> For the complete documentation index, see [llms.txt](https://docs.castmagic.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.castmagic.io/quick-start.md).

# Quick Start

Transcribe your first audio URL with a cURL.

The following minimal request is enough to transcribe your first audio:

```
curl https://app.castmagic.io/v1/transcripts \
    -X POST \
    -H "Authorization: Bearer API_SECRET" \
    -H "Content-Type: application/json" \
    -d '{"url": "AUDIO_URL"}'
```

Castmagic endpoints accept and respond with JSON. Continue to [Authentication](/authentication.md) for more information on generating and using API secrets.

This is just the start — the API also covers [file uploads](/endpoints/uploads.md) and [URL imports](/endpoints/imports.md), [recordings](/endpoints/recordings.md), [search](/endpoints/search.md), [AI content generation](/endpoints/generation.md), [chat](/endpoints/chat.md), [clip renders](/endpoints/renders.md), and [webhooks](/reference/webhooks.md). Which endpoints you can call depends on your [plan tier](/reference/plans-and-tiers.md).