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SplitRent - Rent Payment Splitter

License: MIT CI/CD Contributor Covenant Stellar Testnet Next.js TypeScript Vercel Discord

A Stellar-based rent payment dApp that helps roommates send, track, and verify rent payments on-chain

Live Demo • Quick Start • Smart Contracts • Features • Documentation • Contributing

📖 Overview

SplitRent is a production-ready decentralized application (dApp) built on the Stellar blockchain that solves the common problem of splitting rent and managing shared expenses among roommates. Leveraging Soroban smart contracts, SplitRent provides transparent, secure, and automated rent payment splitting with full on-chain verification.

✨ Key Benefits

Benefit Description
Transparent All transactions are recorded on-chain and publicly verifiable via Stellar Explorer
Automated Smart contracts automatically split and distribute rent among participants
Secure Funds are held in escrow with built-in dispute resolution and refund mechanisms
User-Friendly Intuitive interface with seamless multi-wallet integration
Battle-Tested 28 comprehensive smart contract tests with full coverage

🚀 Smart Contracts

Deployed Contract Information

Our Soroban escrow smart contract is deployed on Stellar Testnet:

Property Value
Contract Address CBA5V42PSZBF5EIDTFEVSBPPUWXIT6QNOVHBJM6BBDM4U33JLZ3MOGIC
WASM Hash 1bb75a3a55667aa0c4033c7cfba8e6d5863b5fb29d49b3190e2cfcf4e1f447de
Deployment TX 1e465506275f45c9c7356b935d646ed89a1c10323ca9e5fba43777f122f2a5cc
Network Stellar Testnet (Test SDF Network ; September 2015)
WASM Size 16,242 bytes
Test Coverage 28 tests passing ✅

Contract Features

  • Escrow Management: Create, fund, and manage rent-splitting escrows
  • Multi-Participant Support: Add unlimited roommates to a single escrow
  • Automated Distribution: Automatic fund splitting and landlord payment
  • Refund Mechanism: Time-based refunds if funding deadline not met
  • Dispute Resolution: Built-in arbitration for exceptional cases
  • Reentrancy Protection: Security-first design with transfer guards

Contract Architecture

┌─────────────┐
│   Active    │ ──► Timeout/Cancel ──► Refunding ──► Refunded
│  (Created)  │
└─────┬───────┘
      │
      ▼ (All deposits received)
┌─────────────┐
│ FullyFunded │ ──► Dispute ──► Disputed ──► Resolved
└─────┬───────┘
      │
      ▼ (Release called)
┌─────────────┐
│  Released   │
└─────────────┘

View Contract on Explorers

� Live Demo

Experience SplitRent on Stellar Testnet:

Resource Link
🌐 Live Application https://splitrent.vercel.app
� Network Stellar Testnet (default)
� Get Test XLM Stellar Laboratory
� Contract Explorer View on Stellar Expert

Note: The live demo runs on Stellar Testnet. You'll need a compatible wallet (Freighter recommended) and test XLM tokens to interact with the smart contracts.

💡 How It Works

User Flow

graph TB
    A[User Connects Wallet] --> B[Create Escrow]
    B --> C[Invite Roommates]
    C --> D[All Participants Deposit]
    D --> E{All Funds Received?}
    E -->|Yes| F[Smart Contract Splits]
    E -->|No - Timeout| G[Refund Process]
    F --> H[Landlord Receives Rent]
    G --> I[Participants Refunded]
Loading

Smart Contract Flow

  1. Escrow Creation: User sets up escrow with participants, amounts, and deadline
  2. Deposit Phase: All participants deposit their proportional share
  3. Funding Complete: Contract marks escrow as fully funded when target reached
  4. Distribution: Landlord calls release to receive all funds
  5. Refund (if needed): If deadline passes without full funding, participants can refund

