Docs
Text-to-Speech
Generate TTS audio and manage voices from your MCP client.
Browse voices, generate audio, and check job status. Supports both ElevenLabs and Stealth TTS providers.
list_voices
Browse and search available TTS voices. Returns voice IDs, names, previews, and metadata. Set stealth=true for Stealth provider voices.
| Parameter | Type | Default | Description |
|---|---|---|---|
| search | string | null | Search by voice name or labels |
| gender | string | null | Filter: male, female, or neutral |
| age | string | null | Filter: young, middle_aged, or old |
| language | string | null | Language code (e.g. en, es, fr) |
| accent | string | null | Filter by accent (e.g. american, british) |
| sort | string | trending | Sort: trending, created_date, usage_character_count_1y |
| page_size | integer | 30 | Results per page (max 100) |
| page | integer | 0 | Page number (0-indexed) |
| stealth | boolean | false | Use Stealth voices endpoint instead of ElevenLabs |
| minimax | boolean | false | Use MiniMax voices endpoint (cloned MiniMax voices only) |
Example prompt
Show me young male American English voices
generate_tts
Generate text-to-speech audio. Submits a job, polls until complete, returns the permanent hosted audio URL. Requires Professional or Ultimate plan.
| Parameter | Type | Default | Description |
|---|---|---|---|
| script | string | required | Text to convert to speech (max 200,000 characters) |
| voice_id | string | required | Voice ID from list_voices, or voice name for Stealth provider |
| provider | string | elevenlabs | TTS provider: elevenlabs, stealth, or minimax |
| model_id | string | null | ElevenLabs model (e.g. eleven_multilingual_v2, eleven_flash_v2_5) |
| stability | number | null | Voice consistency 0.0-1.0 (ElevenLabs only) |
| similarity_boost | number | null | Voice match accuracy 0.0-1.0 (ElevenLabs only) |
| style | number | null | Style exaggeration 0.0-1.0 (ElevenLabs only) |
| speed | number | null | Playback speed 0.7-1.2 (ElevenLabs) or 0.5-2.0 (MiniMax) |
| temperature | number | null | Expressiveness — higher is more expressive (Stealth only) |
| speaking_rate | number | null | Speaking speed multiplier (Stealth only) |
| stealth_model | string | 1.5 | Stealth model tier (Stealth only). 1.5 = standard model (1× characters, default); 2.0 = Stealth 2.0, our newest, most capable model (2× characters). |
| pitch | integer | null | Pitch shift -12..+12 (MiniMax only) |
| volume | number | null | Volume 0.0-10.0 (MiniMax only) |
| voice_name | string | null | Human-readable voice label for your reference |
| custom_title | string | null | Custom filename for output MP3 (without extension) |
| srt_format | string | off | SRT transcript format (ElevenLabs and Stealth). 'off' = no SRT reformat, 'default' = original word-level captions, '1' / '2' / '3' / '5' = N words per caption (social-video style), 'sentence' = one full sentence per caption. For ElevenLabs, non-'off' values turn SRT generation on and bill 1.2× the script character count (the SRT pass runs an extra forced-alignment step); 'off' bills 1×. Stealth always includes a word-level SRT as transcript_url at no extra cost, so the preset never changes the price. 1/2/3/5/sentence additionally fetch the upstream SRT and regroup it. Mirrors the web UI's SRT preset. |
Example prompt
Generate a voiceover using the voice 'Adam' saying: Welcome to today's video about productivity tips
get_tts_job_status
Check the status of a TTS generation job. Use this to retrieve the audio_url for a previously submitted job.
| Parameter | Type | Default | Description |
|---|---|---|---|
| job_id | string | required | Job ID returned from generate_tts |
No example for this one.
list_tts_jobs
List your recent TTS generation jobs, sorted by creation time (newest first). No parameters required.
Example prompt
Show me my recent TTS generations
clone_voice
Clone a voice using the Stealth voice engine or MiniMax. Upload an audio sample and get a reusable voice ID. Requires Professional or Ultimate plan.
| Parameter | Type | Default | Description |
|---|---|---|---|
| display_name | string | required | Display name for the cloned voice |
| audio_url | string | required | URL to the audio sample (MP3, WAV, M4A, OGG, WEBM; max 15MB) |
| lang_code | string | EN_US | Language code (e.g. EN_US, ES_MX, FR_FR, DE_DE, JA_JP) |
| description | string | null | Description of the voice |
| provider | string | stealth | Voice engine: stealth or minimax |
| voice_name | string | null | Display name (MiniMax only — use display_name for Stealth) |
| language | string | English | Language tag (MiniMax only) — e.g. English, Spanish, French. See full list at /docs. |
| need_noise_reduction | string | true | Strip background noise (MiniMax only). Values: true or false. |
Example prompt
Clone this voice sample as 'My Narrator' using the audio at https://example.com/sample.mp3
delete_voice
Delete a cloned Stealth or MiniMax voice by ID.
| Parameter | Type | Default | Description |
|---|---|---|---|
| voice_id | string | required | ID of the cloned voice to delete |
| provider | string | stealth | Voice engine: stealth or minimax |
No example for this one.