> For the complete documentation index, see [llms.txt](https://docs.tydro.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tydro.com/ii.-core-concepts/asset-price-feeds-oracles.md).

# Asset Price Feeds (Oracles)

Tydro prices collateral and debt using external price feeds. This page describes the oracle sources. Reliability and fallback are covered in Oracle reliability

### Why oracles matter

The protocol needs an accurate price for every asset to value collateral and debt and to know when a position's health factor has reached the liquidation point. Those prices come from oracles. A wrong or stale price can value positions incorrectly, which is why Tydro uses established feeds and validates them before acting.

### Sources

Tydro prices assets from Chainlink, routed through the AaveOracle contract (`0x4758213271BFdC72224A7a8742dC865fC97756e1`). The feeds are live and in daily use.

{% hint style="info" %}
A multi-source redundancy layer that cross-checks independent providers is on the roadmap, not live today. See [Price Feed Security](/vi.-security/security-overview/technical-security/price-feed-security.md) for what protects price feeds now.
{% endhint %}


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