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

# Introduction

> REST API reference for the Supertone TTS platform — endpoints, parameters, and response schemas.

The Supertone API is a RESTful API for generating speech with our voice AI models, browsing the voice library, cloning your own voices, and tracking usage.

This section is the **endpoint reference** — every path, parameter, and response. For tutorials, recipes, and SDK usage, see the [Docs](/en/docs/overview) section instead.

## Base URL

```
https://supertoneapi.com
```

All endpoints are versioned under `/v1`.

## Endpoint groups

<CardGroup cols={2}>
  <Card title="Voices" icon="magnifying-glass" href="/en/api-reference/endpoints/list-voices">
    List, search, and inspect preset voices.
  </Card>

  <Card title="Custom voices" icon="microphone" href="/en/api-reference/endpoints/list-custom-voices">
    Clone and manage your own voices.
  </Card>

  <Card title="Text to speech" icon="comment" href="/en/api-reference/endpoints/text-to-speech">
    Generate speech, stream chunks, or predict duration.
  </Card>

  <Card title="Usage" icon="credit-card" href="/en/api-reference/endpoints/get-usage">
    Credit balance and per-voice usage history.
  </Card>
</CardGroup>

## Getting started

If you're new to the Supertone API, start in the Docs:

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/en/docs/quickstart">
    Make your first TTS call in under five minutes.
  </Card>

  <Card title="SDKs" icon="code" href="/en/docs/developer-tools/overview">
    Official Python and TypeScript SDKs.
  </Card>
</CardGroup>