# Utilities API Reference
URL: /docs/api-reference/utilities

Utility exports for custom rendering, composition, and advanced assistant-ui behavior that does not fit a larger API family.

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Utilities collect small public exports that are useful when building custom assistant-ui components but do not belong to a larger feature area. Start here when you recognize an export name but not its surrounding API family.

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## Pages \[#pages]

<Cards>
  <Card title="&#x22;Utilities&#x22;" href="&#x22;/docs/api-reference/utilities/miscellaneous&#x22;">
    {"Miscellaneous @assistant-ui/react utilities for custom rendering, composition, and advanced assistant UI behavior."}
  </Card>
</Cards>