Monad Launchpad - Bonding Curve Token Factory

A production-ready smart contract suite for launching tokens with automated bonding curve mechanics and Uniswap V2 liquidity migration on the Monad blockchain.

Overview

The Monad Launchpad is a decentralized token launch platform that implements a bonding curve mechanism for fair token distribution. When tokens reach their bonding curve target, liquidity is automatically migrated to Uniswap V2, enabling seamless transition to decentralized exchange trading.

Key Features

Automated Token Launch: Deploy ERC20-compatible tokens with a single transaction
Bonding Curve Mechanics: Fair price discovery through constant product formula (x * y = k)
Automatic Liquidity Migration: Seamless transition to Uniswap V2 at bonding curve completion
Built-in Fee System: Configurable trading fees with admin fee collection
Reentrancy Protection: OpenZeppelin ReentrancyGuard implementation for secure transactions
Upgradeable Architecture: Owner-controlled parameter adjustments without redeployment

Smart Contract Architecture

PumpCloneFactory

The main factory contract that manages token launches and trading operations.

Core Functions:

launchToken(string name, string symbol) - Deploy a new token with initial bonding curve
buyToken(address token) - Purchase tokens through the bonding curve
sellToken(address token, uint256 amount) - Sell tokens back to the bonding curve
claimFee(address to) - Owner-only fee withdrawal

Bonding Curve Parameters:

Virtual ETH Reserve: 0.015 ETH
Virtual Token Reserve: 1,073,000,000 tokens
Real Token Reserve: 793,100,000 tokens
Trading Fee: 1% (100 BPS)
Liquidity Migration Fee: 0.018 ETH

PumpToken

Lightweight ERC20 implementation optimized for gas efficiency.

Features:

Standard ERC20 interface (transfer, approve, transferFrom)
Factory-controlled minting for bonding curve operations
18 decimal precision
Minimal gas overhead

Technical Stack

Solidity: ^0.8.28
Framework: Hardhat ^2.22.19
Dependencies:
- OpenZeppelin Contracts ^5.3.0
- Ethers.js ^6.13.5
DEX Integration: Uniswap V2 Router
Testing: Hardhat Toolbox with TypeScript

Installation

Prerequisites

Node.js >= 16.0.0
npm or yarn package manager
Git

Setup

# Clone the repository
git clone https://github.com/yourusername/monad-launchpad-bondingcurve-smartcontract.git
cd monad-launchpad-bondingcurve-smartcontract

# Install dependencies
npm install

# Create environment configuration
cp .env.example .env
# Edit .env with your private keys and RPC URLs

Configuration

Create a .env file in the root directory:

PRIVATE_KEY=your_private_key_here
MONAD_RPC_URL=your_monad_rpc_url
ETHERSCAN_API_KEY=your_etherscan_api_key (optional)

Usage

Compile Contracts

npx hardhat compile

Run Tests

npx hardhat test

Deploy to Monad Network

npx hardhat run scripts/deployPump.ts --network monad

Verify Contract

npx hardhat verify --network monad DEPLOYED_CONTRACT_ADDRESS

Hardhat Development Commands

# Display available commands
npx hardhat help

# Run tests with gas reporting
REPORT_GAS=true npx hardhat test

# Start local Hardhat node
npx hardhat node

# Deploy using Hardhat Ignition
npx hardhat ignition deploy ./ignition/modules/Lock.ts

Contract Interaction Examples

Launch a New Token

const factory = await ethers.getContractAt("PumpCloneFactory", FACTORY_ADDRESS);
const tx = await factory.launchToken("MyToken", "MTK", { value: ethers.parseEther("0.1") });
await tx.wait();

Buy Tokens

const tx = await factory.buyToken(TOKEN_ADDRESS, { value: ethers.parseEther("0.05") });
await tx.wait();

Sell Tokens

const token = await ethers.getContractAt("PumpToken", TOKEN_ADDRESS);
await token.approve(FACTORY_ADDRESS, amount);
const tx = await factory.sellToken(TOKEN_ADDRESS, amount);
await tx.wait();

Security Considerations

✅ Reentrancy protection via OpenZeppelin's ReentrancyGuard
✅ Ownable pattern for admin functions
✅ Safe math operations (Solidity ^0.8.0 built-in overflow protection)
✅ Input validation on all public functions
⚠️ Recommended: External security audit before mainnet deployment

Bonding Curve Mathematics

The platform uses a constant product bonding curve formula:

x * y = k (constant product)

Where:

x = ETH reserve
y = Token reserve
k = Constant product

Price increases as more tokens are purchased, following the curve until the real token reserve is depleted, triggering Uniswap migration.

Gas Optimization

Minimal storage operations
Efficient loop-free implementations
Optimized ERC20 token implementation
Batch operations where possible

Roadmap

Multi-chain deployment support
Advanced bonding curve models
Token metadata extension (IPFS integration)
Web3 frontend interface
Analytics dashboard

Contributing

Contributions are welcome! Please follow these guidelines:

Fork the repository
Create a feature branch (git checkout -b feature/AmazingFeature)
Commit your changes (git commit -m 'Add some AmazingFeature')
Push to the branch (git push origin feature/AmazingFeature)
Open a Pull Request

License

This project is licensed under the MIT License - see the LICENSE file for details.

Support

For questions and support:

Open an issue on GitHub
Join our Discord community
Email: support@monadlaunchpad.io

Acknowledgments

OpenZeppelin for secure smart contract libraries
Uniswap for DEX integration
Hardhat team for the development framework
Monad blockchain community

Keywords: Monad blockchain, token launchpad, bonding curve, smart contract, DeFi, Uniswap integration, ERC20, token factory, automated market maker, liquidity migration, Solidity development, Hardhat

asseph/monad-launchpad-bondingcurve-smartcontract