# OpenZeppelin Docs > Security-first libraries, tools, and infrastructure for building on Ethereum and other blockchains. Covers smart contract libraries for Solidity, Cairo, Stylus, Sui, Midnight, Stellar, Zama FHEVM, and Polkadot; operational tools (Defender, Monitor, Relayer, UI Builder); and the Upgrades Plugins and Contract Wizard. Each ecosystem section lists the smart-contract libraries and language-specific guides for that chain. Cross-ecosystem tools — Defender, Monitor, Relayer, UI Builder, Role Manager — are grouped at the end under "Open Source Tools" to avoid duplication. Unversioned URLs (for example `/contracts/`) redirect to the latest supported version. ## Ethereum & EVM - [Getting Started](https://docs.openzeppelin.com/contracts) ### Solidity Contracts - [OpenZeppelin Contracts — Overview](https://docs.openzeppelin.com/contracts/5.x) - [OpenZeppelin Contracts — Contracts Wizard](https://docs.openzeppelin.com/contracts/5.x/wizard) - [OpenZeppelin Contracts — Extending Contracts](https://docs.openzeppelin.com/contracts/5.x/extending-contracts) - [OpenZeppelin Contracts — Using with Upgrades](https://docs.openzeppelin.com/contracts/5.x/upgradeable) - [OpenZeppelin Contracts — Backwards Compatibility](https://docs.openzeppelin.com/contracts/5.x/backwards-compatibility) - [OpenZeppelin Contracts — Access Control](https://docs.openzeppelin.com/contracts/5.x/access-control) - [OpenZeppelin Contracts — Account Abstraction — Overview](https://docs.openzeppelin.com/contracts/5.x/account-abstraction) - [OpenZeppelin Contracts — Account Abstraction — Accounts — Overview](https://docs.openzeppelin.com/contracts/5.x/accounts) - [OpenZeppelin Contracts — Account Abstraction — Accounts — EOA Delegation](https://docs.openzeppelin.com/contracts/5.x/eoa-delegation) - [OpenZeppelin Contracts — Account Abstraction — Accounts — Multisig](https://docs.openzeppelin.com/contracts/5.x/multisig) - [OpenZeppelin Contracts — Tokens — Overview](https://docs.openzeppelin.com/contracts/5.x/tokens) - [OpenZeppelin Contracts — Tokens — ERC-20 — Overview](https://docs.openzeppelin.com/contracts/5.x/erc20) - [OpenZeppelin Contracts — Tokens — ERC-20 — Creating Supply](https://docs.openzeppelin.com/contracts/5.x/erc20-supply) - [OpenZeppelin Contracts — Tokens — ERC-721](https://docs.openzeppelin.com/contracts/5.x/erc721) - [OpenZeppelin Contracts — Tokens — ERC-1155](https://docs.openzeppelin.com/contracts/5.x/erc1155) - [OpenZeppelin Contracts — Tokens — ERC-4626](https://docs.openzeppelin.com/contracts/5.x/erc4626) - [OpenZeppelin Contracts — Tokens — ERC-6909](https://docs.openzeppelin.com/contracts/5.x/erc6909) - [OpenZeppelin Contracts — Governance](https://docs.openzeppelin.com/contracts/5.x/governance) - [OpenZeppelin Contracts — Utilities](https://docs.openzeppelin.com/contracts/5.x/utilities) - [OpenZeppelin Contracts — Subgraphs — Overview](https://docs.openzeppelin.com/contracts/5.x/subgraphs) - [OpenZeppelin Contracts — Subgraphs — Automatic Generation](https://docs.openzeppelin.com/contracts/5.x/subgraphs/generate) - [OpenZeppelin Contracts — Subgraphs — Query Examples](https://docs.openzeppelin.com/contracts/5.x/subgraphs/examples/query) - [OpenZeppelin Contracts — Subgraphs — Subgraph Examples](https://docs.openzeppelin.com/contracts/5.x/subgraphs/examples/subgraph) - [OpenZeppelin Contracts — FAQ](https://docs.openzeppelin.com/contracts/5.x/faq) - [OpenZeppelin Contracts — Changelog](https://docs.openzeppelin.com/contracts/5.x/changelog) - [OpenZeppelin Contracts — API Reference — Overview](https://docs.openzeppelin.com/contracts/5.x/api) - [OpenZeppelin Contracts — API Reference — Access](https://docs.openzeppelin.com/contracts/5.x/api/access): Smart contract access utilities and implementations - [OpenZeppelin Contracts — API Reference — Account](https://docs.openzeppelin.com/contracts/5.x/api/account): Smart contract account utilities and implementations - [OpenZeppelin Contracts — API Reference — Crosschain](https://docs.openzeppelin.com/contracts/5.x/api/crosschain): Smart contract crosschain utilities and implementations - [OpenZeppelin Contracts — API Reference — Finance](https://docs.openzeppelin.com/contracts/5.x/api/finance): Smart contract finance utilities and implementations - [OpenZeppelin Contracts — API Reference — Governance](https://docs.openzeppelin.com/contracts/5.x/api/governance): Smart contract governance utilities and implementations - [OpenZeppelin Contracts — API Reference — Interfaces](https://docs.openzeppelin.com/contracts/5.x/api/interfaces): Smart contract interfaces utilities and implementations - [OpenZeppelin Contracts — API Reference — Meta Transactions](https://docs.openzeppelin.com/contracts/5.x/api/metatx): Smart contract metatx utilities and implementations - [OpenZeppelin Contracts — API Reference — Proxy](https://docs.openzeppelin.com/contracts/5.x/api/proxy): Smart contract proxy utilities and implementations - [OpenZeppelin Contracts — API Reference — Token — Common](https://docs.openzeppelin.com/contracts/5.x/api/token/common): Smart contract common utilities and implementations - [OpenZeppelin Contracts — API Reference — Token — ERC20](https://docs.openzeppelin.com/contracts/5.x/api/token/ERC20): Smart contract ERC20 utilities and implementations - [OpenZeppelin Contracts — API Reference — Token — ERC721](https://docs.openzeppelin.com/contracts/5.x/api/token/ERC721): Smart contract ERC721 utilities and implementations - [OpenZeppelin Contracts — API Reference — Token — ERC1155](https://docs.openzeppelin.com/contracts/5.x/api/token/ERC1155): Smart contract ERC1155 utilities and implementations - [OpenZeppelin Contracts — API Reference — Token — ERC6909](https://docs.openzeppelin.com/contracts/5.x/api/token/ERC6909): Smart contract ERC6909 utilities and implementations - [OpenZeppelin Contracts — API Reference — Utils — Overview](https://docs.openzeppelin.com/contracts/5.x/api/utils): Smart contract utils utilities and implementations - [OpenZeppelin Contracts — API Reference — Utils — Cryptography](https://docs.openzeppelin.com/contracts/5.x/api/utils/cryptography): Smart contract cryptography utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — Overview](https://docs.openzeppelin.com/contracts/4.x) - [OpenZeppelin Contracts — Previous Versions — v4 — Extending Contracts](https://docs.openzeppelin.com/contracts/4.x/extending-contracts) - [OpenZeppelin Contracts — Previous Versions — v4 — Using with Upgrades](https://docs.openzeppelin.com/contracts/4.x/upgradeable) - [OpenZeppelin Contracts — Previous Versions — v4 — Releases & Stability](https://docs.openzeppelin.com/contracts/4.x/releases-stability) - [OpenZeppelin Contracts — Previous Versions — v4 — Access Control](https://docs.openzeppelin.com/contracts/4.x/access-control) - [OpenZeppelin Contracts — Previous Versions — v4 — Tokens — Overview](https://docs.openzeppelin.com/contracts/4.x/tokens) - [OpenZeppelin Contracts — Previous Versions — v4 — Tokens — ERC-20 — Overview](https://docs.openzeppelin.com/contracts/4.x/erc20) - [OpenZeppelin Contracts — Previous Versions — v4 — Tokens — ERC-20 — Creating Supply](https://docs.openzeppelin.com/contracts/4.x/erc20-supply) - [OpenZeppelin Contracts — Previous Versions — v4 — Tokens — ERC-721](https://docs.openzeppelin.com/contracts/4.x/erc721) - [OpenZeppelin Contracts — Previous Versions — v4 — Tokens — ERC-777](https://docs.openzeppelin.com/contracts/4.x/erc777) - [OpenZeppelin Contracts — Previous Versions — v4 — Tokens — ERC-1155](https://docs.openzeppelin.com/contracts/4.x/erc1155) - [OpenZeppelin Contracts — Previous Versions — v4 — Tokens — ERC-4626](https://docs.openzeppelin.com/contracts/4.x/erc4626) - [OpenZeppelin Contracts — Previous Versions — v4 — Crosschain](https://docs.openzeppelin.com/contracts/4.x/crosschain) - [OpenZeppelin Contracts — Previous Versions — v4 — Governance](https://docs.openzeppelin.com/contracts/4.x/governance) - [OpenZeppelin Contracts — Previous Versions — v4 — Utilities](https://docs.openzeppelin.com/contracts/4.x/utilities) - [OpenZeppelin Contracts — Previous Versions — v4 — Drafts](https://docs.openzeppelin.com/contracts/4.x/drafts) - [OpenZeppelin Contracts — Previous Versions — v4 — Crowdsales (Legacy)](https://docs.openzeppelin.com/contracts/4.x/crowdsales) - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Overview](https://docs.openzeppelin.com/contracts/4.x/api) - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Access](https://docs.openzeppelin.com/contracts/4.x/api/access): Smart contract access utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Crosschain](https://docs.openzeppelin.com/contracts/4.x/api/crosschain): Smart contract crosschain utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Finance](https://docs.openzeppelin.com/contracts/4.x/api/finance): Smart contract finance utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Governance](https://docs.openzeppelin.com/contracts/4.x/api/governance): Smart contract governance utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Interfaces](https://docs.openzeppelin.com/contracts/4.x/api/interfaces): Smart contract interfaces utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Meta Transactions](https://docs.openzeppelin.com/contracts/4.x/api/metatx): Smart contract metatx utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Proxy](https://docs.openzeppelin.com/contracts/4.x/api/proxy): Smart contract proxy utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Security](https://docs.openzeppelin.com/contracts/4.x/api/security): Smart contract security utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Token — Common](https://docs.openzeppelin.com/contracts/4.x/api/token/common): Smart contract common utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Token — ERC20](https://docs.openzeppelin.com/contracts/4.x/api/token/ERC20): Smart contract ERC20 utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Token — ERC721](https://docs.openzeppelin.com/contracts/4.x/api/token/ERC721): Smart contract ERC721 utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Token — ERC777](https://docs.openzeppelin.com/contracts/4.x/api/token/ERC777): Smart contract ERC777 utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Token — ERC1155](https://docs.openzeppelin.com/contracts/4.x/api/token/ERC1155): Smart contract ERC1155 utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v4 — API Reference — Utils](https://docs.openzeppelin.com/contracts/4.x/api/utils): Smart contract utils utilities and implementations - [OpenZeppelin Contracts — Previous Versions — v3 — Overview](https://docs.openzeppelin.com/contracts/3.x) - [OpenZeppelin Contracts — Previous Versions — v3 — Extending Contracts](https://docs.openzeppelin.com/contracts/3.x/extending-contracts) - [OpenZeppelin Contracts — Previous Versions — v3 — Using with Upgrades](https://docs.openzeppelin.com/contracts/3.x/upgradeable) - [OpenZeppelin Contracts — Previous Versions — v3 — Releases & Stability](https://docs.openzeppelin.com/contracts/3.x/releases-stability) - [OpenZeppelin Contracts — Previous Versions — v3 — Access Control](https://docs.openzeppelin.com/contracts/3.x/access-control) - [OpenZeppelin Contracts — Previous Versions — v3 — Tokens — Overview](https://docs.openzeppelin.com/contracts/3.x/tokens) - [OpenZeppelin Contracts — Previous Versions — v3 — Tokens — ERC-20 — Overview](https://docs.openzeppelin.com/contracts/3.x/erc20) - [OpenZeppelin Contracts — Previous Versions — v3 — Tokens — ERC-20 — Creating Supply](https://docs.openzeppelin.com/contracts/3.x/erc20-supply) - [OpenZeppelin Contracts — Previous Versions — v3 — Tokens — ERC-721](https://docs.openzeppelin.com/contracts/3.x/erc721) - [OpenZeppelin Contracts — Previous Versions — v3 — Tokens — ERC-777](https://docs.openzeppelin.com/contracts/3.x/erc777) - [OpenZeppelin Contracts — Previous Versions — v3 — Tokens — ERC-1155](https://docs.openzeppelin.com/contracts/3.x/erc1155) - [OpenZeppelin Contracts — Previous Versions — v3 — Gas Station Network — Overview](https://docs.openzeppelin.com/contracts/3.x/gsn) - [OpenZeppelin Contracts — Previous Versions — v3 — Gas Station Network — Strategies](https://docs.openzeppelin.com/contracts/3.x/gsn-strategies) - [OpenZeppelin Contracts — Previous Versions — v3 — Utilities](https://docs.openzeppelin.com/contracts/3.x/utilities) - [Community Contracts — Overview](https://docs.openzeppelin.com/community-contracts) - [Community Contracts — Account Abstraction — Modules](https://docs.openzeppelin.com/community-contracts/account-modules) - [Community Contracts — Account Abstraction — Paymasters](https://docs.openzeppelin.com/community-contracts/paymasters) - [Community Contracts — Crosschain](https://docs.openzeppelin.com/community-contracts/crosschain) - [Community Contracts — Utilities](https://docs.openzeppelin.com/community-contracts/utilities) - [Community Contracts — API Reference — Overview](https://docs.openzeppelin.com/community-contracts/api) - [Community Contracts — API Reference — Access](https://docs.openzeppelin.com/community-contracts/api/access): Smart contract access utilities and implementations - [Community Contracts — API Reference — Account](https://docs.openzeppelin.com/community-contracts/api/account): Smart contract account utilities and implementations - [Community Contracts — API Reference — Crosschain](https://docs.openzeppelin.com/community-contracts/api/crosschain): Smart contract crosschain utilities and implementations - [Community Contracts — API Reference — Interfaces](https://docs.openzeppelin.com/community-contracts/api/interfaces): Smart contract interfaces utilities and implementations - [Community Contracts — API Reference — Proxy](https://docs.openzeppelin.com/community-contracts/api/proxy): Smart contract proxy utilities and implementations - [Community Contracts — API Reference — Token](https://docs.openzeppelin.com/community-contracts/api/token): Smart contract token utilities and implementations - [Community Contracts — API Reference — Utils](https://docs.openzeppelin.com/community-contracts/api/utils): Smart contract utils utilities and