> For the complete documentation index, see [llms.txt](https://etherfi.gitbook.io/etherfi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://etherfi.gitbook.io/etherfi/products/borrow.md).

# Borrow

Borrow is a feature that allows you to earn rewards on your assets, and optionally use your assets as collateral that you can borrow against.

## Overview

Borrow is live. It lets ether.fi users earn yield on eligible assets and borrow against their portfolio without selling it. Borrowing is overcollateralized, so the value of the supplied collateral must remain sufficient to support the outstanding debt.

{% hint style="info" %}
The app is the source of truth for your current Product LTV, health factor, interest rates, and available-to-borrow amount. These values can change with market conditions and risk configuration.
{% endhint %}

## In this section

* [Technical documentation](/etherfi/products/borrow/technical-documentation.md) - high-level overview of how borrowing and lending works
* [Borrowing Power, Health Factor, and Liquidation](/etherfi/products/borrow/borrowing-power-and-liquidation.md) - how much you can borrow, how safe your position is, and what happens if it is liquidated
* [Parameters](/etherfi/products/borrow/lending-market-parameters.md) - overview of contracts and asset configuration
* [Price Feeds](/etherfi/products/borrow/price-feeds.md) - how collateral is priced and where those prices come from


---

# 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://etherfi.gitbook.io/etherfi/products/borrow.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.