Introduction
Building an ERC20 token manually using Foundry is a crucial skill for advanced smart contract development. This guide provides a step-by-step approach to setting up Foundry and coding essential ERC20 functions such as:
name()decimals()totalSupply()balanceOf()
By understanding Solidity mechanisms and EIP-20 requirements, developers gain deeper insights into tokenization and blockchain interoperability.
👉 Master blockchain development with Foundry
What You'll Learn
This course covers advanced smart contract development, including:
- Developing a stablecoin
- Building a DeFi protocol
- Testing smart contracts rigorously
Key Takeaways
✅ Hands-on ERC20 token creation
✅ Foundry setup & configuration
✅ Deep dive into EIP-20 compliance
✅ Efficient testing methods
Who Is This Course For?
- Engineers transitioning into Web3
- Smart Contract Security Researchers
- Blockchain Developers enhancing their skills
Potential Careers & Salaries
| Career Path | Average Salary |
|-------------|---------------|
| Web3 Developer Relations | $85,000 – $125,000 |
| Web3 Developer | $60,000 – $150,000 |
| Smart Contract Engineer | $100,000 – $150,000 |
| Smart Contract Auditor | $100,000 – $200,000 |
| Security Researcher | $49,999 – $120,000 |
Meet Your Instructors
- Patrick Collins (Founder, Cyfrin) – Expert in Web3 engineering & education
- Ciara Nightingale (Developer Relations, Cyfrin)
- Guest Lecturers from Aragon, ThirdWeb, EigenLayer, Protocol Labs, GasliteGG
👉 Boost your Web3 career today
Course Modules
- ERC20 Welcome to Advanced – Foundry prep & best practices (1 min)
- Introduction to ERC20 Fundamentals – EIPs, ERCs, token standards (5 min)
- Creating an ERC20 – Manual token coding in Foundry (7 min)
- Explore OpenZeppelin – Secure ERC20 implementation (5 min)
- Deploy Your ERC20 – Foundry scripting & deployment (3 min)
- Test Your ERC20 Using AI – Unit testing & AI-assisted development (15 min)
FAQs
❓ What is Foundry?
Foundry is a smart contract development toolchain for Ethereum that includes testing, deployment, and debugging capabilities.
❓ Why build an ERC20 manually?
Manual development ensures deep understanding of token mechanics, improving security & optimization skills.
❓ Is OpenZeppelin necessary?
While not mandatory, OpenZeppelin provides audited, gas-efficient contracts, speeding up secure development.
❓ How do I test tokens efficiently?
Leverage Foundry’s testing framework and AI-assisted test generation for faster iterations.
Conclusion
Mastering ERC20 token creation with Foundry opens doors to advanced blockchain development, DeFi protocols, and high-paying Web3 careers.
(Last Updated: June 10, 2025)