SeiMoney — Enterprise DeFi on Sei

Inspiration

Managing payments and savings in Web3 is still complex and risky — funds get lost, and group tools are manual or unsafe. I wanted to build a platform on Sei Network that makes enterprise-grade DeFi as easy and secure as modern banking.

What I learned

While building SeiMoney, I deepened my understanding of CosmWasm smart contracts, transaction safety, and sub-second finality. I also explored how AI agents can automate yield farming and payment flows.

How we built it

We developed a full-stack app on Sei:

• Smart contracts in Rust/CosmWasm for escrow, vaults, savings pots, and payment streams.
  
• Backend API in Node.js with real-time indexing of onchain data.
  
• Frontend in React + TypeScript, mobile-ready PWA.
  
• Integration with Keplr, Leap, and MetaMask wallets.

Challenges

The main challenges were:

• Optimizing contract gas usage to stay fast on Sei’s network.
• Designing secure escrow logic with automated refunds.
• Coordinating a responsive UI with sub-second chain finality.

Built With

• blockchain
• defi
• typescript