> For the complete documentation index, see [llms.txt](https://docs.nexus.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nexus.xyz/exchange/zh-cn/overview/usdx.md).

# USDX

交易所计划采用的保证金和计价币种：USDX 将是什么，以及它不是什么。

**USDX 是 Nexus Exchange 计划采用的原生保证金和计价币种，与美元1:1锚定**。交易所的每个市场都将以 USDX 计价并作为保证金，因此交易者将在现货和永续合约中持有同一种抵押资产。USDX 尚未上线。测试网市场使用从水龙头领取的合成 USDX 作为保证金，这些 USDX 不具有任何现实价值。

## USDX 的不同之处

* **闲置资金可获得收益**。USDX 将通过美国国库券为闲置余额赚取收益。该收益并非来自新代币发行或通胀性奖励。
* **为交易所而生**。USDX 的设计目标是让交易所更好地服务交易者：统一的抵押品和计价资产，并可与 Nexus 区块链上的 EVM 生态系统组合使用。
* **将由美元1:1支持并锚定。**

## USDX 不是什么

USDX 不是独立的 DeFi 稳定币协议，也不是收益产品。它被设计为交易所的抵押品和计价层。

## 了解更多

USDX 将为交易所上的每个仓位提供支持。有关抵押品和杠杆的运作方式，请参阅[保证金机制](/exchange/zh-cn/trading/trading/perpetuals/margining.md)；如需为账户充值并下首笔订单，请参阅[快速入门](/exchange/zh-cn/trading/trading/quickstart.md)。


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://docs.nexus.xyz/exchange/zh-cn/overview/usdx.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.