# Heavyweight Integration (Multi-Chain Derivatives & Spot Exchange) > 💡 A case study of ZKEX 3.0: a multi-chain derivatives & spot exchange with a unified account The graphic below outlines how to integrate zkLink functional components in a decentralized way. This highly flexible integration model enhances dApps’ business customizability and autonomous cost management. ![ZKEX 3.0 Integration](/files/EDbBSy8LfoTiYldOz0F0) ## Integration Features * Autonomous account state-tree maintenance and on-chain event monitoring, eliminating the dependence on third-party services and ensuring stronger business reliability * Independent transaction ordering and block generation logic defined according to specific business logic * Autonomous data commitment to the Data Availability Layer (DA): The gas fees of on-chain data commitment are directly paid by the dApps, enabling proactive management of network operational costs ## Functions of ZKEX 3.0 Integration * High-performing order matching of spot and derivatives * High-performing risk engine for perpetual contracts * Unified accounts for perpetual contracts and spot trading for better UX and higher capital efficiency * Cross-margin for perpetual contracts --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.zk.link/integration-cases/derivatives.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.