# How do hooks work

Squid's hooks are powered by the [Squid Multicall contract.](https://docs.squidrouter.com/additional-resources/contracts) An arbitrary number of calls can be executed before or after a swap or bridge.

<figure><img src="/files/LFTvoiWAOQENEXv3c1uE" alt=""><figcaption></figcaption></figure>

Note that hooks can be executed before or after a single chain swap too.

<figure><img src="/files/62UQXrWcVcuT8YJBCfCu" alt=""><figcaption></figcaption></figure>


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