> ## Documentation Index
> Fetch the complete documentation index at: https://docs.theblockchainlibrary.com/llms.txt
> Use this file to discover all available pages before exploring further.

# OpenZeppelin Contracts

> OpenZeppelin Contracts provides reusable ERC-20/721/1155, access control, and upgradeability primitives.

# OpenZeppelin Contracts

OpenZeppelin Contracts provides reusable ERC-20/721/1155, access control, and upgradeability primitives.

**The standard library of secure, audited Solidity contracts.**

OpenZeppelin Contracts provides reusable ERC-20/721/1155, access control, and upgradeability primitives.

## Resource details

* **Organization:** OpenZeppelin
* **Category:** Developer Documentation
* **Difficulty:** developer
* **Official:** Yes
* **Editorial label:** Excellent Documentation

## Official resource

[Visit OpenZeppelin Contracts](https://docs.openzeppelin.com/contracts)

## Related knowledge

* [Foundry Book](/generated/v2/resources/foundry-book) — resource
* [Foundry Book](/generated/v2/resources/foundry-book) — related-resource
* [Hardhat](/generated/v2/resources/hardhat) — resource
* [Hardhat](/generated/v2/resources/hardhat) — related-resource
* [Solidity](/generated/v2/resources/solidity) — resource
* [Solidity](/generated/v2/resources/solidity) — related-resource

***

**Canonical knowledge ID:** `resource:openzeppelin-contracts`