EngiPay

ENGIPAY – NEXT-GEN WEB3 PAYMENTS & DEFI SUPER APP

Revolutionizing Finance: Where Everyday Payments Meet DeFi Power

WHAT IS ENGIPAY

EngiPay is a next-generation Web3 super app built on StarkNet, designed to unify everyday payments, DeFi investing, and decentralized banking within one secure, intuitive platform. It bridges the gap between traditional finance and decentralized systems, allowing users to send money, earn yield, swap assets, and manage their financial life instantly and affordably.

THE ORIGIN

EngiPay was born from a realization: despite the explosion of DeFi, accessibility, simplicity, and integration were missing. Developers and users faced fragmented systems, steep learning curves, and unreliable bridges. The founding team envisioned a “Lifestyle Finance” ecosystem that works for everyone, not just crypto experts.

The name EngiPay comes from our roots in the Engineer Network, symbolizing innovation, structure, and precision where engineering meets payments.

THE INSPIRATION BEHIND ENGIPAY

People could pay for coffee using Web2 apps like Cash App or PayPal, but doing the same in crypto meant complex interfaces, network delays, and high fees. EngiPay was created to make DeFi feel like banking and banking behave like DeFi.

KEY FEATURES Payments

Instant P2P transfers

QR code merchant payments

Real-time analytics and spending insights

DeFi Suite

Cross-chain swaps via Atomiq SDK (BTC ↔ STRK/ETH)

Yield farming, staking, lending, and borrowing

Live portfolio tracking

Bitcoin Integration

Direct BTC support through Xverse Wallet API

Ordinals and BRC-20 token support

Security

Built on StarkNet’s zero-knowledge rollup for scalability and protection

Non-custodial fund control

Multi-sig and audit-ready smart contracts

UX & Accessibility

Mobile-first, sleek dashboard built with Next.js 15, Tailwind CSS, and Radix UI

Educational layers for first-time DeFi users

Cross-device consistency and performance

WHO ENGIPAY IS FOR

Digital Natives (18–35): Tech-savvy professionals seeking low-fee, borderless transactions and passive DeFi income

Finance Migrants (35–55): Traditional finance users wanting better returns and modern portfolio control

Emerging Market Users: Unbanked and underbanked populations relying on smartphones for financial identity

CHALLENGES FACED BY DEVELOPERS

Cross-chain synchronization between Bitcoin and StarkNet

Gas optimization for microtransactions

Maintaining wallet security during live P2P transfers

Creating DeFi tools that feel like everyday finance

Ensuring real-time analytics without sacrificing speed

HOW WE SOLVED THESE CHALLENGES

Integrated Atomiq SDK for trustless BTC↔STRK swaps

Leveraged StarkNet’s L2 scalability for 1000x faster transactions

Designed smart caching with Redis and PostgreSQL

Built a dual-layer UX: simple for new users, expandable for power users

Used Cairo for high-efficiency smart contracts with provable security

SPONSOR TECHNOLOGIES AND PARTNERS

StarkNet: Layer 2 scalability & ZK-proof security

Atomiq: Cross-chain swaps

Xverse: Bitcoin wallet and Ordinals integration

Chipi Pay: Payment SDK integration

Dojo & ExVest: Developer collaboration & blockchain infrastructure

TECHNICAL ARCHITECTURE

Frontend: Next.js (React 18, TypeScript, Tailwind, Radix UI)

Backend: Node.js, Express.js, PostgreSQL, Redis, JWT authentication

Blockchain Layer: StarkNet + Cairo smart contracts

Integration: Wallets (MetaMask, Xverse, Braavos, ArgentX), REST + GraphQL APIs

Deployment: Vercel frontend, containerized backend via Docker

THE ENGIPAY TEAM

Adenuel Tech – Lead Developer & Architect

The Engineer Network Dev Team – Backend, Smart Contract, and QA Engineers Shared vision: building the financial internet of the future

VISION AND FUTURE GOALS

EngiPay aims to democratize global finance by blending banking simplicity with DeFi freedom. By 2026, plans include:

Launch ENGI Token (governance + utility)

Expand into enterprise payment APIs

Introduce merchant and remittance solutions

Achieve multi-language and global rollout

EngiPay isn’t just another DeFi app — it’s the missing link between modern finance and blockchain simplicity, representing a new era of financial inclusion, transparency, and innovation.

Built With

• and
• atomiq-sdk
• atomiqlabs/sdk
• autoprefixer
• aws-amplify
• bounty
• bug
• cairo
• chipi-pay-sdk
• class-variance-authority
• clsx
• cypress
• eslint
• ethers.js
• express.js
• formal-verification
• framework
• geist-font
• git
• graphql
• husky
• jest
• jwt
• lucide-react
• netlify
• next.js-15.5.3
• node.js
• openzeppelin
• postcss
• postgresql
• prettier
• radix-ui
• railway
• react-18
• redis
• redis-caching
• rest-api
• sats-connect/core
• security
• sequelize-orm
• shadcn/ui
• smart-contract-audits
• starknet
• starknet.js
• tailwind-animate
• tailwind-css-4.1.9
• tailwind-merge
• typescript
• vercel
• vercel-analytics
• websockets
• xverse-wallet-api
• zero-knowledge-proofs