seconds.

来源