> For the complete documentation index, see [llms.txt](https://docs.notional.finance/traders/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.notional.finance/traders/notional-basics/lending.md).

# Lending

Users who want to lend their currency at a fixed interest rate can buy fCash. A lender exchanges their currency at the time of trade for a greater, fixed amount of that currency at a specific point in the future. The exchange rate that the user gets implies a fixed interest rate on their loan between the moment they trade and the time that their fCash matures.

In the following example, a lender loans 100 DAI to the liquidity pool at an fixed interest rate of 5% for 3 months. When the loan matures on December 1, 2020, the 100 DAI loan plus the 5 DAI fixed interest rate is returned to the lender.

![](/files/-MIphWcPwPr1uNXR7Qcv)

When the loan matures, the lender can redeem their fCash for currency.

![](/files/-MIph_fb_4GocLRzOUrs)


---

# 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.notional.finance/traders/notional-basics/lending.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.
