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What Are Live Captions?

TikTool Live Captions provides real-time AI-powered transcription and translation for any TikTok Live stream. Convert spoken audio into text with sub-second latency, detect the speaker’s language automatically, and translate to 50+ languages.

WebSocket API

Connect via WebSocket for real-time caption events.

Node.js SDK

Use the TikTokCaptions class for easy integration.

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Features

  • Auto Language Detection — Automatically detects the speaker’s language
  • 50+ Translation Languages — Translate captions in real-time
  • Speaker Diarization — Identify different speakers
  • Partial & Final Results — Get instant partial captions and polished final text
  • Credit-Based Pricing — 1 credit = 1 minute of audio in 1 language

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Caption Credit Pricing

PackCreditsPriceRate
Starter1,000$10$0.010/credit
Creator5,000$35$0.007/credit
Agency20,000$100$0.005/credit
Caption credits require an active Basic subscription or higher. Multi-language translation multiplies credit usage (2 languages = 2× credits).

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Quick Example

import WebSocket from 'ws';

const ws = new WebSocket(
  'wss://api.tik.tools/captions?uniqueId=streamer&apiKey=YOUR_KEY&translate=en&max_duration_minutes=120'
);

ws.on('message', (data) => {
  const msg = JSON.parse(data.toString());
  switch (msg.type) {
    case 'caption':
      const prefix = msg.speaker ? `[${msg.speaker}] ` : '';
      console.log(`${prefix}${msg.text}${msg.isFinal ? ' ✓' : '...'}`);
      break;
    case 'translation':
      console.log(`  → ${msg.text}`);
      break;
    case 'credits':
      console.log(`Credits: ${msg.remaining}/${msg.total} min remaining`);
      break;
  }
});