> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt.

## Audio Streaming in API Explorer

api-reference

Added support for streaming audio directly within the API Explorer. This feature enables testing audio endpoints without leaving the documentation.

Check it out live in ElevenLabs' [API Explorer](https://elevenlabs.io/docs/api-reference/text-to-speech/convert?playground=/docs/api-reference/text-to-speech/convert-as-stream) to let users test text-to-speech endpoints and hear the results instantly.

Read the docs

## Form Data Optimization

performance

Enhanced handling of URL parameters and form data in edge functions. Documentation playground now handles complex data structures more efficiently.

```typescript
const formConfig = {
  encoding: 'application/x-www-form-urlencoded',
  arrayFormat: 'brackets',
  allowNullables: true,
  sanitize: true,
  maxDepth: 5
}
```

Read the docs