I put your API behind x402 pay-per-call (USDC on Base) using our open-source Cloudflare Worker kit: paid routes, upstream auth, discovery files, and an AgentReady score with a before/after report. $25: one route deployed. $40: up to 5 routes, auth, discovery files and an audit. $60: adds custom handlers and MCP or agent-card setup. Delivered within 48h. Repo: github.com/astratc/x402-paywall-kit. Contact carl.astratc@proton.me.