implementations - [Community Contracts — API Reference — Cryptography](https://docs.openzeppelin.com/community-contracts/api/utils/cryptography): Smart contract cryptography utilities and implementations - [Upgrades Plugins — Overview](https://docs.openzeppelin.com/upgrades-plugins) - [Upgrades Plugins — Using with Hardhat — Overview](https://docs.openzeppelin.com/upgrades-plugins/hardhat-upgrades) - [Upgrades Plugins — Using with Hardhat — Network Files](https://docs.openzeppelin.com/upgrades-plugins/network-files) - [Upgrades Plugins — Using with Foundry](https://docs.openzeppelin.com/upgrades-plugins/foundry/foundry-upgrades) - [Upgrades Plugins — Writing Upgradeable Contracts](https://docs.openzeppelin.com/upgrades-plugins/writing-upgradeable) - [Upgrades Plugins — Proxy Upgrade Pattern](https://docs.openzeppelin.com/upgrades-plugins/proxies) - [Upgrades Plugins — Frequently Asked Questions](https://docs.openzeppelin.com/upgrades-plugins/faq) ### API Reference - [Upgrades Plugins — Hardhat Upgrades API](https://docs.openzeppelin.com/upgrades-plugins/api-hardhat-upgrades) - [Upgrades Plugins — Foundry Upgrades API — Overview](https://docs.openzeppelin.com/upgrades-plugins/foundry/api) - [Upgrades Plugins — Foundry Upgrades API — Upgrades](https://docs.openzeppelin.com/upgrades-plugins/foundry/api/Upgrades): Smart contract Upgrades utilities and implementations - [Upgrades Plugins — Foundry Upgrades API — LegacyUpgrades](https://docs.openzeppelin.com/upgrades-plugins/foundry/api/LegacyUpgrades): Smart contract LegacyUpgrades utilities and implementations - [Upgrades Plugins — Foundry Upgrades API — Defender](https://docs.openzeppelin.com/upgrades-plugins/foundry/api/Defender): Smart contract Defender utilities and implementations - [Upgrades Plugins — Foundry Upgrades API — Options](https://docs.openzeppelin.com/upgrades-plugins/foundry/api/Options): Smart contract Options utilities and implementations - [Upgrades Plugins — Upgrades Core & CLI](https://docs.openzeppelin.com/upgrades-plugins/api-core) - [Contracts Wizard](https://docs.openzeppelin.com/wizard): A tool for building smart contracts - [Learn — Overview](https://docs.openzeppelin.com/contracts/5.x/learn) - [Learn — Setting up a Node project](https://docs.openzeppelin.com/contracts/5.x/learn/setting-up-a-node-project) - [Learn — Developing smart contracts](https://docs.openzeppelin.com/contracts/5.x/learn/developing-smart-contracts) - [Learn — Deploying and interacting](https://docs.openzeppelin.com/contracts/5.x/learn/deploying-and-interacting) - [Learn — Writing automated tests](https://docs.openzeppelin.com/contracts/5.x/learn/writing-automated-tests) - [Learn — Connecting to public test networks](https://docs.openzeppelin.com/contracts/5.x/learn/connecting-to-public-test-networks) - [Learn — Upgrading smart contracts](https://docs.openzeppelin.com/contracts/5.x/learn/upgrading-smart-contracts) - [Learn — Preparing for mainnet](https://docs.openzeppelin.com/contracts/5.x/learn/preparing-for-mainnet) - [Learn — WebAuthn Smart Accounts](https://docs.openzeppelin.com/contracts/5.x/learn/webauthn-smart-accounts) ## Stellar ### Stellar Contracts - [Overview](https://docs.openzeppelin.com/stellar-contracts) - [Get Started](https://docs.openzeppelin.com/stellar-contracts/get-started) - [Accounts — Smart Account](https://docs.openzeppelin.com/stellar-contracts/accounts/smart-account) - [Accounts — Context Rules](https://docs.openzeppelin.com/stellar-contracts/accounts/context-rules) - [Accounts — Signers and Verifiers](https://docs.openzeppelin.com/stellar-contracts/accounts/signers-and-verifiers) - [Accounts — Policies](https://docs.openzeppelin.com/stellar-contracts/accounts/policies) - [Accounts — Authorization Flow](https://docs.openzeppelin.com/stellar-contracts/accounts/authorization-flow) - [Tokens — Fungible](https://docs.openzeppelin.com/stellar-contracts/tokens/fungible/fungible) - [Tokens — Non-Fungible](https://docs.openzeppelin.com/stellar-contracts/tokens/non-fungible/non-fungible) - [Tokens — RWA](https://docs.openzeppelin.com/stellar-contracts/tokens/rwa/rwa) - [Tokens — Vault](https://docs.openzeppelin.com/stellar-contracts/tokens/vault/vault) - [Access — Access Control](https://docs.openzeppelin.com/stellar-contracts/access/access-control) - [Access — Ownable](https://docs.openzeppelin.com/stellar-contracts/access/ownable) - [Governance — Governor](https://docs.openzeppelin.com/stellar-contracts/governance/governor) - [Governance — Votes](https://docs.openzeppelin.com/stellar-contracts/governance/votes) - [Governance — Timelock Controller](https://docs.openzeppelin.com/stellar-contracts/governance/timelock-controller) - [Utilities — Pausable](https://docs.openzeppelin.com/stellar-contracts/utils/pausable) - [Utilities — Upgradeable](https://docs.openzeppelin.com/stellar-contracts/utils/upgradeable) - [Utilities — Math — WAD](https://docs.openzeppelin.com/stellar-contracts/utils/math/wad): High-precision decimal arithmetic - [Utilities — Cryptography](https://docs.openzeppelin.com/stellar-contracts/utils/crypto/crypto) - [Utilities — Cryptography — Merkle Distributor](https://docs.openzeppelin.com/stellar-contracts/utils/crypto/merkle-distributor) - [Fee Abstraction](https://docs.openzeppelin.com/stellar-contracts/fee-abstraction) ## Starknet - [Getting Started](https://docs.openzeppelin.com/contracts-cairo) ### Starknet Contracts - [Overview](https://docs.openzeppelin.com/contracts-cairo/3.x) - [Wizard](https://docs.openzeppelin.com/contracts-cairo/3.x/wizard) - [Learn — Components](https://docs.openzeppelin.com/contracts-cairo/3.x/components) - [Learn — Presets](https://docs.openzeppelin.com/contracts-cairo/3.x/presets) - [Learn — Interfaces and Dispatchers](https://docs.openzeppelin.com/contracts-cairo/3.x/guides/interfaces-and-dispatchers) - [Learn — Counterfactual Deployments](https://docs.openzeppelin.com/contracts-cairo/3.x/guides/deployment) - [Learn — SNIP12 and Typed Messages](https://docs.openzeppelin.com/contracts-cairo/3.x/guides/snip12) - [Modules — Interfaces](https://docs.openzeppelin.com/contracts-cairo/3.x/interfaces) - [Modules — Access Control](https://docs.openzeppelin.com/contracts-cairo/3.x/access) - [Modules — Accounts](https://docs.openzeppelin.com/contracts-cairo/3.x/accounts) - [Modules — Finance](https://docs.openzeppelin.com/contracts-cairo/3.x/finance) - [Modules — Governance — Governor](https://docs.openzeppelin.com/contracts-cairo/3.x/governance/governor) - [Modules — Governance — Multisig](https://docs.openzeppelin.com/contracts-cairo/3.x/governance/multisig) - [Modules — Governance — Timelock](https://docs.openzeppelin.com/contracts-cairo/3.x/governance/timelock) - [Modules — Governance — Votes](https://docs.openzeppelin.com/contracts-cairo/3.x/governance/votes) - [Modules — Introspection](https://docs.openzeppelin.com/contracts-cairo/3.x/introspection) - [Modules — Macros — Overview](https://docs.openzeppelin.com/contracts-cairo/3.x/macros) - [Modules — Macros — Type Hash](https://docs.openzeppelin.com/contracts-cairo/3.x/macros/type_hash) - [Modules — Macros — With Components](https://docs.openzeppelin.com/contracts-cairo/3.x/macros/with_components) - [Modules — Security](https://docs.openzeppelin.com/contracts-cairo/3.x/security) - [Modules — Tokens — ERC-20 — Overview](https://docs.openzeppelin.com/contracts-cairo/3.x/erc20) - [Modules — Tokens — ERC-20 — Creating Supply](https://docs.openzeppelin.com/contracts-cairo/3.x/guides/erc20-supply) - [Modules — Tokens — ERC-20 — ERC20 Permit](https://docs.openzeppelin.com/contracts-cairo/3.x/guides/erc20-permit) - [Modules — Tokens — ERC-721](https://docs.openzeppelin.com/contracts-cairo/3.x/erc721) - [Modules — Tokens — ERC-1155](https://docs.openzeppelin.com/contracts-cairo/3.x/erc1155) - [Modules — Tokens — ERC-4626](https://docs.openzeppelin.com/contracts-cairo/3.x/erc4626) - [Modules — Universal Deployer Contract — Overview](https://docs.openzeppelin.com/contracts-cairo/3.x/udc) - [Modules — Universal Deployer Contract — UDC Appchain Deployment](https://docs.openzeppelin.com/contracts-cairo/3.x/guides/deploy-udc) - [Modules — Upgrades](https://docs.openzeppelin.com/contracts-cairo/3.x/upgrades) - [API Reference — Access Control](https://docs.openzeppelin.com/contracts-cairo/3.x/api/access) - [API Reference — Account](https://docs.openzeppelin.com/contracts-cairo/3.x/api/account) - [API Reference — ERC-20](https://docs.openzeppelin.com/contracts-cairo/3.x/api/erc20) - [API Reference — ERC-721](https://docs.openzeppelin.com/contracts-cairo/3.x/api/erc721) - [API Reference — ERC-1155](https://docs.openzeppelin.com/contracts-cairo/3.x/api/erc1155) - [API Reference — ERC-4626](https://docs.openzeppelin.com/contracts-cairo/3.x/api/erc20#ERC4626Component) - [API Reference — Token Common](https://docs.openzeppelin.com/contracts-cairo/3.x/api/token_common) - [API Reference — Finance](https://docs.openzeppelin.com/contracts-cairo/3.x/api/finance) - [API Reference — Governance](https://docs.openzeppelin.com/contracts-cairo/3.x/api/governance) - [API Reference — Introspection](https://docs.openzeppelin.com/contracts-cairo/3.x/api/introspection) - [API Reference — Merkle Tree](https://docs.openzeppelin.com/contracts-cairo/3.x/api/merkle-tree) - [API Reference — Security](https://docs.openzeppelin.com/contracts-cairo/3.x/api/security) - [API Reference — Testing](https://docs.openzeppelin.com/contracts-cairo/3.x/api/testing) - [API Reference — UDC](https://docs.openzeppelin.com/contracts-cairo/3.x/api/udc) - [API Reference — Upgrades](https://docs.openzeppelin.com/contracts-cairo/3.x/api/upgrades) - [API Reference — Utilities](https://docs.openzeppelin.com/contracts-cairo/3.x/api/utilities) - [Backwards Compatibility](https://docs.openzeppelin.com/contracts-cairo/3.x/backwards-compatibility) - [Previous Versions — 2.x — Overview](https://docs.openzeppelin.com/contracts-cairo/2.x) - [Previous Versions — 2.x — Wizard](https://docs.openzeppelin.com/contracts-cairo/2.x/wizard) - [Previous Versions — 2.x — Learn — Components](https://docs.openzeppelin.com/contracts-cairo/2.x/components) - [Previous Versions — 2.x — Learn — Presets](https://docs.openzeppelin.com/contracts-cairo/2.x/presets) - [Previous Versions — 2.x — Learn — Interfaces and Dispatchers](https://docs.openzeppelin.com/contracts-cairo/2.x/guides/interfaces-and-dispatchers) - [Previous Versions — 2.x — Learn — Counterfactual Deployments](https://docs.openzeppelin.com/contracts-cairo/2.x/guides/deployment) - [Previous Versions — 2.x — Learn — SNIP12 and Typed Messages](https://docs.openzeppelin.com/contracts-cairo/2.x/guides/snip12) - [Previous Versions — 2.x — Modules — Access Control](https://docs.openzeppelin.com/contracts-cairo/2.x/access) - [Previous Versions — 2.x — Modules — Accounts](https://docs.openzeppelin.com/contracts-cairo/2.x/accounts) - [Previous Versions — 2.x — Modules — Finance](https://docs.openzeppelin.com/contracts-cairo/2.x/finance) - [Previous Versions — 2.x — Modules — Governance — Governor](https://docs.openzeppelin.com/contracts-cairo/2.x/governance/governor) - [Previous Versions — 2.x — Modules — Governance — Multisig](https://docs.openzeppelin.com/contracts-cairo/2.x/governance/multisig) - [Previous Versions — 2.x — Modules — Governance — Timelock](https://docs.openzeppelin.com/contracts-cairo/2.x/governance/timelock) - [Previous Versions — 2.x — Modules — Governance — Votes](https://docs.openzeppelin.com/contracts-cairo/2.x/governance/votes) - [Previous Versions — 2.x — Modules — Introspection](https://docs.openzeppelin.com/contracts-cairo/2.x/introspection) - [Previous Versions — 2.x — Modules — Macros — Overview](https://docs.openzeppelin.com/contracts-cairo/2.x/macros) - [Previous Versions — 2.x — Modules — Macros — Type Hash](https://docs.openzeppelin.com/contracts-cairo/2.x/macros/type_hash) - [Previous Versions — 2.x — Modules — Macros — With Components](https://docs.openzeppelin.com/contracts-cairo/2.x/macros/with_components) - [Previous Versions — 2.x — Modules — Security](https://docs.openzeppelin.com/contracts-cairo/2.x/security) - [Previous Versions — 2.x — Modules — Tokens — ERC-20 — Overview](https://docs.openzeppelin.com/contracts-cairo/2.x/erc20) - [Previous Versions — 2.x — Modules — Tokens — ERC-20 — Creating Supply](https://docs.openzeppelin.com/contracts-cairo/2.x/guides/erc20-supply) - [Previous Versions — 2.x — Modules — Tokens — ERC-20 — ERC20 Permit](https://docs.openzeppelin.com/contracts-cairo/2.x/guides/erc20-permit) - [Previous Versions — 2.x — Modules — Tokens — ERC-721](https://docs.openzeppelin.com/contracts-cairo/2.x/erc721) - [Previous Versions — 2.x — Modules — Tokens — ERC-1155](https://docs.openzeppelin.com/contracts-cairo/2.x/erc1155) - [Previous Versions — 2.x — Modules — Tokens — ERC-4626](https://docs.openzeppelin.com/contracts-cairo/2.x/erc4626) - [Previous Versions — 2.x — Modules — Universal Deployer Contract — Overview](https://docs.openzeppelin.com/contracts-cairo/2.x/udc) - [Previous Versions — 2.x — Modules — Universal Deployer Contract — UDC Appchain Deployment](https://docs.openzeppelin.com/contracts-cairo/2.x/guides/deploy-udc) - [Previous Versions — 2.x — Modules — Upgrades](https://docs.openzeppelin.com/contracts-cairo/2.x/upgrades) - [Previous Versions — 2.x — API Reference — Access Control](https://docs.openzeppelin.com/contracts-cairo/2.x/api/access) - [Previous Versions — 2.x — API Reference — Account](https://docs.openzeppelin.com/contracts-cairo/2.x/api/account) - [Previous Versions — 2.x — API Reference — ERC-20](https://docs.openzeppelin.com/contracts-cairo/2.x/api/erc20) - [Previous Versions — 2.x — API Reference — ERC-721](https://docs.openzeppelin.com/contracts-cairo/2.x/api/erc721) - [Previous Versions — 2.x — API Reference — ERC-1155](https://docs.openzeppelin.com/contracts-cairo/2.x/api/erc1155) - [Previous Versions — 2.x — API Reference — ERC-4626](https://docs.openzeppelin.com/contracts-cairo/2.x/api/erc20#ERC4626Component) - [Previous Versions — 2.x — API Reference — Token Common](https://docs.openzeppelin.com/contracts-cairo/2.x/api/token_common) - [Previous Versions — 2.x — API Reference — Finance](https://docs.openzeppelin.com/contracts-cairo/2.x/api/finance) - [Previous Versions — 2.x — API Reference — Governance](https://docs.openzeppelin.com/contracts-cairo/2.x/api/governance) - [Previous Versions — 2.x — API Reference — Introspection](https://docs.openzeppelin.com/contracts-cairo/2.x/api/introspection) - [Previous Versions — 2.x — API Reference — Merkle Tree](https://docs.openzeppelin.com/contracts-cairo/2.x/api/merkle-tree) - [Previous Versions — 2.x — API Reference — Security](https://docs.openzeppelin.com/contracts-cairo/2.x/api/security) - [Previous Versions — 2.x — API Reference — Testing](https://docs.openzeppelin.com/contracts-cairo/2.x/api/testing) - [Previous Versions — 2.x — API Reference — UDC](https://docs.openzeppelin.com/contracts-cairo/2.x/api/udc) - [Previous Versions — 2.x — API Reference — Upgrades](https://docs.openzeppelin.com/contracts-cairo/2.x/api/upgrades) - [Previous Versions — 2.x — API Reference — Utilities](https://docs.openzeppelin.com/contracts-cairo/2.x/api/utilities) ## Arbitrum Stylus ### Arbitrum Stylus Contracts - [Overview](https://docs.openzeppelin.com/contracts-stylus) - [Access Control](https://docs.openzeppelin.com/contracts-stylus/access-control) - [Cryptography](https://docs.openzeppelin.com/contracts-stylus/crypto) - [Finance](https://docs.openzeppelin.com/contracts-stylus/finance) - [Tokens](https://docs.openzeppelin.com/contracts-stylus/tokens) - [Tokens — ERC-20](https://docs.openzeppelin.com/contracts-stylus/erc20) - [Tokens — ERC-721](https://docs.openzeppelin.com/contracts-stylus/erc721) - [Tokens — ERC-1155](https://docs.openzeppelin.com/contracts-stylus/erc1155) - [Tokens — ERC-4626](https://docs.openzeppelin.com/contracts-stylus/erc4626) - [Proxy Patterns — Proxy](https://docs.openzeppelin.com/contracts-stylus/proxy) - [Proxy Patterns — ERC-1967 Proxy](https://docs.openzeppelin.com/contracts-stylus/erc1967) - [Proxy Patterns — Beacon Proxy](https://docs.openzeppelin.com/contracts-stylus/beacon-proxy) - [Proxy Patterns — UUPS Proxy](https://docs.openzeppelin.com/contracts-stylus/uups-proxy) - [Utilities](https://docs.openzeppelin.com/contracts-stylus/utilities) - [Changelog](https://docs.openzeppelin.com/contracts-stylus/changelog) - [Previous Versions — v0.2.0 — Overview](https://docs.openzeppelin.com/contracts-stylus/0.2.0) - [Previous Versions — v0.2.0 — Access Control](https://docs.openzeppelin.com/contracts-stylus/0.2.0/access-control) - [Previous Versions — v0.2.0 — Common](https://docs.openzeppelin.com/contracts-stylus/0.2.0/common) - [Previous Versions — v0.2.0 — Cryptography](https://docs.openzeppelin.com/contracts-stylus/0.2.0/crypto) - [Previous Versions — v0.2.0 — ERC Standards — ERC-20](https://docs.openzeppelin.com/contracts-stylus/0.2.0/erc20) - [Previous Versions — v0.2.0 — ERC Standards — ERC-721](https://docs.openzeppelin.com/contracts-stylus/0.2.0/erc721) - [Previous Versions — v0.2.0 — ERC Standards — ERC-1155](https://docs.openzeppelin.com/contracts-stylus/0.2.0/erc1155) - [Previous Versions — v0.2.0 — ERC Standards — ERC-4626](https://docs.openzeppelin.com/contracts-stylus/0.2.0/erc4626) - [Previous Versions — v0.2.0 — ERC Standards — ERC-2981](https://docs.openzeppelin.com/contracts-stylus/0.2.0/erc2981) - [Previous Versions — v0.2.0 — Finance](https://docs.openzeppelin.com/contracts-stylus/0.2.0/finance) - [Previous Versions — v0.2.0 — Tokens](https://docs.openzeppelin.com/contracts-stylus/0.2.0/tokens) - [Previous Versions — v0.2.0 — Utilities](https://docs.openzeppelin.com/contracts-stylus/0.2.0/utilities) - [Previous Versions — v0.2.0 — Vesting Wallet](https://docs.openzeppelin.com/contracts-stylus/0.2.0/vesting-wallet) - [Previous Versions — v0.1.0 — Overview](https://docs.openzeppelin.com/contracts-stylus/0.1.0) - [Previous Versions — v0.1.0 — Access Control](https://docs.openzeppelin.com/contracts-stylus/0.1.0/access-control) - [Previous Versions — v0.1.0 — Cryptography](https://docs.openzeppelin.com/contracts-stylus/0.1.0/crypto) - [Previous Versions — v0.1.0 — ERC Standards — ERC-20](https://docs.openzeppelin.com/contracts-stylus/0.1.0/erc20) - [Previous Versions — v0.1.0 — ERC Standards — ERC-721](https://docs.openzeppelin.com/contracts-stylus/0.1.0/erc721) - [Previous Versions — v0.1.0 — Tokens](https://docs.openzeppelin.com/contracts-stylus/0.1.0/tokens) ## Sui - [Getting Started](https://docs.openzeppelin.com/contracts-sui) ### Sui Contracts - [Overview](https://docs.openzeppelin.com/contracts-sui/1.x) - [Learn — Overview](https://docs.openzeppelin.com/contracts-sui/1.x/learn) - [Learn — Math Walkthrough](https://docs.openzeppelin.com/contracts-sui/1.x/learn/math-walkthrough) - [Learn — Access Walkthrough](https://docs.openzeppelin.com/contracts-sui/1.x/learn/access-walkthrough) - [Packages — Integer Math](https://docs.openzeppelin.com/contracts-sui/1.x/math) - [Packages — Access](https://docs.openzeppelin.com/contracts-sui/1.x/access) - [API Reference — Integer Math](https://docs.openzeppelin.com/contracts-sui/1.x/api/math) - [API Reference — Access](https://docs.openzeppelin.com/contracts-sui/1.x/api/access) ## Midnight ### Midnight Contracts - [Overview](https://docs.openzeppelin.com/contracts-compact) - [Learn — Extensibility](https://docs.openzeppelin.com/contracts-compact/extensibility) - [Learn — ZK Circuits 101](https://docs.openzeppelin.com/contracts-compact/zkCircuits101) - [Modules — Access — Ownable](https://docs.openzeppelin.com/contracts-compact/ownable) - [Modules — Access — AccessControl](https://docs.openzeppelin.com/contracts-compact/accessControl) - [Modules — Security](https://docs.openzeppelin.com/contracts-compact/security) - [Modules — Tokens — FungibleToken](https://docs.openzeppelin.com/contracts-compact/fungibleToken) - [Modules — Tokens — NonFungibleToken](https://docs.openzeppelin.com/contracts-compact/nonFungibleToken) - [Modules — Tokens — MultiToken](https://docs.openzeppelin.com/contracts-compact/multitoken) - [Modules — Utils](https://docs.openzeppelin.com/contracts-compact/utils) - [API Reference — AccessControl API](https://docs.openzeppelin.com/contracts-compact/api/accessControl) - [API Reference — FungibleToken API](https://docs.openzeppelin.com/contracts-compact/api/fungibleToken) - [API Reference — MultiToken API](https://docs.openzeppelin.com/contracts-compact/api/multitoken) - [API Reference — NonFungibleToken API](https://docs.openzeppelin.com/contracts-compact/api/nonFungibleToken) - [API Reference — Ownable API](https://docs.openzeppelin.com/contracts-compact/api/ownable) - [API Reference — Security API](https://docs.openzeppelin.com/contracts-compact/api/security) - [API Reference — Utils API](https://docs.openzeppelin.com/contracts-compact/api/utils) ## Zama FHEVM ### Zama FHEVM Contracts - [Overview](https://docs.openzeppelin.com/confidential-contracts) - [Token](https://docs.openzeppelin.com/confidential-contracts/token) - [Changelog](https://docs.openzeppelin.com/confidential-contracts/changelog) - [API Reference — Overview](https://docs.openzeppelin.com/confidential-contracts/api) - [API Reference — Finance](https://docs.openzeppelin.com/confidential-contracts/api/finance): Smart contract finance utilities and implementations - [API Reference — Governance](https://docs.openzeppelin.com/confidential-contracts/api/governance): Smart contract governance utilities and implementations - [API Reference — Interfaces](https://docs.openzeppelin.com/confidential-contracts/api/interfaces): Smart contract interfaces utilities and implementations - [API Reference — Token](https://docs.openzeppelin.com/confidential-contracts/api/token): Smart contract token utilities and implementations - [API Reference — Utils](https://docs.openzeppelin.com/confidential-contracts/api/utils): Smart contract utils utilities and implementations ## Polkadot ### Polkadot Substrate Runtimes - [Overview](https://docs.openzeppelin.com/substrate-runtimes) - [General Guides — Quick Start](https://docs.openzeppelin.com/substrate-runtimes/guides/quick_start) - [General Guides — Weights & Fees](https://docs.openzeppelin.com/substrate-runtimes/guides/weights_fees) - [General Guides — Async Backing](https://docs.openzeppelin.com/substrate-runtimes/guides/async_backing) - [General Guides — Sending XCM between Parachains](https://docs.openzeppelin.com/substrate-runtimes/guides/hrmp_channels) - [General Guides — OpenZeppelin Pallet Abstractions](https://docs.openzeppelin.com/substrate-runtimes/guides/pallet_abstractions) - [General Guides — Pay DOT as a Fee](https://docs.openzeppelin.com/substrate-runtimes/guides/pay_dot_as_a_fee) - [EVM Template Guides — Contract Migration](https://docs.openzeppelin.com/substrate-runtimes/guides/contract_migration) - [EVM Template Guides — Predeployed Contracts](https://docs.openzeppelin.com/substrate-runtimes/guides/predeployed_contracts) - [EVM Template Guides — Testing with Zombienet](https://docs.openzeppelin.com/substrate-runtimes/guides/testing_with_zombienet) - [EVM Template Guides — RPC Differences](https://docs.openzeppelin.com/substrate-runtimes/guides/rpc_differences) - [Runtimes — Generic Runtime](https://docs.openzeppelin.com/substrate-runtimes/runtimes/generic) - [Runtimes — EVM Runtime](https://docs.openzeppelin.com/substrate-runtimes/runtimes/evm) - [Runtime Descriptions — XCM Executor](https://docs.openzeppelin.com/substrate-runtimes/runtime/xcm_executor) - [Pallet Specifications — cumulus_pallet_aura_ext](https://docs.openzeppelin.com/substrate-runtimes/pallets/aura_ext) - [Pallet Specifications — cumulus_pallet_parachain_system](https://docs.openzeppelin.com/substrate-runtimes/pallets/parachain-system) - [Pallet Specifications — cumulus_pallet_xcmp_queue](https://docs.openzeppelin.com/substrate-runtimes/pallets/xcmp-queue) - [Pallet Specifications — pallet_assets](https://docs.openzeppelin.com/substrate-runtimes/pallets/assets) - [Pallet Specifications — pallet_balances](https://docs.openzeppelin.com/substrate-runtimes/pallets/balances) - [Pallet Specifications — pallet_collator_selection](https://docs.openzeppelin.com/substrate-runtimes/pallets/collator-selection) - [Pallet Specifications — pallet_message_queue](https://docs.openzeppelin.com/substrate-runtimes/pallets/message-queue) - [Pallet Specifications — pallet_multisig](https://docs.openzeppelin.com/substrate-runtimes/pallets/multisig) - [Pallet Specifications — pallet_proxy](https://docs.openzeppelin.com/substrate-runtimes/pallets/proxy) - [Pallet Specifications — pallet_transaction_payment](https://docs.openzeppelin.com/substrate-runtimes/pallets/transaction_payment) - [Pallet Specifications — pallet_treasury](https://docs.openzeppelin.com/substrate-runtimes/pallets/treasury) - [Pallet Specifications — pallet_xcm](https://docs.openzeppelin.com/substrate-runtimes/pallets/xcm) - [Misc — Multisig Accounts](https://docs.openzeppelin.com/substrate-runtimes/misc/multisig-accounts) - [Appendix — Glossary](https://docs.openzeppelin.com/substrate-runtimes/glossary) - [Changelog](https://docs.openzeppelin.com/substrate-runtimes/changelog) - [Previous Versions — v2.0.2 — Overview](https://docs.openzeppelin.com/substrate-runtimes/2.0.2) - [Previous Versions — v2.0.2 — Quick Start](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/guides/quick_start) - [Previous Versions — v2.0.2 — Pallets — Assets](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/pallets/assets) - [Previous Versions — v2.0.2 — Pallets — Aura Ext](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/pallets/aura_ext) - [Previous Versions — v2.0.2 — Pallets — Balances](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/pallets/balances) - [Previous Versions — v2.0.2 — Pallets — Collator Selection](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/pallets/collator-selection) - [Previous Versions — v2.0.2 — Pallets — Message Queue](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/pallets/message-queue) - [Previous Versions — v2.0.2 — Pallets — Multisig](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/pallets/multisig) - [Previous Versions — v2.0.2 — Pallets — Parachain System](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/pallets/parachain-system) - [Previous Versions — v2.0.2 — Pallets — Proxy](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/pallets/proxy) - [Previous Versions — v2.0.2 — Pallets — Transaction Payment](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/pallets/transaction_payment) - [Previous Versions — v2.0.2 — Pallets — Treasury](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/pallets/treasury) - [Previous Versions — v2.0.2 — Pallets — XCM](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/pallets/xcm) - [Previous Versions — v2.0.2 — Pallets — XCMP Queue](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/pallets/xcmp-queue) - [Previous Versions — v2.0.2 — Runtimes — EVM](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/runtimes/evm) - [Previous Versions — v2.0.2 — Runtimes — Generic](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/runtimes/generic) - [Previous Versions — v2.0.2 — Runtimes — XCM Executor](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/runtime/xcm_executor) - [Previous Versions — v2.0.2 — Miscellaneous — Multisig Accounts](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/misc/multisig-accounts) - [Previous Versions — v2.0.2 — Glossary](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/glossary) ### Guides - [Previous Versions — v2.0.2 — Async Backing](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/guides/async_backing) - [Previous Versions — v2.0.2 — Contract Migration](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/guides/contract_migration) - [Previous Versions — v2.0.2 — HRMP Channels](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/guides/hrmp_channels) - [Previous Versions — v2.0.2 — Predeployed Contracts](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/guides/predeployed_contracts) - [Previous Versions — v2.0.2 — RPC Differences](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/guides/rpc_differences) - [Previous Versions — v2.0.2 — Testing with