Nexa is a complete, ready-to-deploy digital products marketplace built with Node.js, Express, and Prisma on the backend, paired with a lightweight, framework-free HTML/CSS/JS frontend. It's designed for creators and small businesses who want to sell software, templates, SaaS tools, or digital downloads — including direct crypto payments — without stitching together multiple third-party services.

Key features:

• Full authentication system — JWT access + refresh tokens, registration, login, password reset, and profile management.

• Real crypto payments, not just a "pay with crypto" button — USDT payments on BNB Smart Chain are verified directly on-chain (transaction hash, sender, amount, and confirmations are checked server-side), so an order is only marked paid after genuine blockchain confirmation — never on trust in the frontend alone.

• Admin dashboard — manage orders, users, payments, and products, and configure the payout wallet address directly from the panel, no code edits or redeploys needed.

• Subscription plans with usage limits — define plans that cap how many times a customer can use a feature (for example, limit invoice exports to 5 per billing cycle), enforced server-side.

• Automatic customer library — once a payment is confirmed, the product instantly unlocks in the buyer's "My Products" library for download or launch.

• Bilingual, responsive UI — full English/Persian support with proper RTL layout, light/dark themes, and a mobile-optimized layout.

• Custom order requests + AI product advisor — built-in forms for bespoke product requests and a rule-based (upgradeable to real API) recommendation assistant.

What's included: full frontend + backend source code, Prisma schema, database seed script, and setup documentation to get the API and storefront running locally or on your own server.

Ideal for: developers and small teams who want a self-hosted marketplace with genuine crypto checkout, or as a resellable script/template for other builders who need the same.