> For the complete documentation index, see [llms.txt](https://nervenetwork.gitbook.io/nerve/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nervenetwork.gitbook.io/nerve/application-protocol-module-description/order-book-module-paused.md).

# Order-Book Module（Paused）

The Order-Book Module provides the community with an order book DEX matching trading system on NerveChain. However, it has been rarely adopted and is now suspended. If a developer wants to use it to create an order book DEX, it will be easy.