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HeyGen API enables creation of professional AI-generated video content with customizable avatars and voices.

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Overview

Create Account

Sign up for a HeyGen account

Get API Key

Generate your HeyGen API key

Copy into Anything

Add your API key to Anything’s secrets

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Account Creation

1

Visit HeyGen Website

Go to heygen.com and click “Sign Up”
2

Choose Signup Method

  • Sign up with email/password
  • Or continue with Google authentication

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Generate API Key

1

Access API Keys

  1. Go to your HeyGen dashboard
  2. Navigate to “API Settings”
Free tier has rate limits - monitor your usage
2

Create New Key

  1. Click “Generate API Key”
  2. Name your key (e.g., “Anything Integration”)
  3. Copy your API key
3

Get Avatar ID

  1. Go to “Avatar Library” in your dashboard
  2. Select the avatar you want to use as a template
  3. Copy the Avatar ID from the URL or settings
Be sure to get the Avatar ID and not the Avatar Group ID. Sometimes Avatars have different versions and so they are placed in a group.
4

Get Voice ID

  1. Go to “AI Voice Library” in your dashboard
  2. Select the voice you want to use as a template
  3. Copy the Voice ID from the URL or settings
The Voice ID is needed to generate videos with specific voices

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Add to Anything project

1

Add the integration

  1. In your Anything project, type / in the chat
  2. Select “HeyGen” from the menu
2

Add your API key

  1. Paste your API key into the “HEYGEN_API_KEY” field
Need a new key? Generate one in your HeyGen dashboard.
3

Start creating

You can now use prompts with the integration to create AI videos.Example prompts:
  • Generate a video presentation using /HeyGen
  • Create an AI spokesperson with /HeyGen
  • Build a video message system using /HeyGen
The API limits how often your app can fetch data. If your app loads the same data often, ask the agent to save it locally so it doesn’t re-fetch every time.
Example prompt for optimization:
When using /HeyGen, save the generated videos so my app doesn't have to fetch them again
Your HeyGen integration is ready! Use /HeyGen in chat to create AI videos.