HeyGen Voice Turbo Free API: How to Get $0 Text-to-Speech

Getting started is straightforward. Follow these steps:

Step 1: Create a HeyGen Account

Visit the official HeyGen website and create an account if you don’t already have one.

Step 2: Generate Your Free API Key

Open your HeyGen dashboard and navigate to the API keys section. Create a new API key.

Keep your API key private because it allows access to your account’s API services.

Step 3: Select the Free Voice Model

Use the following model ID in your API request:

heygen-voice-1-turbo-free

Step 4: Make Your First API Request

HeyGen provides a Text-to-Speech API endpoint that you can use to generate audio.

Here’s a simple example using cURL:

curl -X POST "https://api.heygen.com/v3/models/audio/tts" \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "heygen-voice-1-turbo-free",
    "voice_id": "YOUR_VOICE_ID",
    "text": "Hello! Welcome to HeyGen Voice Turbo."
  }'

Replace YOUR_API_KEY and YOUR_VOICE_ID with your actual credentials. The API response provides an audio file URL.

You can also experiment with different voices using HeyGen’s playground before integrating the API into your project.