> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.resemble.ai/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.resemble.ai/_mcp/server.

# Build Voice

`POST https://app.resemble.ai/api/v2/voices/{uuid}/build`

Start training a voice. Requires Business or Enterprise plan.

| Parameter | Type   | Required | Notes                       |
| --------- | ------ | -------- | --------------------------- |
| `uuid`    | string | ✅        | Voice UUID (URL parameter). |

| Field  | Type    | Required | Notes                                                  |
| ------ | ------- | -------- | ------------------------------------------------------ |
| `fill` | boolean | ❌        | Enable fill/speech-to-speech training. Default: false. |

```bash
curl --request POST 'https://app.resemble.ai/api/v2/voices/VOICE_UUID/build' \
  -H 'Authorization: Bearer YOUR_API_TOKEN' \
  -H 'Content-Type: application/json' \
  --data '{"fill": false}'
```

```json
{
  "success": true
}
```

Voices require at least 1 active recording or a custom dataset. Cannot build pre-built or marketplace voices. Recordings must meet quality standards (not silent, correct duration).