> For the complete documentation index, see [llms.txt](https://docs.ocean.fi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ocean.fi/protocol-architecture/04-protocol-architecture/oracles.md).

# Oracles

*Price feeds are provided by:*

* `*PythAggregatorV3`: external oracle provider\*
* `*OceanOracle`: internal price resolver with fallback logic\*

*Example:*

```
function getOCUSDValue(uint256 amount) public view returns (uint256 usdValue);
```