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A library for secure smart contract development. Build on a solid foundation of community-vetted code. OpenZeppelin Contracts uses semantic versioning to communicate backward compatibility of its API and storage layout. To keep your system secure, you should always use the installed code as-is, and neither copy-paste it from online sources nor modify it yourself. The library is designed so that only the contracts and functions you use are deployed, so you don't need to worry about it needlessly increasing gas costs. Reduce the risk of vulnerabilities in your applications by using standard, tested, community-reviewed code.
Features
- Implementations of standards like ERC20 and ERC721
- Documentation available
- Flexible role-based permissioning scheme
- Reusable Solidity components to build custom contracts and complex decentralized systems
- Examples available
Project Samples
License
MIT LicenseFollow OpenZeppelin Contracts
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