We just tested our x402 payment infrastructure with real micropayments on Base L2.

Replace API keys with pay-per-call. Agents send USDC on Base, gateway validates payment, proxies to backend, returns data.

Tested $2.27 USDC across 50+ API calls. Everything worked.

Tech: Node.js + Fly.io + Base L2 + x402

All 4 backend APIs deployed in ~10 min. Agent integration: <5 min.

Building the payment layer for the agent economy.

GitHub: https://github.com/obcraft/Apiosk