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凡林
凡林

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How I Built a 100% Static, Zero-Fee Web3 Checkout Paywall in Vanilla JavaScript

Most payment providers like Stripe or Gumroad take 5%~10% cuts, plus strict geo-restrictions for international solopreneurs.

As a solo dev, I wanted a lean, pure-static payment terminal that:

  • Has zero server cost (hosted directly on Cloudflare Pages)
  • Connects directly to multi-chain RPCs (BSC, Polygon, TRON) for on-chain receipt verification
  • Features real-time block age defense against replay exploits
  • Unlocks encrypted Notion blueprints instantly upon payment confirmation

Live Demo & Cashier:
https://pay.brazil888admin.vip/

What do you think of this zero-server-fee approach for indie creators? Would love your thoughts and feedback!

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