# OpenZeppelin

> The standard for secure onchain applications at any scale

OpenZeppelin provides security tools and services for blockchain developers to build and operate secure smart contracts across multiple networks.

OpenZeppelin offers open-source contract libraries, developer tools, and security services for blockchain applications. The company specializes in smart contract security with libraries for multiple languages, a security monitoring platform, and professional audit services that have secured billions in digital assets.

- Type: Company
- Sector: Security
- Status: Active
- Founded: 2016-08-01
- Profile: https://thegrid.id/profiles/openzeppelin

## Products

- [OpenZeppelin Contracts](https://thegrid.id/profiles/openzeppelin): OpenZeppelin Contracts is a library of modular and reusable smart contracts available for Ethereum-compatible blockchains in Solidity and for Starknet in Cairo, implementing standards like ERC20 and ERC721 with focus on security, gas efficiency, and best practices. (Developer Tooling, Live, Main Product)
- [OpenZeppelin Defender](https://thegrid.id/profiles/openzeppelin): A secure operations platform for smart contract development that enables secure automation, monitoring, and management of blockchain applications across 30+ networks. (Developer Tooling, Live)
- [Ethernaut](https://thegrid.id/profiles/openzeppelin): Ethernaut is an educational platform providing interactive smart contract security challenges where developers can practice identifying and exploiting vulnerabilities in a controlled environment. (Education and Training, Live)
- [OpenZeppelin Security Audits](https://thegrid.id/profiles/openzeppelin): Professional security audit services for smart contracts, ZK proofs, and blockchain infrastructure performed by specialized security researchers to identify vulnerabilities before deployment. (Smart Contract Audits, Live)

## Links

- [Main](https://www.openzeppelin.com)
- [Blog](https://blog.openzeppelin.com)
- [Documentation](https://docs.openzeppelin.com)
- [Media Kit/branding](https://www.openzeppelin.com/brand-kit)
- [GitHub](https://github.com/openzeppelin)
- [Twitter / X](https://x.com/OpenZeppelin)
- [LinkedIn](https://www.linkedin.com/company/openzeppelin)

## Legal

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Model 2 - commercial licenses. The Grid Data Service (TGDS) is also available as a commercial license. See [Web Services Terms](https://about.thegrid.id/legal/web-services-terms) for commercial use that is not covered by the open data service.

The following applies to both licensing models.
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- The Grid does not provide investment, legal, or tax advice, and
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- [Data Licensing & Disclaimers](https://about.thegrid.id/legal/data-licensing-and-disclaimers): Licensing models and disclaimers
- [Open Data (ODbL)](https://about.thegrid.id/legal/open-data): Open Database License terms and scope for The Grid's open data service.
- [Attribution Guidelines](https://about.thegrid.id/legal/open-data-attribution-guidelines): How to attribute The Grid's data when using the open data service.
- [Web Services Terms](https://about.thegrid.id/legal/web-services-terms): commercial Terms for using data services.
- [All Legal Documents](https://about.thegrid.id/legal): Full index of terms, policies, and disclosures

## Optional

- [TGS Field Descriptions](https://github.com/The-Grid-Data/workspace-public/blob/main/references/tgs-field-descriptions.md): Schema field definitions for The Grid's data model
- [TGS JSON Structure](https://github.com/The-Grid-Data/workspace-public/blob/main/references/tgs-json-structure.md): Data model structure and relationships
- [Product Type Definitions](https://github.com/The-Grid-Data/workspace-public/blob/main/references/product-type-definitions.md): Definitions for each product type
- [Product Type Classification](https://github.com/The-Grid-Data/workspace-public/blob/main/references/product-type-classification.md): Guide for classifying products into types
- [Grid MCP Guide](https://github.com/The-Grid-Data/workspace-public/blob/main/grid-search/skills/grid-query/references/grid-mcp-guide.md): How to query The Grid programmatically via MCP