elevenlabs

ElevenLabs API Skill

Overview

ElevenLabs provides state-of-the-art realistic text-to-speech (TTS), low-latency audio streaming, custom voice generation, and conversational AI agents.

Installation

npm install elevenlabs
pip install elevenlabs

Authentication & Setup

import { ElevenLabsClient } from 'elevenlabs';

const elevenlabs = new ElevenLabsClient({
  apiKey: process.env.ELEVENLABS_API_KEY,
});

Core API Operations

1. Streaming Text-to-Speech

import { Readable } from 'stream';

const audioStream = await elevenlabs.generate({
  voice: 'Rachel',
  text: 'Welcome to the Awesome API Skills directory. Ready to build something remarkable?',
  model_id: 'eleven_multilingual_v2',
  stream: true,
});

// Stream audio chunks directly to client HTTP response
audioStream.pipe(response);

2. List Available Voices

const voices = await elevenlabs.voices.getAll();
for (const voice of voices.voices) {
  console.log(`${voice.name} (${voice.voice_id}) - Category: ${voice.category}`);
}

3. Voice Settings Tuning

const audio = await elevenlabs.generate({
  voice: 'Adam',
  text: 'Engineers who master their tools shape the future.',
  voice_settings: {
    stability: 0.75,
    similarity_boost: 0.85,
    style: 0.2,
    use_speaker_boost: true,
  },
});

AI Pitfalls & Anti-Hallucination Guidelines

• Latency Optimization: Do not await full MP3 buffers for interactive assistants; always use stream: true with eleven_turbo_v2_5 for sub-300ms time-to-first-byte.
• Character Usage: Track character consumption in billing pipelines to prevent quota exhaustion.

Production Verification Checklist

• Streaming audio verified with chunked Transfer-Encoding
• Fallback voice configured if requested voiceId is unavailable
• Rate limits and character budget monitored

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Last Verified: 2026-07-03