Non-dev built an agent-only eSIM store; a Claude agent bought one with real USDC
Apprehensive_Big5042 · reddit · 2026-11-05
A non-developer with an ecommerce background used Claude to build Go Bag, a store where AI agents buy prepaid travel eSIMs for their humans — no account or ID, paid per plan in USDC on Base via x402. In the demo, a fresh Claude agent with a $5 wallet parsed the catalog, reasoned about trip dates, recommended a 5GB/15-day $4.99 plan and completed a real on-chain purchase. The writeup details the build: eSIMs issued only after payment settlement, one-time Ed25519 keys for pickup, Claude-driven debugging of Coinbase's x402 directory listing, fresh-agent code reviews, and even an AI-rendered promo video. Stack: Node.js on a VPS behind Cloudflare.
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