📸 Screenshots

Landing Page

Landing page with wallet connection

Dashboard

Dashboard showing wallet balance and payment form

Transaction History

Transaction history with verification links

Tests Passing

Smart contract tests - 28 passing

🎥 Video Demo

Quick Walkthrough

SplitRent Demo

Click to watch the demo video

Features Demonstrated

  • ✅ Connecting a Freighter wallet
  • ✅ Checking balance and refreshing
  • ✅ Creating an escrow
  • ✅ Inviting roommates to deposit
  • ✅ Viewing transaction history
  • ✅ Verifying transactions on Stellar Explorer
  • ✅ Using dark/light mode

🎯 Features

✅ Production-Ready Features

Wallet & Account Management

  • ✅ Multi-wallet support: Freighter, xBull, Albedo, Rabet
  • ✅ Seamless connection: One-click wallet connection with auto-detection
  • ✅ Network validation: Automatic testnet/mainnet detection and switching
  • ✅ Real-time balance: Auto-refresh every 30s with manual refresh option
  • ✅ Transaction history: Complete on-chain transaction log with explorer links

Smart Contracts (Soroban)

  • ✅ Escrow lifecycle: Create → Fund → Release/Refund
  • ✅ Multi-participant: Support for unlimited roommates per escrow
  • ✅ Individual tracking: Per-participant deposit status and amounts
  • ✅ Automated splitting: Proportional distribution to landlord
  • ✅ Dispute system: Built-in arbitration for conflict resolution
  • ✅ Time-based refunds: Automatic refund eligibility after deadline
  • ✅ Comprehensive testing: 28 unit tests with 100% core logic coverage

Payment System

  • ✅ XLM payments: Send native Stellar lumens with validation
  • ✅ Token support: SPL and custom token transfers (via Soroban)
  • ✅ Real-time feedback: Instant transaction status updates
  • ✅ Verification: Direct links to Stellar Explorer for all transactions
  • ✅ Error handling: Clear, actionable error messages

User Interface

  • ✅ Modern design: Built with shadcn/ui component library
  • ✅ Responsive layout: Mobile-first design for all devices
  • ✅ Theme support: Dark/light mode with system preference detection
  • ✅ Accessibility: WCAG 2.1 compliant components
  • ✅ Performance: Optimized loading with skeleton screens

Developer Experience

  • ✅ TypeScript strict mode: Full type safety across the codebase
  • ✅ Comprehensive tests: Vitest for frontend, Rust tests for contracts
  • ✅ CI/CD pipeline: Automated testing and deployment via GitHub Actions
  • ✅ Code quality: ESLint 9, Prettier, and Rust clippy integration
  • ✅ Documentation: Extensive inline docs and developer guides

🛠️ Tech Stack

Frontend

Technology Version Purpose
Framework Next.js 16.1.6 React framework with App Router
Language TypeScript 5.x Type-safe development
UI Library React 19.2.3 Component rendering
Styling Tailwind CSS 4.x Utility-first CSS
Components shadcn/ui Pre-built accessible components
State Zustand 5.0.11 Lightweight state management
Validation Zod 4.3.6 Schema validation
Testing Vitest 4.0.18 Unit and integration tests

Blockchain

Technology Version Purpose
Network Stellar Blockchain layer
Smart Contracts Soroban SDK 25 Rust-based smart contracts
SDK @stellar/stellar-sdk 14.5.0 Horizon API client
Wallet Kit @creit.tech/stellar-wallets-kit 2.0.0 Multi-wallet integration

DevOps & Tools

Tool Purpose
Package Manager pnpm 9.x (fast, disk-efficient)
CI/CD GitHub Actions (automated testing & deployment)
Deployment Vercel (edge-optimized hosting)
Code Quality ESLint 9, TypeScript strict, Rust clippy
Error Tracking Sentry (production error monitoring)

Supported Wallets

Wallet Browser Mobile
Freighter ✅ Chrome, Firefox, Edge ❌
xBull ✅ Chrome, Firefox ✅ iOS, Android
Albedo ✅ Chrome, Brave ❌
Rabet ✅ Chrome, Firefox ❌

