> For the complete documentation index, see [llms.txt](https://docs.granite.world/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.granite.world/readme.md). # Welcome Granite is a Bitcoin Liquidity Protocol that provides the first truly non-custodial, secure, and decentralized way to borrow against Bitcoin. The protocol allows borrowers to take stablecoin loans using Bitcoin as collateral, without exposure to counterparty or rehypothecation risk. Liquidity providers can earn yield on stablecoins by providing liquidity to the pool, which is then lent to borrowers. Loans in Granite are best thought of as lines of credit, without set terms or repayment schedules. As long as the borrower maintains an adequate loan-to-value ratio (LTV), keeping their account in good health, they are not subject to liquidation. If a borrower’s LTV falls too low, a portion of their capital will be liquidated to bring their account back to solvency. Granite enables BTC users to access DeFi without centralized custodians by leveraging Stacks’ soon-to-be-launched Nakamoto upgrade and [sBTC](http://sbtc.tech) Bitcoin bridge. --- # 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.granite.world/readme.md?ask=&goal= ``` `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.