> For the complete documentation index, see [llms.txt](https://tech.usual.money/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tech.usual.money/smart-contracts/protocol-contracts/usd0a.md).

# USD0a

<table data-card-size="large" data-view="cards"><thead><tr><th align="center"></th><th data-hidden data-card-target data-type="content-ref"></th><th data-hidden data-card-cover data-type="image">Cover image</th></tr></thead><tbody><tr><td align="center"><strong>USD0a</strong> <strong>DAO Collateral Smart Contract</strong></td><td><a href="/pages/u3hr7PiUpt7PbR8wlHOO">/pages/u3hr7PiUpt7PbR8wlHOO</a></td><td data-object-fit="cover"><a href="/files/mRoGUG3gnWewZUoAn1hm">/files/mRoGUG3gnWewZUoAn1hm</a></td></tr><tr><td align="center"><strong>USD0a</strong> <strong>Swapper Engine Smart Contract</strong></td><td><a href="/pages/nDdGPaG95MB7JS8RQwOc">/pages/nDdGPaG95MB7JS8RQwOc</a></td><td data-object-fit="cover"><a href="/files/IKcZhsVeJNj0onWut15o">/files/IKcZhsVeJNj0onWut15o</a></td></tr><tr><td align="center"><strong>USD0a Gateway Smart Contract</strong></td><td><a href="/pages/HsiS8Gv2D6izuPIIRF9H">/pages/HsiS8Gv2D6izuPIIRF9H</a></td><td><a href="/files/0ZWBTkML3SMA8bSo1GHQ">/files/0ZWBTkML3SMA8bSo1GHQ</a></td></tr><tr><td align="center">USD0a Reverse Gateway Smart Contract</td><td><a href="/pages/JxlZbRDTS88piNVSR7Ix">/pages/JxlZbRDTS88piNVSR7Ix</a></td><td><a href="/files/4S7c1FAJrXmwqnP13RPn">/files/4S7c1FAJrXmwqnP13RPn</a></td></tr></tbody></table>