Voice Management

Manage your Stealth TTS voices — list available voices, clone custom voices from audio samples, and delete cloned voices.

GET /api/voices/stealth

List available Stealth voices. Returns built-in voices plus any voices you have cloned.

Example Request

curl "https://api.algrow.online/api/voices/stealth" \ -H "Authorization: Bearer YOUR_API_KEY"

Response

{
                  "success": true,
                  "voices": [
                    {
                      "voice_id": "james",
                      "name": "James",
                      "language": "en",
                      "description": "",
                      "tags": [],
                      "is_cloned": false
                    },
                    {
                      "voice_id": "my-custom-voice",
                      "name": "My Custom Voice",
                      "language": "en",
                      "description": "Cloned from sample",
                      "tags": ["custom"],
                      "is_cloned": true
                    }
                  ]
                }

Response Fields

Field	Type	Description
voice_id	string	Use this as the `voice_id` parameter in `/api/generate-simple`
name	string	Display name of the voice
language	string	Language code (e.g. `en`, `es`, `de`)
is_cloned	boolean	Whether this voice was cloned by you

200 Success 401 Auth failed

POST /api/voices/clone

Clone a custom Stealth voice from an audio sample. Upload up to 30 seconds of clear speech audio. The cloned voice can then be used with provider=stealth in the generate endpoint.

Clone limits by plan: Professional — 15 clones, Ultimate — unlimited. Requires Professional or Ultimate plan.

Request Parameters (multipart form-data)

Name	Type	Required	Default	Description
displayName	string	Required	—	Name for the cloned voice
audioFile	file	Required	—	Audio sample (MP3, WAV, M4A, OGG, WEBM). Max 15MB, max 30 seconds.
langCode	string	Optional	EN_US	Language of the audio. Values: `EN_US`, `ES_ES`, `FR_FR`, `DE_DE`, `PT_BR`, `IT_IT`, `JA_JP`, `KO_KR`, `ZH_CN`, `RU_RU`, `AR_SA`, `PL_PL`, `NL_NL`, `HI_IN`, `HE_IL`
transcription	string	Optional	—	Text transcription of the audio sample (improves clone quality)
description	string	Optional	—	Description of the voice
tags	string	Optional	—	Comma-separated tags (e.g. `narrator,deep`)
removeBackgroundNoise	string	Optional	false	Set to `true` to remove background noise from the sample

Example Request

curl -X POST "https://api.algrow.online/api/voices/clone" \ -H "Authorization: Bearer YOUR_API_KEY" \ -F "displayName=My Narrator" \ -F "langCode=EN_US" \ -F "audioFile=@sample.mp3" \ -F "transcription=Hello, this is a sample of my voice." \ -F "removeBackgroundNoise=true"

Response

{
                  "success": true,
                  "voice": {
                    "voice_id": "my-narrator",
                    "name": "My Narrator",
                    "language": "EN_US",
                    "description": "",
                    "tags": []
                  }
                }

200 Created 400 Validation error 401 Auth failed 403 Plan / limit

DELETE /api/voices/stealth/:voice_id

Delete a cloned Stealth voice. Only voices you own can be deleted. This action is permanent.

Path Parameters

Name	Type	Required	Description
voice_id	string	Required	The `voice_id` of the cloned voice to delete

Example Request

curl -X DELETE "https://api.algrow.online/api/voices/stealth/my-narrator" \ -H "Authorization: Bearer YOUR_API_KEY"

Response

{
  "success": true
}

200 Deleted 401 Auth failed 404 Not found

GET /api/voices/minimax

List MiniMax voices you have cloned. MiniMax has no built-in catalog — every voice in your library was created via /api/voices/minimax/clone. Requires Professional or Ultimate plan.

