x402 프로토콜 기반 USDC 결제 통합을 통한 API Pay-per-call 아키텍처 구현
I Built an AI API with Instant USDC Payments (x402 Protocol)
I Built an AI API with Instant USDC Payments (x402 Protocol)
How to build an x402-gated MCP endpoint (with real Base L2 USDC flow)
I Built a Pay-Per-Call Trading Signal API for AI Agents
The AI Agent Economy Needs Payment Rails — Here's What I Built