name: ElevenLabs Automation description: "Automate ElevenLabs text-to-speech workflows -- generate speech from text, browse and inspect voices, check subscription limits, list models, stream audio, and retrieve history via the Composio MCP integration." requires: mcp: - rube
ElevenLabs Automation
Automate your ElevenLabs text-to-speech workflows -- convert text to natural speech, browse the voice library, inspect voice details, check subscription credits, select TTS models, stream audio for low-latency delivery, and retrieve previously generated audio from history.
Toolkit docs: composio.dev/toolkits/elevenlabs
Setup
- Add the Composio MCP server to your client:
https://rube.app/mcp - Connect your ElevenLabs account when prompted (API key authentication)
- Start using the workflows below
Core Workflows
1. Generate Speech from Text
Use ELEVENLABS_TEXT_TO_SPEECH to convert text into a downloadable audio file.
Tool: ELEVENLABS_TEXT_TO_SPEECH
Inputs:
- voice_id: string (required) -- obtain from ELEVENLABS_GET_VOICES
- text: string (required) -- max ~10,000 chars (most models), 30,000 (Flash/Turbo v2), 40,000 (v2.5)
- model_id: string (default "eleven_monolingual_v1") -- e.g., "eleven_multilingual_v2"
- output_format: string (default "mp3_44100_128") -- see formats below
- optimize_streaming_latency: integer (0-4; NOT supported with eleven_v3)
- seed: integer (optional, for reproducibility -- not guaranteed)
- pronunciation_dictionary_locators: array (optional, up to 3 dictionaries)
Output formats:
- MP3:
mp3_22050_32,mp3_44100_32,mp3_44100_64,mp3_44100_96,mp3_44100_128,mp3_44100_192(Creator+) - PCM:
pcm_16000,pcm_22050,pcm_24000,pcm_44100(Pro+) - uLaw:
ulaw_8000(for Twilio)
Important: Output is a file object with a presigned download link at data.file.s3url (expires in ~1 hour). Download promptly.
2. Browse Available Voices
Use ELEVENLABS_GET_VOICES to list all voices with their attributes and settings.
Tool: ELEVENLABS_GET_VOICES
Inputs: (none)
Returns an array at data.voices[] with voice_id, name, labels (gender, accent, use_case), and settings.
3. Inspect a Specific Voice
Use ELEVENLABS_GET_VOICE to get detailed metadata for a candidate voice before synthesis.
Tool: ELEVENLABS_GET_VOICE
Inputs:
- voice_id: string (required) -- e.g., "21m00Tcm4TlvDq8ikWAM"
- with_settings: boolean (default false) -- include detailed voice settings
4. Check Subscription and Credits
Use ELEVENLABS_GET_USER_SUBSCRIPTION_INFO to verify plan limits and remaining credits before bulk generation.
Tool: ELEVENLABS_GET_USER_SUBSCRIPTION_INFO
Inputs: (none)
5. List Available TTS Models
Use ELEVENLABS_GET_MODELS to discover compatible models and filter by can_do_text_to_speech: true.
Tool: ELEVENLABS_GET_MODELS
Inputs: (none)
6. Stream Audio and Retrieve History
Use ELEVENLABS_TEXT_TO_SPEECH_STREAM for low-latency streamed delivery, and ELEVENLABS_GET_AUDIO_FROM_HISTORY_ITEM to re-download previously generated audio.
Tool: ELEVENLABS_TEXT_TO_SPEECH_STREAM
- Same core inputs as TEXT_TO_SPEECH but returns a stream for low-latency playback
Tool: ELEVENLABS_GET_AUDIO_FROM_HISTORY_ITEM
- history_item_id: string (required) -- ID from a previous generation
Known Pitfalls
| Pitfall | Detail |
|---|---|
| Text length limits | Most models cap at ~10,000-20,000 chars per request. Oversized input returns HTTP 400. Split long text into chunks (~5000 chars) and generate per chunk. |
| Output is a presigned URL | ELEVENLABS_TEXT_TO_SPEECH returns data.file.s3url with a ~1 hour expiry (X-Amz-Expires=3600). Download the audio file promptly. |
| Quota and credit errors | HTTP 401 with quota_exceeded or HTTP 402 payment_required means insufficient credits or tier restrictions. Check with ELEVENLABS_GET_USER_SUBSCRIPTION_INFO before bulk jobs. |
| Voice permissions | HTTP 401 with missing_permissions means the API key lacks voices_read scope. Verify key permissions. |
| Model compatibility | Not all models support TTS. Use ELEVENLABS_GET_MODELS and filter by can_do_text_to_speech: true. The optimize_streaming_latency parameter is NOT supported with eleven_v3. |
| Large voice list truncation | ELEVENLABS_GET_VOICES may return a large list. Select from the full data.voices[] payload -- previews may appear truncated. |
Quick Reference
| Tool Slug | Description |
|---|---|
ELEVENLABS_TEXT_TO_SPEECH | Convert text to speech, returns downloadable audio file |
ELEVENLABS_GET_VOICES | List all available voices with attributes |
ELEVENLABS_GET_VOICE | Get detailed info for a specific voice |
ELEVENLABS_GET_USER_SUBSCRIPTION_INFO | Check subscription plan and remaining credits |
ELEVENLABS_GET_MODELS | List available TTS models and capabilities |
ELEVENLABS_TEXT_TO_SPEECH_STREAM | Stream audio for low-latency delivery |
ELEVENLABS_GET_AUDIO_FROM_HISTORY_ITEM | Re-download audio from generation history |
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