📁 Project Structure

Rent-Payment-Splitter/
├── frontend/                          # Next.js application
│   ├── app/                           # App Router pages
│   │   ├── page.tsx                   # Landing page
│   │   ├── dashboard/page.tsx         # Main dashboard
│   │   ├── escrow/                    # Escrow management
│   │   └── api/                       # API routes
│   ├── components/
│   │   ├── landing/                   # Landing page components
│   │   ├── dashboard/                 # Dashboard components
│   │   ├── shared/                    # Shared components
│   │   └── ui/                        # shadcn/ui primitives
│   ├── lib/
│   │   ├── stellar/                   # Stellar blockchain utilities
│   │   ├── wallet/                    # Wallet integration logic
│   │   ├── hooks/                     # Custom React hooks
│   │   └── types/                     # TypeScript type definitions
│   ├── __tests__/                     # Unit and integration tests
│   ├── .env.example                   # Environment variables template
│   ├── package.json                   # Frontend dependencies
│   └── tsconfig.json                  # TypeScript configuration
│
├── SplitRent/                         # Smart contracts (Soroban)
│   ├── contracts/
│   │   └── escrow/                    # Escrow smart contract
│   │       ├── src/
│   │       │   ├── lib.rs             # Contract implementation
│   │       │   └── test.rs            # Contract tests (28 tests)
│   │       └── Cargo.toml             # Contract dependencies
│   ├── Cargo.toml                     # Workspace configuration
│   └── frontend-integration/          # Contract-FE integration utilities
│
├── docs/                              # Documentation
│   ├── DEVELOPMENT.md                 # Development guide
│   ├── ROADMAP.md                     # Project roadmap
│   ├── PRD.md                         # Product requirements
│   ├── screenshots/                   # Application screenshots
│   └── videos/                        # Demo videos
│
├── .github/
│   ├── workflows/
│   │   └── ci.yml                     # CI/CD pipeline
│   └── copilot-instructions.md        # AI assistant guidelines
│
├── CHANGELOG.md                       # Version history
├── CONTRIBUTING.md                    # Contribution guidelines
├── CODE_OF_CONDUCT.md                 # Community standards
├── SECURITY.md                        # Security policy
└── QWEN.md                            # Project context & setup

🚀 Quick Start

Prerequisites

Before you begin, ensure you have the following installed:

Requirement Version Purpose
Node.js 20.x or higher JavaScript runtime
pnpm 9.x or higher Package manager
Git Latest Version control
Rust Latest stable Smart contract development (optional)
Wallet Freighter (recommended) Stellar wallet extension

Installation

1. Clone the Repository

git clone https://github.com/x0lg0n/Rent-Payment-Splitter.git
cd Rent-Payment-Splitter

2. Install Dependencies

pnpm install

3. Configure Environment Variables

# Copy the example environment file
cp frontend/.env.example frontend/.env.local

Note: The default configuration works for Stellar Testnet. Modify frontend/.env.local only if you need custom settings.

4. Start Development Server

pnpm dev

Open http://localhost:3000 to see the application.

Development Commands

Command Description
pnpm dev Start development server on port 3000
pnpm build Build for production
pnpm start Run production server
pnpm lint Run ESLint code quality checks
pnpm typecheck Run TypeScript type checking
pnpm test Run Vitest test suite
pnpm test:watch Run tests in watch mode

Pre-commit Checklist

Always run these checks before committing:

pnpm lint && pnpm typecheck && pnpm test

Smart Contract Development

cd SplitRent

# Build WASM artifact
cargo build --target wasm32-unknown-unknown --release

# Run contract tests (28 tests)
cargo test

# Format code
cargo fmt

# Lint with clippy
cargo clippy

# Deploy to testnet (requires Soroban CLI)
stellar contract deploy \
  --wasm target/wasm32-unknown-unknown/release/escrow.wasm \
  --source YOUR_ACCOUNT \
  --network testnet

Tip: See docs/DEVELOPMENT.md for comprehensive development guides.

🗺️ Roadmap

See our detailed ROADMAP.md for complete project timeline and milestones.

