# Citrea

> Bitcoin's First ZK Rollup

Citrea scales Bitcoin using zero-knowledge rollup technology, enabling programmable applications while maintaining Bitcoin security.

Citrea helps developers build programmable applications on Bitcoin by providing zero-knowledge rollup infrastructure. With it, users can access smart contracts on Bitcoin, benefit from EVM compatibility, and use trust-minimized bridging. Citrea maintains Bitcoin security while expanding its capabilities for decentralized finance.

- Type: Network
- Sector: Blockchain Platforms
- Status: Active
- Profile: https://thegrid.id/profiles/citrea

## Products

- [Citrea Rollup](https://thegrid.id/profiles/citrea): Citrea implements a Type 2 zkEVM rollup using Bitcoin as settlement and data availability layer, enabling EVM-compatible smart contracts secured by zero-knowledge proofs. The system processes transaction batches through recursive ZK proofs while maintaining trust-minimized bridging via BitVM. (L2, Open Beta, Main Product)
- [Clementine](https://thegrid.id/profiles/citrea): Clementine implements BitVM-based two-way peg architecture between Bitcoin and Citrea, facilitating trust-minimized BTC transfers through zero-knowledge proof verification. The system enables capital-efficient operator mechanisms and single-round fraud proofs for Bitcoin settlement. (Bridge, Open Beta)

## Links

- [Main](https://citrea.xyz)
- [Media Kit/branding](https://drive.google.com/drive/u/1/folders/1PyBMVom9sN5Qe529vCT8jBq3Q8fcHoS5)
- [Blog](https://www.blog.citrea.xyz)
- [Privacy policy](https://citrea.xyz/privacy-policy)
- [Terms of Service](https://citrea.xyz/terms-of-service)
- [Documentation](https://docs.citrea.xyz)
- [Twitter / X](https://x.com/citrea_xyz)
- [Discord](https://discord.com/invite/citrea)
- [GitHub](https://github.com/chainwayxyz)

## 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.
- All data is provided AS IS with no guarantees of accuracy.
- 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