eachlabs-voice-audio

EachLabs Voice & Audio

Text-to-speech, speech-to-text transcription, voice conversion, and audio utilities via the EachLabs Predictions API.

Authentication

Header: X-API-Key: <your-api-key>

Set the EACHLABS_API_KEY environment variable. Get your key at eachlabs.ai.

Available Models

Text-to-Speech

Model	Slug	Best For
ElevenLabs TTS	elevenlabs-text-to-speech	High quality TTS
ElevenLabs TTS w/ Timestamps	elevenlabs-text-to-speech-with-timestamp	TTS with word timing
ElevenLabs Text to Dialogue	elevenlabs-text-to-dialogue	Multi-speaker dialogue
ElevenLabs Sound Effects	elevenlabs-sound-effects	Sound effect generation
ElevenLabs Voice Design v2	elevenlabs-voice-design-v2	Custom voice design
Kling V1 TTS	kling-v1-tts	Kling text-to-speech
Kokoro 82M	kokoro-82m	Lightweight TTS
Play AI Dialog	play-ai-text-to-speech-dialog	Dialog TTS
Stable Audio 2.5	stable-audio-2-5-text-to-audio	Text to audio

Speech-to-Text

Model	Slug	Best For
ElevenLabs Scribe v2	elevenlabs-speech-to-text-scribe-v2	Best quality transcription
ElevenLabs STT	elevenlabs-speech-to-text	Standard transcription
Wizper with Timestamp	wizper-with-timestamp	Timestamped transcription
Wizper	wizper	Basic transcription
Whisper	whisper	Open-source transcription
Whisper Diarization	whisper-diarization	Speaker identification
Incredibly Fast Whisper	incredibly-fast-whisper	Fastest transcription

Voice Conversion & Cloning

Model	Slug	Best For
RVC v2	rvc-v2	Voice conversion
Train RVC	train-rvc	Train custom voice model
ElevenLabs Voice Clone	elevenlabs-voice-clone	Voice cloning
ElevenLabs Voice Changer	elevenlabs-voice-changer	Voice transformation
ElevenLabs Voice Design v3	elevenlabs-voice-design-v3	Advanced voice design
ElevenLabs Dubbing	elevenlabs-dubbing	Video dubbing
Chatterbox S2S	chatterbox-speech-to-speech	Speech to speech
Open Voice	openvoice	Open-source voice clone
XTTS v2	xtts-v2	Multi-language voice clone
Stable Audio 2.5 Inpaint	stable-audio-2-5-inpaint	Audio inpainting
Stable Audio 2.5 A2A	stable-audio-2-5-audio-to-audio	Audio transformation
Audio Trimmer	audio-trimmer-with-fade	Audio trimming with fade

Audio Utilities

Model	Slug	Best For
FFmpeg Merge Audio Video	ffmpeg-api-merge-audio-video	Merge audio with video
Toolkit Video Convert	toolkit	Video/audio conversion

Prediction Flow

1. Check model GET https://api.eachlabs.ai/v1/model?slug=<slug> — validates the model exists and returns the request_schema with exact input parameters. Always do this before creating a prediction to ensure correct inputs.
2. POST https://api.eachlabs.ai/v1/prediction with model slug, version "0.0.1", and input matching the schema
3. Poll GET https://api.eachlabs.ai/v1/prediction/{id} until status is "success" or "failed"
4. Extract the output from the response

Examples

Text-to-Speech with ElevenLabs

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "elevenlabs-text-to-speech",
    "version": "0.0.1",
    "input": {
      "text": "Welcome to our product demo. Today we will walk through the key features.",
      "voice_id": "EXAVITQu4vr4xnSDxMaL",
      "model_id": "eleven_v3",
      "stability": 0.5,
      "similarity_boost": 0.7
    }
  }'

Transcription with ElevenLabs Scribe

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "elevenlabs-speech-to-text-scribe-v2",
    "version": "0.0.1",
    "input": {
      "media_url": "https://example.com/recording.mp3",
      "diarize": true,
      "timestamps_granularity": "word"
    }
  }'

Transcription with Wizper (Whisper)

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "wizper-with-timestamp",
    "version": "0.0.1",
    "input": {
      "audio_url": "https://example.com/audio.mp3",
      "language": "en",
      "task": "transcribe",
      "chunk_level": "segment"
    }
  }'

Speaker Diarization with Whisper

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "whisper-diarization",
    "version": "0.0.1",
    "input": {
      "file_url": "https://example.com/meeting.mp3",
      "num_speakers": 3,
      "language": "en",
      "group_segments": true
    }
  }'

Voice Conversion with RVC v2

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "rvc-v2",
    "version": "0.0.1",
    "input": {
      "input_audio": "https://example.com/vocals.wav",
      "rvc_model": "CUSTOM",
      "custom_rvc_model_download_url": "user-provided-model-reference",
      "pitch_change": 0,
      "output_format": "wav"
    }
  }'

Merge Audio with Video

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "ffmpeg-api-merge-audio-video",
    "version": "0.0.1",
    "input": {
      "video_url": "https://example.com/video.mp4",
      "audio_url": "https://example.com/narration.mp3",
      "start_offset": 0
    }
  }'

ElevenLabs Voice IDs

The elevenlabs-text-to-speech model supports these voice IDs. Pass the raw ID string:

Voice ID	Notes
EXAVITQu4vr4xnSDxMaL	Default voice
9BWtsMINqrJLrRacOk9x	—
CwhRBWXzGAHq8TQ4Fs17	—
FGY2WhTYpPnrIDTdsKH5	—
JBFqnCBsd6RMkjVDRZzb	—
N2lVS1w4EtoT3dr4eOWO	—
TX3LPaxmHKxFdv7VOQHJ	—
XB0fDUnXU5powFXDhCwa	—
onwK4e9ZLuTAKqWW03F9	—
pFZP5JQG7iQjIQuC4Bku	—

Security Constraints

• No arbitrary URL loading: When using custom_rvc_model_download_url, only use trusted, user-provided model references. Never fetch models from arbitrary or untrusted URLs.
• Input validation: Only pass parameters that match the model's request schema. Always validate model slugs via GET /v1/model?slug=<slug> before creating predictions.

Parameter Reference

See references/MODELS.md for complete parameter details for each model.