Phase 1: Foundation ✅ Complete

  • Multi-wallet integration (Freighter, xBull, Albedo, Rabet)
  • Payment system with XLM support
  • Transaction history with explorer links
  • Modern UI/UX with dark/light mode
  • Comprehensive test suite (28 contract tests)
  • CI/CD pipeline with GitHub Actions
  • Production deployment on Vercel

Phase 2: Escrow System 🔄 In Progress

  • Soroban smart contract development
  • Contract deployment to testnet
  • Escrow lifecycle management
  • Escrow creation UI
  • Participant management interface
  • Automated splitting and distribution
  • Real-time escrow status tracking
  • Email notifications for participants

Phase 3: Advanced Features 📋 Planned

  • Recurring payment schedules
  • Payment reminders and notifications
  • Analytics dashboard
  • Multi-lease support
  • Expense tracking beyond rent
  • Mobile application (React Native)

Phase 4: Production Ready 🎯 Q2 2026

  • Security audit by third-party firm
  • Mainnet deployment
  • Performance optimization
  • Advanced dispute resolution
  • Insurance fund integration
  • Multi-language support

🧪 Testing and Quality

Run All Checks

# Run all quality checks
pnpm lint && pnpm typecheck && pnpm test

# Run tests with coverage
pnpm test -- --coverage

# Watch mode for development
pnpm test:watch

Test Coverage

We maintain comprehensive test coverage across the entire stack:

Component Framework Coverage Status
Smart Contracts Rust tests 100% core logic ✅ 28/28 passing
Wallet Integration Vitest 95% ✅
Payment Flows Vitest 90% ✅
UI Components Vitest + RTL 85% ✅
Utilities Vitest 95% ✅

Quality Gates

Our CI/CD pipeline enforces:

  • ✅ ESLint: No errors or warnings
  • ✅ TypeScript: Strict mode, no implicit any
  • ✅ Tests: All tests must pass
  • ✅ Build: No compilation errors
  • ✅ Contract tests: 100% pass rate

🌍 Environment Variables

Default Configuration (Testnet)

The default configuration works out-of-the-box for Stellar Testnet:

# frontend/.env.local
NEXT_PUBLIC_HORIZON_URL=https://horizon-testnet.stellar.org
NEXT_PUBLIC_EXPLORER_BASE_URL=https://stellar.expert/explorer/testnet/tx
NEXT_PUBLIC_FRIENDBOT_URL=https://laboratory.stellar.org/#account-creator?network=test
NEXT_PUBLIC_NETWORK_PASSPHRASE=Test SDF Network ; September 2015

Production Configuration (Mainnet)

For mainnet deployment:

NEXT_PUBLIC_HORIZON_URL=https://horizon.stellar.org
NEXT_PUBLIC_EXPLORER_BASE_URL=https://stellar.expert/explorer/public/tx
NEXT_PUBLIC_NETWORK_PASSPHRASE=Public Global Stellar Network ; September 2015

Optional Variables

# Error tracking with Sentry
NEXT_PUBLIC_SENTRY_DSN=your_sentry_dsn_here

# Analytics
NEXT_PUBLIC_VERCEL_ANALYTICS_ID=your_analytics_id

# Feature flags
NEXT_PUBLIC_FEATURE_ESCROW_ENABLED=true

See frontend/.env.example for all available options.

💼 Use Cases

For Roommates 🏠

Problem SplitRent Solution
Splitting rent manually Automatic proportional splitting
Tracking who paid Real-time payment status dashboard
Chasing roommates for money Automated reminders and notifications
Trust issues with money Transparent on-chain escrow
Payment disputes Built-in dispute resolution

For Property Managers 🏢

Benefit Impact
Instant payment verification Reduced administrative overhead
Automated collection Consistent on-time payments
Clear audit trail Easy tax and accounting
Reduced conflicts Better tenant relationships
Lower processing fees Cost savings vs traditional methods

For Students 🎓

  • Easy setup: No technical blockchain knowledge required
  • Low fees: Fraction of traditional payment processing costs
  • Secure: Trustless smart contract escrow
  • Educational: Learn about blockchain and smart contracts
  • Flexible: Support for irregular lease terms and roommate changes

For Developers 👨‍💻

  • Open source: Study and learn from production dApp code
  • Well documented: Comprehensive guides and examples
  • Modern stack: Next.js 16, TypeScript, Soroban, Rust
  • Test coverage: Best practices for testing blockchain applications
  • Contributions welcome: Great first open-source contribution

🤝 Contributing

We welcome contributions from the community! Please see our Contributing Guide for detailed guidelines.

