HeyGen API v1

July 4, 2025

This is an experimental API for HeyGen, a leading AI video generation platform that creates professional-quality videos with AI avatars and voices.

HeyGen specializes in creating realistic AI-generated videos with digital avatars, making it ideal for content creators, marketers, and businesses looking to produce engaging video content without traditional filming requirements.

Our API provides access to HeyGen’s TTS (text-to-speech) capabilities and account management features, allowing you to integrate HeyGen’s powerful voice synthesis into your applications.

Using a free HeyGen account, you can execute an unlimited number of TTS generations using over 1.5K AI voices, including over 1K ElevenLabs Multilingual v2 voices.

Setup HeyGen

Postman collection

Articles:

• HeyGen API TTS Samples

Developer Community:

• Discord Server
• Telegram Channel
• r/HeyGen_API

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Table of contents

• GET accounts
• POST accounts
• GET accounts/email
• DELETE accounts/email
• GET tts/voices
• GET tts/languages
• POST tts/create