Zombienet](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/guides/testing_with_zombienet) - [Previous Versions — v2.0.2 — Weights & Fees](https://docs.openzeppelin.com/substrate-runtimes/2.0.2/guides/weights_fees) ## Uniswap Hooks ### Uniswap Hooks Contracts - [Overview](https://docs.openzeppelin.com/uniswap-hooks) - [Base](https://docs.openzeppelin.com/uniswap-hooks/base) - [Fee](https://docs.openzeppelin.com/uniswap-hooks/fee) - [Utilities](https://docs.openzeppelin.com/uniswap-hooks/utilities) - [Changelog](https://docs.openzeppelin.com/uniswap-hooks/changelog) - [API Reference — Overview](https://docs.openzeppelin.com/uniswap-hooks/api) - [API Reference — Base](https://docs.openzeppelin.com/uniswap-hooks/api/base): Smart contract base utilities and implementations - [API Reference — Fee](https://docs.openzeppelin.com/uniswap-hooks/api/fee): Smart contract fee utilities and implementations - [API Reference — General](https://docs.openzeppelin.com/uniswap-hooks/api/general): Smart contract general utilities and implementations - [API Reference — Interfaces](https://docs.openzeppelin.com/uniswap-hooks/api/interfaces): Smart contract interfaces utilities and implementations - [API Reference — Utils](https://docs.openzeppelin.com/uniswap-hooks/api/utils): Smart contract utils utilities and implementations ## OpenZeppelin Impact ### OpenZeppelin's Impact - [Overview](https://docs.openzeppelin.com/impact) - [Contracts — The Impact of OpenZeppelin Contracts](https://docs.openzeppelin.com/impact/contracts-impact) - [Contracts — Powering Top Financial Institutions](https://docs.openzeppelin.com/impact/contracts-for-financial-institutions) - [Contracts — The Future of OpenZeppelin Contracts](https://docs.openzeppelin.com/impact/contracts-future) - [Innovation & Research — Chain Abstraction](https://docs.openzeppelin.com/impact/chain-abstraction) - [Innovation & Research — Privacy](https://docs.openzeppelin.com/impact/privacy) - [Innovation & Research — Tokenization & Real World Assets](https://docs.openzeppelin.com/impact/tokenization-and-real-world-assets) ## Open Source Tools - [Relayer — Overview](https://docs.openzeppelin.com/relayer/1.4.x) - [Relayer — Quickstart](https://docs.openzeppelin.com/relayer/1.4.x/quickstart) - [Relayer — Configuration — Overview](https://docs.openzeppelin.com/relayer/1.4.x/configuration) - [Relayer — Configuration — Signers](https://docs.openzeppelin.com/relayer/1.4.x/configuration/signers) - [Relayer — Configuration — Network Configuration](https://docs.openzeppelin.com/relayer/1.4.x/configuration/network) - [Relayer — Configuration — Storage Configuration](https://docs.openzeppelin.com/relayer/1.4.x/configuration/storage) - [Relayer — EVM Integration](https://docs.openzeppelin.com/relayer/1.4.x/evm) - [Relayer — Solana Integration](https://docs.openzeppelin.com/relayer/1.4.x/solana) - [Relayer — API Reference — Overview](https://docs.openzeppelin.com/relayer/1.4.x/api) - [Relayer — API Reference — Relayers — List Relayers](https://docs.openzeppelin.com/relayer/1.4.x/api/listRelayers) - [Relayer — API Reference — Relayers — Create Relayer](https://docs.openzeppelin.com/relayer/1.4.x/api/createRelayer) - [Relayer — API Reference — Relayers — Get Relayer](https://docs.openzeppelin.com/relayer/1.4.x/api/getRelayer) - [Relayer — API Reference — Relayers — Delete Relayer](https://docs.openzeppelin.com/relayer/1.4.x/api/deleteRelayer) - [Relayer — API Reference — Relayers — Update Relayer](https://docs.openzeppelin.com/relayer/1.4.x/api/updateRelayer) - [Relayer — API Reference — Relayers — Get Relayer Balance](https://docs.openzeppelin.com/relayer/1.4.x/api/getRelayerBalance) - [Relayer — API Reference — Relayers — RPC](https://docs.openzeppelin.com/relayer/1.4.x/api/rpc) - [Relayer — API Reference — Relayers — Sign](https://docs.openzeppelin.com/relayer/1.4.x/api/sign) - [Relayer — API Reference — Relayers — Sign Transaction](https://docs.openzeppelin.com/relayer/1.4.x/api/signTransaction) - [Relayer — API Reference — Relayers — Sign Typed Data](https://docs.openzeppelin.com/relayer/1.4.x/api/signTypedData) - [Relayer — API Reference — Relayers — Get Relayer Status](https://docs.openzeppelin.com/relayer/1.4.x/api/getRelayerStatus) - [Relayer — API Reference — Relayers — Send Transaction](https://docs.openzeppelin.com/relayer/1.4.x/api/sendTransaction) - [Relayer — API Reference — Relayers — List Transactions](https://docs.openzeppelin.com/relayer/1.4.x/api/listTransactions) - [Relayer — API Reference — Relayers — Get Transaction by Nonce](https://docs.openzeppelin.com/relayer/1.4.x/api/getTransactionByNonce) - [Relayer — API Reference — Relayers — Delete Pending Transactions](https://docs.openzeppelin.com/relayer/1.4.x/api/deletePendingTransactions) - [Relayer — API Reference — Relayers — Get Transaction by ID](https://docs.openzeppelin.com/relayer/1.4.x/api/getTransactionById) - [Relayer — API Reference — Relayers — Replace Transaction](https://docs.openzeppelin.com/relayer/1.4.x/api/replaceTransaction) - [Relayer — API Reference — Relayers — Cancel Transaction](https://docs.openzeppelin.com/relayer/1.4.x/api/cancelTransaction) - [Relayer — API Reference — Relayers — Sponsored Transaction With Fee Payments](https://docs.openzeppelin.com/relayer/1.4.x/api/buildSponsoredTransaction) - [Relayer — API Reference — Relayers — Sponsored Transaction Fee Estimate](https://docs.openzeppelin.com/relayer/1.4.x/api/quoteSponsoredTransaction) - [Relayer — API Reference — Plugins — Call Plugin](https://docs.openzeppelin.com/relayer/1.4.x/api/callPlugin) - [Relayer — API Reference — Plugins — Call PluginGet](https://docs.openzeppelin.com/relayer/1.4.x/api/callPluginGet) - [Relayer — API Reference — Plugins — Get Plugin](https://docs.openzeppelin.com/relayer/1.4.x/api/getPlugin) - [Relayer — API Reference — Plugins — UpdatePlugin](https://docs.openzeppelin.com/relayer/1.4.x/api/updatePlugin) - [Relayer — API Reference — Plugins — ListPlugins](https://docs.openzeppelin.com/relayer/1.4.x/api/listPlugins) - [Relayer — API Reference — Notifications — List Notifications](https://docs.openzeppelin.com/relayer/1.4.x/api/listNotifications) - [Relayer — API Reference — Notifications — Create Notification](https://docs.openzeppelin.com/relayer/1.4.x/api/createNotification) - [Relayer — API Reference — Notifications — Get Notification](https://docs.openzeppelin.com/relayer/1.4.x/api/getNotification) - [Relayer — API Reference — Notifications — Delete Notification](https://docs.openzeppelin.com/relayer/1.4.x/api/deleteNotification) - [Relayer — API Reference — Notifications — Update Notification](https://docs.openzeppelin.com/relayer/1.4.x/api/updateNotification) - [Relayer — API Reference — Signers — List Signers](https://docs.openzeppelin.com/relayer/1.4.x/api/listSigners) - [Relayer — API Reference — Signers — Create Signer](https://docs.openzeppelin.com/relayer/1.4.x/api/createSigner) - [Relayer — API Reference — Signers — Get Signer](https://docs.openzeppelin.com/relayer/1.4.x/api/getSigner) - [Relayer — API Reference — Signers — Delete Signer](https://docs.openzeppelin.com/relayer/1.4.x/api/deleteSigner) - [Relayer — API Reference — Signers — Update Signer](https://docs.openzeppelin.com/relayer/1.4.x/api/updateSigner) - [Relayer — API Reference — Metrics — Scrape Metrics](https://docs.openzeppelin.com/relayer/1.4.x/api/scrapeMetrics) - [Relayer — API Reference — Metrics — List Metrics](https://docs.openzeppelin.com/relayer/1.4.x/api/listMetrics) - [Relayer — API Reference — Metrics — Metric Detail](https://docs.openzeppelin.com/relayer/1.4.x/api/metricDetail) - [Relayer — API Reference — Networks — List Networks](https://docs.openzeppelin.com/relayer/1.4.x/api/listNetworks) - [Relayer — API Reference — Networks — Update Network](https://docs.openzeppelin.com/relayer/1.4.x/api/updateNetwork) - [Relayer — API Reference — Health](https://docs.openzeppelin.com/relayer/1.4.x/api/health) - [Relayer — API Reference — Health — Readiness](https://docs.openzeppelin.com/relayer/1.4.x/api/readiness) - [Relayer — Project Structure](https://docs.openzeppelin.com/relayer/1.4.x/structure) - [Relayer — Project Roadmap](https://docs.openzeppelin.com/relayer/1.4.x/roadmap) - [Relayer — Plugins — Overview](https://docs.openzeppelin.com/relayer/1.4.x/plugins) - [Relayer — Plugins — Channels](https://docs.openzeppelin.com/relayer/1.4.x/plugins/channels) - [Relayer — Changelog](https://docs.openzeppelin.com/relayer/1.4.x/changelog) - [Relayer — Stellar Integration](https://docs.openzeppelin.com/relayer/1.4.x/stellar) - [Relayer — Guides — Overview](https://docs.openzeppelin.com/relayer/1.4.x/guides) - [Relayer — Guides — Stellar Channels Guide](https://docs.openzeppelin.com/relayer/1.4.x/guides/stellar-channels-guide) - [Relayer — Guides — Stellar Sponsored Transactions Guide](https://docs.openzeppelin.com/relayer/1.4.x/guides/stellar-sponsored-transactions-guide) - [Relayer — Guides — Stellar X402 Facilitator Guide](https://docs.openzeppelin.com/relayer/1.4.x/guides/stellar-x402-facilitator-guide) - [Relayer — Guides — Zama FHEVM Counter Guide](https://docs.openzeppelin.com/relayer/1.4.x/guides/zama-fhevm-counter-guide) - [Relayer — Zama FHEVM Integration](https://docs.openzeppelin.com/relayer/1.4.x/zama-fhevm) - [Monitor — Overview](https://docs.openzeppelin.com/monitor/1.3.x) - [Monitor — Quickstart](https://docs.openzeppelin.com/monitor/1.3.x/quickstart) - [Monitor — Architecture Guide](https://docs.openzeppelin.com/monitor/1.3.x/architecture) - [Monitor — Project Structure](https://docs.openzeppelin.com/monitor/1.3.x/project-structure) - [Monitor — RPC Client](https://docs.openzeppelin.com/monitor/1.3.x/rpc) - [Monitor — Custom scripts](https://docs.openzeppelin.com/monitor/1.3.x/scripts) - [Monitor — Error Handling](https://docs.openzeppelin.com/monitor/1.3.x/error) - [Monitor — Testing](https://docs.openzeppelin.com/monitor/1.3.x/testing) - [Monitor — Contribution guidelines](https://docs.openzeppelin.com/monitor/1.3.x/contribution) - [Monitor — Changelog](https://docs.openzeppelin.com/monitor/1.3.x/changelog) - [UI Builder — Quickstart](https://docs.openzeppelin.com/ui-builder) - [UI Builder — Networks](https://docs.openzeppelin.com/ui-builder/networks) - [UI Builder — Loading Contracts](https://docs.openzeppelin.com/ui-builder/loading-contracts) - [UI Builder — Functions](https://docs.openzeppelin.com/ui-builder/functions) - [UI Builder — Customization](https://docs.openzeppelin.com/ui-builder/customization) - [UI Builder — Exporting and History](https://docs.openzeppelin.com/ui-builder/exporting-and-history) - [UI Builder — Building Adapters](https://docs.openzeppelin.com/ui-builder/building-adapters) - [UI Builder — Changelog](https://docs.openzeppelin.com/ui-builder/changelog) - [Role Manager](https://docs.openzeppelin.com/role-manager) - [Defender — Overview](https://docs.openzeppelin.com/defender) - [Defender — Modules — Code Inspector](https://docs.openzeppelin.com/defender/module/code) - [Defender — Modules — Audit](https://docs.openzeppelin.com/defender/module/audit) - [Defender — Modules — Deploy](https://docs.openzeppelin.com/defender/module/deploy) - [Defender — Modules — Relayers](https://docs.openzeppelin.com/defender/module/relayers) - [Defender — Modules — Monitor](https://docs.openzeppelin.com/defender/module/monitor) - [Defender — Modules — Actions](https://docs.openzeppelin.com/defender/module/actions) - [Defender — Modules — Transaction Proposals](https://docs.openzeppelin.com/defender/module/transaction-proposals) - [Defender — Modules — Address Book](https://docs.openzeppelin.com/defender/module/address-book) - [Defender — Modules — Access Control](https://docs.openzeppelin.com/defender/module/access-control) - [Defender — Settings — Overview](https://docs.openzeppelin.com/defender/settings) - [Defender — Settings — Logs](https://docs.openzeppelin.com/defender/logs) - [Defender — Settings — Notifications](https://docs.openzeppelin.com/defender/settings/notifications) - [Defender — Tutorials — Deploy](https://docs.openzeppelin.com/defender/tutorial/deploy) - [Defender — Tutorials — Relayer](https://docs.openzeppelin.com/defender/tutorial/relayer) - [Defender — Tutorials — Monitor](https://docs.openzeppelin.com/defender/tutorial/monitor) - [Defender — Tutorials — Actions](https://docs.openzeppelin.com/defender/tutorial/actions) - [Defender — Tutorials — Access Control](https://docs.openzeppelin.com/defender/tutorial/access-control) - [Defender — Tutorials — Workflows](https://docs.openzeppelin.com/defender/tutorial/workflows) - [Defender — Guides — Deploy a smart contract on a forked network](https://docs.openzeppelin.com/defender/guide/forked-network) - [Defender — Guides — Adding a complete private network](https://docs.openzeppelin.com/defender/guide/private-network) - [Defender — Guides — Relaying gasless meta-transactions](https://docs.openzeppelin.com/defender/guide/meta-tx) - [Defender — Guides — Automatic monitoring for factory clones](https://docs.openzeppelin.com/defender/guide/factory-monitor) - [Defender — Guides — Managing roles of a TimelockController](https://docs.openzeppelin.com/defender/guide/timelock-roles) - [Defender — Guides — Managing usage notifications](https://docs.openzeppelin.com/defender/guide/usage-notification) - [Defender — Guides — Setup Fireblocks integrations within Defender](https://docs.openzeppelin.com/defender/guide/fireblock-defender-integration) - [Defender — Guides — Upgrading actions dependencies](https://docs.openzeppelin.com/defender/guide/upgrade-actions-dependencies) - [Defender — Defender as Code](https://docs.openzeppelin.com/defender/dac) - [Defender — Remix Plugin](https://docs.openzeppelin.com/defender/remix-plugin) - [Defender — Contracts Wizard Plugin](https://docs.openzeppelin.com/defender/wizard-plugin) - [Defender — SDK and API](https://docs.openzeppelin.com/defender/sdk) - [Defender — Migration to Open Source](https://docs.openzeppelin.com/defender/migration) - [Defender — Integrations](https://docs.openzeppelin.com/defender/integrations) - [Defender — FAQ](https://docs.openzeppelin.com/defender/faq) - [Defender — Changelog](https://docs.openzeppelin.com/defender/changelog)