# Collateral Types **The following tokens are currently accepted as collateral to borrow TAD:** **TAU** - TAU is Lamdens’s native token. It is used as a unit of payment on the network (i.e., to pay network fees). **How will more collateral assets be added?** More collateral assets may be accepted to borrow TAD; however, this is subject to Rubix Governance. --- # Agent Instructions: 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://rubixdao.gitbook.io/rubixdao/collateral-types.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.