# OpenZeppelin Contracts API Reference

**Canonical:** https://apis.io/apis/openzeppelin/openzeppelin-contracts-api-reference/  
**Provider:** OpenZeppelin — https://apis.io/providers/openzeppelin/  
**Base URL:** https://docs.openzeppelin.com/contracts  
**Documentation:** https://docs.openzeppelin.com/contracts

OpenZeppelin Contracts API Reference is one of 9 APIs that [OpenZeppelin](https://apis.io/providers/openzeppelin/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Smart Contracts, Solidity, ERC-20, ERC-721, and ERC-1155. The published artifact set on APIs.io includes API documentation, an API reference, a GitHub repository, and rate-limit docs.

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.

## Machine-readable artifacts (7)

- **Documentation** — https://docs.openzeppelin.com/contracts
- **APIReference** — https://docs.openzeppelin.com/contracts/5.x/api/access
- **GitHubRepository** — https://github.com/OpenZeppelin/openzeppelin-contracts
- **NPMPackage** — https://www.npmjs.com/package/@openzeppelin/contracts
- **Plans** — https://raw.githubusercontent.com/api-evangelist/openzeppelin/refs/heads/main/plans/plans.yml
- **RateLimits** — https://raw.githubusercontent.com/api-evangelist/openzeppelin/refs/heads/main/rate-limits/rate-limits.yml
- **FinOps** — https://raw.githubusercontent.com/api-evangelist/openzeppelin/refs/heads/main/finops/finops.yml

## Other OpenZeppelin APIs (8)

- [OpenZeppelin Monitor API](https://apis.io/apis/openzeppelin/openzeppelin-monitor-api/)
- [OpenZeppelin Health API](https://apis.io/apis/openzeppelin/openzeppelin-health-api/)
- [OpenZeppelin Metrics API](https://apis.io/apis/openzeppelin/openzeppelin-metrics-api/)
- [OpenZeppelin Networks API](https://apis.io/apis/openzeppelin/openzeppelin-networks-api/)
- [OpenZeppelin Notifications API](https://apis.io/apis/openzeppelin/openzeppelin-notifications-api/)
- [OpenZeppelin Plugins API](https://apis.io/apis/openzeppelin/openzeppelin-plugins-api/)
- [OpenZeppelin Relayers API](https://apis.io/apis/openzeppelin/openzeppelin-relayers-api/)
- [OpenZeppelin Signers API](https://apis.io/apis/openzeppelin/openzeppelin-signers-api/)

## Tags

Smart Contracts, Solidity, ERC-20, ERC-721, ERC-1155, Governance, Security, Open-Source

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/openzeppelin/openzeppelin-contracts-api-reference/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/openzeppelin/.