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heygen
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Schema
Generate
Filter operations
AI Clipping
4
API Keys
1
Asset Batches
4
Assets
7
Audio
9
Avatars
12
Background Removal
4
Batches
3
Brand
10
Custom Agents
5
Durable Workflows
13
Filler Word Removal
2
Folders
2
HyperFrames
4
Images
2
Lipsync
5
Lipsync Batches
3
Models
12
get
/v3/models/audio/voices
List Audio Voices
post
/v3/models/audio/voices
Create or Retrain an Audio Voice
post
/v3/models/audio/sts
Convert Speech
post
/v3/models/audio/tts
Generate Speech
post
/v3/models/audio/tts/stream
Stream Speech
get
/v3/models/audio/voices/{voice_id}
Get an Audio Voice
delete
/v3/models/audio/voices/{voice_id}
Delete an Audio Voice
patch
/v3/models/audio/voices/{voice_id}
Update an Audio Voice
post
/v3/models/videos
Create HeyGen Video
get
/v3/models/videos/{video_id}
Get HeyGen Video
post
/v3/models/images
Create HeyGen Image
get
/v3/models/images/{generation_id}
Get HeyGen Image
Podcasts
4
Templates
7
User
2
Video Agent
9
Video Analysis
2
Video Generations
2
Video Quality
4
Video Translate
16
Video Translation Batches
3
Videos
10
Voices
8
Webhooks
7
Workflows
4
Models
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Changes to Stream Speech
post
/v3/models/audio/tts/stream
Nov 3, 2026
7dfa5e59b4f5
Revision changes
info
endpoint added