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, led by its Canadian founder
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.
Outcome
The payout contract is deployed and verified on Polygonscan, and investor payouts reconcile automatically against the converted rewards.