MITU - MNEE Payroll

Inspiration

Manual payroll wastes time and risks errors. We wanted to automate salary payments using Ethereum and MNEE stablecoin, keeping it non-custodial so employers never lose control of their funds.

What it does

MITU automates employee payments on Ethereum. Connect MetaMask, add employees, click "Run Payroll" — all salaries are paid instantly in MNEE tokens via batch transfers with AI duplicate prevention.

How we built it

Frontend: Next.js 14 + RainbowKit + wagmi/viem
Backend: Node.js + Express + PostgreSQL + Prisma
Blockchain: Solidity smart contracts (SimpleBatchTransfer.sol)
Network: Ethereum Sepolia testnet
Token: MNEE ERC-20 stablecoin

Challenges we ran into

Duplicate payment prevention was complex — we built three-layer validation:

Pre-approval check
Pre-transaction validation
Always-record policy for blockchain sync

Managing batch approvals and gas optimization required careful smart contract design. Database-blockchain consistency needed robust error handling with idempotency keys.

Accomplishments that we're proud of

✅ Non-custodial architecture keeps funds secure
✅ Batch transfers save gas cost ✅ Three-layer duplicate prevention stops errors before on-chain execution
✅ Production-ready with full audit logs and comprehensive error handling

What we learned

Smart contract security is critical — validation at every layer
Non-custodial UX requires careful transaction flow design
Blockchain + database consistency needs multiple validation layers
MNEE stablecoin enables programmable payments with predictable value
Gas optimization matters: batch operations dramatically reduce costs

What's next for MITU - MNEE Payroll

🚀 Autonomous scheduling with smart contract budgets
🚀 Multi-signature approvals for enterprise security
🚀 Multi-chain support (Polygon, Arbitrum, Base) for lower fees