npm create @scriptmasterlabs/x402 my-api — one command builds a paid MCP server, a paywall in front of an API you already run, or a paid file store, on Express, Hono, Next.js, Cloudflare Workers or FastAPI. AI agents pay per call in USDC on Base via x402: your server answers HTTP 402 with a price, the agent signs, settlement lands straight in your wallet. No API keys, no accounts, no invoices; failed calls are never charged. Ships an AGENTS.md so Claude Code or Cursor can install it, a receipts page and a live paid-calls badge. Settles through OMNIGATE by default (Script Master Labs' facilitator): the 0.005 USDC fee is an optional leg — standard payments settle with the fee waived inside a published daily budget. Tested with the stock x402 client on every stack, plus a real $0.01 USDC settlement on Base through a kit-built app (both wallets ours — it proves the kit works end to end). Free, MIT. npm: @scriptmasterlabs/create-x402 · GitLab: gitlab.com/script-master-labs-llc-group/x402-kit · GitHub: github.com/Timwal78/x402-kit · Tutorial on the starter page linked above.