> ## Documentation Index
> Fetch the complete documentation index at: https://docs.soroswap.finance/llms.txt
> Use this file to discover all available pages before exploring further.

# Smart Contracts

> The two contracts behind the aggregator: the aggregator itself and the adapter each supported protocol is reached through.

The aggregator is two kinds of contract. One aggregator holds the adapter registry and
splits a trade; one adapter per protocol knows how to actually talk to that protocol.

<Columns cols={3}>
  <Card title="SoroswapAggregator" icon="layer-group" href="/aggregator/technical-reference/contracts/soroswap-aggregator">
    The entry point: registry, distribution, and the two swap functions.
  </Card>

  <Card title="Adapter Trait" icon="plug" href="/aggregator/technical-reference/contracts/adapter-trait">
    The interface every adapter implements.
  </Card>

  <Card title="SoroswapAdapter" icon="arrows-rotate" href="/aggregator/technical-reference/contracts/soroswap-adapter">
    The adapter that reaches the Soroswap AMM router.
  </Card>
</Columns>

Adapters ship for Soroswap, Phoenix, Aqua and Comet. Adding a protocol means writing an
adapter and registering it, not changing the aggregator.

Source: [github.com/soroswap/aggregator](https://github.com/soroswap/aggregator).