Smart contractsLivePolygon

Mynty AI: mining-reward bridge to USDT on Polygon

Converts BTC, ETC, DOGE, and XMR mining rewards into USDT on Polygon and pays investors automatically.

My role
Backend, smart contract, and investor dashboard
Year
2025
Status
Live
Context
Mynty AI Tech Solutions
Screenshot of Mynty AI Bridge

The problem

Investors in mining machines earned rewards in four different coins on four different chains. Paying them out manually was slow, error-prone, and impossible to audit.

What I built

  • Built a NestJS backend that tracks each machine's rewards and schedules conversions through the ChangeNow API.
  • Wrote the Polygon smart contract that receives the converted USDT and distributes it to investors by their share, verified on Polygonscan.
  • Built the Next.js investor dashboard for balances, payout history, and machine ownership.
  • Used PostgreSQL and ethers.js to reconcile off-chain conversions with on-chain payouts.
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