> For the complete documentation index, see [llms.txt](https://v1.docs.blueberry.garden/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v1.docs.blueberry.garden/developer-guides/contracts/vault/introduction.md). # Introduction Vault contracts inside of the Blueberry protocol, allow users to lend tokens that can be used as isolated collateral. There are two different types of vaults inside the protocol: * [**Blueberry SoftVault Contracts**](/developer-guides/contracts/vault/softvault.md)**:** The contracts that allow users to lend tokens (ERC20) and earn lending interest (interest rate is reflected from how much users borrow the token (Active utilization rate)). This is using the underlying Blueberry Money Market (Compound Fork) [Lending Protocol](/lending-protocol/overview.md) * [**Blueberry HardVault Contracts**](/developer-guides/contracts/vault/hardvault.md)**:** The contracts that allow users to lock LP (ERC1155) tokens as collateral. --- # 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: ``` GET https://v1.docs.blueberry.garden/developer-guides/contracts/vault/introduction.md?ask= ``` The question should be specific, self-contained, and written in natural language. 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.