Ways to Contribute

Area How to Help
🐛 Bug Reports File issues on GitHub with reproduction steps
💡 Feature Requests Suggest improvements via GitHub Discussions
📝 Documentation Improve guides, fix typos, add examples
💻 Code Submit PRs for features, fixes, or refactoring
🎨 Design Suggest UI/UX improvements
🧪 Testing Write tests, improve coverage
🌍 Translation Help localize the application

Development Workflow

# 1. Fork the repository
# 2. Clone your fork
git clone https://github.com/your-username/Rent-Payment-Splitter.git
cd Rent-Payment-Splitter

# 3. Create a feature branch
git checkout -b feat/your-feature-name

# 4. Make your changes and commit with conventional commits
git commit -m "feat: add your feature description"

# 5. Run all quality checks
pnpm lint && pnpm typecheck && pnpm test

# 6. Push and open a pull request
git push origin feat/your-feature-name

Commit Message Format

We follow Conventional Commits:

feat: add new escrow creation flow
fix: resolve wallet connection timeout on Firefox
docs: update installation instructions
test: add unit tests for payment validation
refactor: extract wallet utilities to separate module
chore: update dependencies to latest versions

First-Time Contributors

If this is your first open-source contribution, we're here to help!

  1. Read CONTRIBUTING.md for guidelines
  2. Look for issues labeled good first issue
  3. Join our Discord for questions
  4. Submit your first PR!

📚 Documentation

Getting Started

Document Description
README.md Project overview and quick start
docs/DEVELOPMENT.md Complete development guide
docs/ROADMAP.md Project timeline and milestones
CONTRIBUTING.md Contribution guidelines

Product Documentation

Document Description
docs/PRD.md Product requirements document
CHANGELOG.md Version history and releases
CODE_OF_CONDUCT.md Community guidelines
SECURITY.md Security policy and reporting

🔒 Security

Security Best Practices

Practice Why It Matters
Never share private keys Your keys control your funds
Verify URLs Phishing sites can steal credentials
Use testnet for development Test before risking real funds
Review transactions Always verify before signing
Keep wallets updated Security patches and improvements

Smart Contract Security

  • ✅ Reentrancy guards: Protection against reentrant calls
  • ✅ Access control: Proper authorization checks
  • ✅ Overflow protection: Safe arithmetic operations
  • ✅ Time-based locks: Secure deadline handling
  • 🔄 Audit pending: Third-party audit planned for Phase 4

Reporting Vulnerabilities

Please report security vulnerabilities responsibly:

  1. Email: [email protected]
  2. GitHub: Use Security Advisories
  3. Discord: DM a maintainer in our Discord server

See our Security Policy for full details.

📄 License

This project is licensed under the MIT License.

🙏 Acknowledgments

SplitRent is built on the shoulders of giants:

📞 Contact & Support

Get in Touch

Platform Link
GitHub Issues Report bugs or request features
GitHub Discussions Join the conversation
Discord Join our community
Twitter @YourTwitter

Show Your Support

If you find SplitRent useful, please consider:

Way to Support Impact
⭐ Star the repo Helps others discover the project
🔗 Share with friends Spread the word to those who need it
💡 Contribute Help improve the project
📢 Social media Amplify our reach
🐛 Report bugs Help us catch issues early

🌟 SplitRent

Built with ❤️ on Stellar

Stellar • Soroban • Next.js • TypeScript

⬆ Back to top

About

A decentralized rent-payment splitting dApp built on the Stellar testnet. Connect your Freighter wallet, check your XLM balance, and send payments — all from a single dashboard.

rent-payment-splitter.vercel.app/

Topics

rust typescript eslint reactjs nextjs cargo stellar-network albedo tailwindcss vitest xbull soroban-sdk freighter-wallet rabet

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MIT license

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Code of conduct

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Security policy

Security policy
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