We got AI agents paying for GPU compute in real time (x402 + USDC, actually live)

Quick one for the community. I've been building Kilawatt Cloud (multi-provider GPU orchestration, kind of a load balancer across RunPod, Vast.ai, etc.) and this week we got x402 fully live, not just tested.

For anyone who hasn't run into it yet: x402 revives the old HTTP 402 "Payment Required" status code. An AI agent hits our API, gets a 402 challenge back, pays instantly in USDC on Base, and gets a running GPU instance in the same request. No card, no signup, no human in the loop.

We ran two real settlements today. Real tx hashes, real Stripe payouts on the other end. Not a testnet demo.

Why I think this matters beyond just us: agents are becoming real economic actors that need to pay for infrastructure autonomously, and almost nobody's built the compute-grade version of this yet, most x402 integrations so far are small stuff like API metering or content paywalls. GPU compute is a much bigger, more capital-intensive use case to get working end to end.

Happy to answer questions about the implementation, the CDP/Coinbase side, or what broke along the way (a lot did).