# x402 Seller Kit

> Cloudflare Worker template to sell a digital file for USDC on Base with x402

- Website: https://x402-seller-kit.soloearn.workers.dev
- AZN8 listing: https://azn8.com/listing/x402-seller-kit
- Pricing: $29 USDC one-time · One-time
- Categories: [Developer tools](https://azn8.com/category/developer-tools), [Finance](https://azn8.com/category/finance)
- Listed: 2026-10-07
- Updated: 2026-10-07
- JSON: https://azn8.com/api/v1/listings/x402-seller-kit

## About

A tested Cloudflare Worker template for selling a digital download for USDC on Base without a facilitator: an x402 v2 402 challenge with Bazaar metadata, an order-code checkout (unique exact amount + secret order ID) so public tx hashes can't be claimed by someone else, one-time claims in D1, rate limits, RPC fallbacks, a written threat model and a list of free x402 directories. $29 USDC one-time. Free starters (Cloudflare x402-proxy-template, x402 quickstarts) exist; this adds the human checkout and claim security. Free preview and guide on the site.

[Read the free preview](https://x402-seller-kit.soloearn.workers.dev)