Smart Contracts
Learn about smart contracts and deploy your own on Base
What are Smart Contracts?
Smart contracts are self-executing programs that run on the blockchain. They automatically enforce agreements and transactions without intermediaries.
🔒 Trustless
No need to trust a third party - code executes automatically
🌍 Decentralized
Runs on thousands of nodes, no single point of failure
📜 Transparent
All code and transactions are publicly visible on the blockchain
💎 Immutable
Once deployed, contracts cannot be changed or tampered with
Solidity Language
Smart contracts on Ethereum and Base are written in Solidity, a programming language similar to JavaScript.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
contract SimpleStorage {
uint256 private storedValue;
function setValue(uint256 _value) public {
storedValue = _value;
}
function getValue() public view returns (uint256) {
return storedValue;
}
}Deploy Your Contract
OnChain Clinic offers two ways to deploy smart contracts on Base:
1. Deploy Pre-built Contract
Use our ready-to-deploy contracts like SimpleStorage or Counter. Perfect for beginners!
Go to Medical Records →2. Deploy Custom Contract
Write your own Solidity code and deploy it directly from the browser!
Try Custom Deployment →Understanding Gas Fees
Gas fees are the cost of executing transactions on the blockchain. On Base, gas fees are significantly lower than Ethereum mainnet.
Typical Gas Costs on Base:
- Simple Contract Deployment:~$0.01 - $0.10
- Contract Function Call:~$0.001 - $0.01
- NFT Minting:~$0.01 - $0.05
Security Best Practices
⚠️ Test Before Mainnet
Always test your contracts on Base Sepolia testnet before deploying to mainnet
⚠️ Audit Your Code
For production contracts handling real value, get a professional security audit
⚠️ Use Verified Contracts
Verify your contract source code on BaseScan for transparency
📝 Ready to Deploy?
Head over to the Medical Records page to deploy your first smart contract!
Start Deploying →