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heygen
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Schema
Generate
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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
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4
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2
Lipsync
5
Lipsync Batches
3
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12
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4
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7
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2
Video Agent
9
Video Analysis
2
Video Generations
2
Video Quality
4
Video Translate
16
Video Translation Batches
3
Videos
10
Voices
8
post
/v1/audio/text_to_speech
Generate speech audio from text
get
/v1/audio/voices
List voices for text-to-speech
post
/v3/voices/speech
Generate Speech
get
/v3/voices
List Voices
post
/v3/voices
Design a Voice
post
/v3/voices/clone
Clone a Voice
get
/v3/voices/{voice_id}
Get Voice
delete
/v3/voices/{voice_id}
Delete a Voice
Webhooks
7
Workflows
4
Voices
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Changes to Generate speech audio from text
post
/v1/audio/text_to_speech
Nov 3, 2026
7dfa5e59b4f5
Revision changes
info
endpoint added