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

# useRequestTeardown

> Request app-initiated teardown.

<Badge color="yellow">sunpeak API</Badge>

## Overview

Returns a function to request the host to tear down the app. If the host approves, it will send the standard teardown signal back (triggering any [`useTeardown`](/app-framework/hooks/use-teardown) callbacks) before unmounting the iframe.

This is for app-initiated close, as opposed to host-initiated teardown handled by `useTeardown`.

<Card horizontal title="Wraps requestTeardown" icon="cube" href="/mcp-apps/app/requests">
  MCP Apps SDK reference
</Card>

## Import

```tsx theme={null}
import { useRequestTeardown } from 'sunpeak';
```

## Signature

```tsx theme={null}
function useRequestTeardown(): () => Promise<void>
```

## Returns

<ResponseField name="requestTeardown" type="() => Promise<void>">
  Function to request the host to tear down this app.
</ResponseField>

## Usage

```tsx theme={null}
import { useRequestTeardown } from 'sunpeak';

function MyResource() {
  const requestTeardown = useRequestTeardown();

  return (
    <button onClick={() => requestTeardown()}>
      Close App
    </button>
  );
}
```