> For the complete documentation index, see [llms.txt](https://docs.logthm.com/currency-converter/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.logthm.com/currency-converter/en-us/basic/base-currency.md).

# Set Base Currency

```
/rate base [货币代码或别称]
/ra base [货币代码或别称]
/基准货币
```

留空查询当前使用的基准货币

当你使用转换指令时，可以省略目标货币，此时将向基准货币进行转换


---

# Agent Instructions
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## 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.logthm.com/currency-converter/en-us/basic/base-currency.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.

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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.