> 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/utility-contracts/usd0.md).

# USD0

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th data-hidden data-card-cover data-type="image">Cover image</th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>What is the ClassicalOracle?</strong></td><td data-object-fit="cover"><a href="/files/ayHj7MHSh5BzFJ4j11pI">/files/ayHj7MHSh5BzFJ4j11pI</a></td><td><a href="/pages/VavVzfKhyYQmrBH1GWDO">/pages/VavVzfKhyYQmrBH1GWDO</a></td></tr><tr><td><strong>What is the Abstract Oracle?</strong></td><td data-object-fit="cover"><a href="/files/AIkjlyLrpNbjp7aQiAbF">/files/AIkjlyLrpNbjp7aQiAbF</a></td><td><a href="/pages/kZOhxdGxlLLFmcpPaNQY">/pages/kZOhxdGxlLLFmcpPaNQY</a></td></tr><tr><td><strong>What Oracles does Pyth provide?</strong></td><td data-object-fit="cover"><a href="/files/8cw1PnWhHGGV21yCcrXl">/files/8cw1PnWhHGGV21yCcrXl</a></td><td><a href="/pages/zTWFyyJjRgGUSahimZ2o">/pages/zTWFyyJjRgGUSahimZ2o</a></td></tr><tr><td><strong>What Oracles does Chainlink provide?</strong></td><td data-object-fit="cover"><a href="/files/kKagHZyi84MxG6zP26pm">/files/kKagHZyi84MxG6zP26pm</a></td><td></td></tr></tbody></table>