OpenZeppelin ContractsFinance & TradingLibrary for secure smart contract development.MIT
Library for secure smart contract development.
OpenZeppelin Contracts provides reusable Solidity components for building smart contracts and decentralized applications. Its library includes token-standard implementations such as ERC20 and ERC721, together with role-based permissions and other building blocks for custom contracts. Developers install it into a project through npm or Foundry and import or inherit the required components rather than running it as a standalone service.
OpenZeppelin Contracts README · Reviewed 2026-10-28
- 01 / Feature noteToken standards
Use implementations of token standards including ERC20 and ERC721.
Feature source ↗ - 02 / Feature noteRole-based permissions
Apply the library’s role-based permissioning components to contract access decisions.
Feature source ↗
GitHub stars
27,341
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MIT
Repository created
2016-08-01
Repository push
2026-11-02
2016-08-01GitHub release
2026-07-29 · v5.7.0Repository push
2026-11-02
GitHub stars
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Latest attempt: ok · Checked 2026-10-15T18:22:24.727650+00:00 · Last successful fetch 2026-10-15T18:22:24.727650+00:00 · Provider source
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GitHub release
Published 2026-07-29
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Checked 2026-11-04T04:26:56Z · Last successful fetch 2026-11-04T04:26:56Z · Value fetched 2026-11-04T04:26:56Z · Provider source
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