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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 section instead.

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Base URL

https://supertoneapi.com
All endpoints are versioned under /v1.

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Endpoint groups

Voices

List, search, and inspect preset voices.

Custom voices

Clone and manage your own voices.

Text to speech

Generate speech, stream chunks, or predict duration.

Usage

Credit balance and per-voice usage history.

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Getting started

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

Quickstart

Make your first TTS call in under five minutes.

SDKs

Official Python and TypeScript SDKs.