OpenZeppelin

OpenZeppelin Contracts API Reference

The OpenZeppelin Contracts library provides a comprehensive collection of modular, reusable, and secure Solidity smart contracts for building decentralized applications. The API reference covers ERC token standards (ERC-20, ERC-721, ERC-1155), access control, governance, security utilities (reentrancy guards, pausable), upgradeable proxy patterns, and cryptographic primitives. Used by thousands of blockchain projects as the industry standard for secure smart contract development.

GitHub

Documentation

📖
Documentation
https://docs.openzeppelin.com/contracts
📖
APIReference
https://docs.openzeppelin.com/contracts/5.x/api/access
📖
RateLimits
https://raw.githubusercontent.com/api-evangelist/openzeppelin/refs/heads/main/rate-limits/rate-limits.yml

SDKs

📦
GitHubRepository
https://github.com/OpenZeppelin/openzeppelin-contracts

Other Resources

🔗
NPMPackage
https://www.npmjs.com/package/@openzeppelin/contracts
🔗
Plans
https://raw.githubusercontent.com/api-evangelist/openzeppelin/refs/heads/main/plans/plans.yml
🔗
FinOps
https://raw.githubusercontent.com/api-evangelist/openzeppelin/refs/heads/main/finops/finops.yml

API entry from apis.yml

apis.yml Raw ↑ 
name: OpenZeppelin Contracts API Reference
description: 'The OpenZeppelin Contracts library provides a comprehensive collection of modular, reusable,
  and secure Solidity smart contracts for building decentralized applications. The API reference covers
  ERC token standards (ERC-20, ERC-721, ERC-1155), access control, governance, security utilities (reentrancy
  guards, pausable), upgradeable proxy patterns, and cryptographic primitives. Used by thousands of blockchain
  projects as the industry standard for secure smart contract development.

  '
image: https://www.openzeppelin.com/hubfs/openzeppelin-logo.png
humanURL: https://docs.openzeppelin.com/contracts
baseURL: https://docs.openzeppelin.com/contracts
tags:
- Smart Contracts
- Solidity
- ERC-20
- ERC-721
- ERC-1155
- Governance
- Security
- Open Source
properties:
- type: Documentation
  url: https://docs.openzeppelin.com/contracts
- type: APIReference
  url: https://docs.openzeppelin.com/contracts/5.x/api/access
- type: GitHubRepository
  url: https://github.com/OpenZeppelin/openzeppelin-contracts
- type: NPMPackage
  url: https://www.npmjs.com/package/@openzeppelin/contracts
- type: Plans
  url: plans/plans.yml
- type: RateLimits
  url: rate-limits/rate-limits.yml
- type: FinOps
  url: finops/finops.yml
contact:
- FN: OpenZeppelin Community
  url: https://forum.openzeppelin.com/
  email: ''