Headers

Name	Type	Required	Description
Authorization	string	Required	Bearer token: `Bearer YOUR_API_KEY`

Example Request

curl "https://api.algrow.online/api/voices/minimax" \ -H "Authorization: Bearer YOUR_API_KEY"

Response

{
                  "success": true,
                  "voices": [
                    {
                      "voice_id": "user_abc123_my_narrator",
                      "name": "My Narrator",
                      "language": "English",
                      "is_cloned": true,
                      "created_at": "2026-06-01T12:00:00"
                    }
                  ]
                }

Response Fields

Field	Type	Description
voice_id	string	Use this as the `voice_id` parameter in `/api/generate-simple` with `provider=minimax`
name	string	Display name you assigned when cloning
language	string	Language tag assigned at clone time (e.g. `English`, `Spanish`)
is_cloned	boolean	Always `true` — MiniMax voices are user-cloned only
created_at	string	ISO-8601 timestamp when the voice was cloned

200 Success 401 Auth failed 403 Plan required

POST /api/voices/minimax/clone

Clone a custom MiniMax voice from an audio sample. Upload a clear speech sample of at least 30 seconds. The cloned voice can then be used with provider=minimax in the generate endpoint. Requires Professional or Ultimate plan.

Headers

Name	Type	Required	Description
Authorization	string	Required	Bearer token: `Bearer YOUR_API_KEY`
Content-Type	string	Auto	Set automatically by `curl -F`. If manual: `multipart/form-data`

Clone limits by plan: Starter — 3 clones, Professional — 8 clones, Ultimate — 15 clones. Pro/Ultimate required to use this endpoint — the Starter limit is informational only.

Request Parameters (multipart form-data)

Name	Type	Required	Default	Description
voice_name	string	Required	—	Display name for the cloned voice
audio_file	file	Required	—	Audio sample (MP3, WAV, M4A, OGG, WEBM). Max 5MB. Min 30 seconds.
language	string	Optional	English	Language of the sample. Values: `English`, `Chinese`, `Spanish`, `French`, `German`, `Italian`, `Portuguese`, `Polish`, `Russian`, `Ukrainian`, `Czech`, `Slovak`, `Croatian`, `Serbian`, `Bulgarian`, `Dutch`, `Romanian`, `Swedish`, `Norwegian`, `Afrikaans`, `Catalan`, `Greek`, `Lithuanian`, `Latvian`, `Vietnamese`, `Indonesian`, `Malay`, `Tagalog`, `Swahili`, `Hindi`, `Japanese`, `Korean`, `Danish`, `Finnish`, `Hungarian`, `Slovenian`
need_noise_reduction	string	Optional	true	Set to `false` to skip background-noise reduction on the sample

Example Request

curl -X POST "https://api.algrow.online/api/voices/minimax/clone" \ -H "Authorization: Bearer YOUR_API_KEY" \ -F "voice_name=My Narrator" \ -F "audio_file=@sample.mp3" \ -F "language=English" \ -F "need_noise_reduction=true"

Response

{
                  "success": true,
                  "voice": {
                    "voice_id": "user_abc123_my_narrator",
                    "name": "My Narrator",
                    "language": "English",
                    "is_cloned": true
                  }
                }

Response Fields

Field	Type	Description
voice_id	string	Use this as the `voice_id` parameter in `/api/generate-simple` with `provider=minimax`
name	string	Display name you supplied
language	string	Language tag assigned to the clone
is_cloned	boolean	Always `true`

200 Created 400 Validation error 401 Auth failed 403 Plan / limit 502 Upstream error

DELETE /api/voices/minimax/{voice_id}

Delete one of your cloned MiniMax voices. Removes the voice from your library and best-effort deletes it upstream. Requires Professional or Ultimate plan.

Headers

Name	Type	Required	Description
Authorization	string	Required	Bearer token: `Bearer YOUR_API_KEY`

Path Parameters

Name	Type	Required	Description
voice_id	string	Required	The `voice_id` of one of your cloned MiniMax voices (from /api/voices/minimax)

Example Request

curl -X DELETE "https://api.algrow.online/api/voices/minimax/user_abc123_my_narrator" \ -H "Authorization: Bearer YOUR_API_KEY"

Response

{
                  "success": true
                }

200 Deleted 401 Auth failed 403 Plan required 404 Not owned

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