How to connect Caption AI and HeyGen
Create a New Scenario to Connect Caption AI and HeyGen
In the workspace, click the “Create New Scenario” button.

Add the First Step
Add the first node – a trigger that will initiate the scenario when it receives the required event. Triggers can be scheduled, called by a Caption AI, triggered by another scenario, or executed manually (for testing purposes). In most cases, Caption AI or HeyGen will be your first step. To do this, click "Choose an app," find Caption AI or HeyGen, and select the appropriate trigger to start the scenario.

Add the Caption AI Node
Select the Caption AI node from the app selection panel on the right.

Caption AI
Configure the Caption AI
Click on the Caption AI node to configure it. You can modify the Caption AI URL and choose between DEV and PROD versions. You can also copy it for use in further automations.
Add the HeyGen Node
Next, click the plus (+) icon on the Caption AI node, select HeyGen from the list of available apps, and choose the action you need from the list of nodes within HeyGen.

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Authenticate HeyGen
Now, click the HeyGen node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your HeyGen settings. Authentication allows you to use HeyGen through Latenode.
Configure the Caption AI and HeyGen Nodes
Next, configure the nodes by filling in the required parameters according to your logic. Fields marked with a red asterisk (*) are mandatory.
Set Up the Caption AI and HeyGen Integration
Use various Latenode nodes to transform data and enhance your integration:
- Branching: Create multiple branches within the scenario to handle complex logic.
- Merging: Combine different node branches into one, passing data through it.
- Plug n Play Nodes: Use nodes that don’t require account credentials.
- Ask AI: Use the GPT-powered option to add AI capabilities to any node.
- Wait: Set waiting times, either for intervals or until specific dates.
- Sub-scenarios (Nodules): Create sub-scenarios that are encapsulated in a single node.
- Iteration: Process arrays of data when needed.
- Code: Write custom code or ask our AI assistant to do it for you.

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Trigger on Webhook
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Webhook response

Save and Activate the Scenario
After configuring Caption AI, HeyGen, and any additional nodes, don’t forget to save the scenario and click "Deploy." Activating the scenario ensures it will run automatically whenever the trigger node receives input or a condition is met. By default, all newly created scenarios are deactivated.
Test the Scenario
Run the scenario by clicking “Run once” and triggering an event to check if the Caption AI and HeyGen integration works as expected. Depending on your setup, data should flow between Caption AI and HeyGen (or vice versa). Easily troubleshoot the scenario by reviewing the execution history to identify and fix any issues.
Most powerful ways to connect Caption AI and HeyGen
YouTube + Caption AI + HeyGen: When a new video is uploaded to YouTube, automatically generate captions using Caption AI, then create an AI avatar video with HeyGen featuring the captioned content for promotion.
HeyGen + Caption AI + LinkedIn: Create a personalized video with HeyGen, automatically generate captions using Caption AI, and then share the video on LinkedIn as a post to boost engagement.
Caption AI and HeyGen integration alternatives
About Caption AI
Caption AI in Latenode streamlines content creation. Generate captions from images or videos directly within your workflows. Automate social media posting, ad campaigns, or content archiving. Latenode's visual editor and flexible integrations reduce manual work and allow for personalized, automated caption generation at scale, without code.
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About HeyGen
Use HeyGen in Latenode to automate personalized video creation. Generate videos from data (CRM leads, spreadsheets) and auto-post to social media or send via email. Create scalable workflows without code, use JS for fine-tuning, and track versions to manage video assets efficiently.
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See how Latenode works
FAQ Caption AI and HeyGen
How can I connect my Caption AI account to HeyGen using Latenode?
To connect your Caption AI account to HeyGen on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select Caption AI and click on "Connect".
- Authenticate your Caption AI and HeyGen accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I automate video creation from transcribed audio?
Yes! Latenode enables powerful workflows using Caption AI transcripts to drive HeyGen avatars, automating video creation. Benefit from advanced logic, scripting, and AI blocks within Latenode for total control.
What types of tasks can I perform by integrating Caption AI with HeyGen?
Integrating Caption AI with HeyGen allows you to perform various tasks, including:
- Automatically generate videos from audio files using AI avatars.
- Sync transcriptions to virtual avatars for enhanced accessibility.
- Create localized video content by translating captions into different languages.
- Generate short video clips from longer transcriptions for social media.
- Add dynamic subtitles to existing videos to improve viewer engagement.
Can I use JavaScript with Caption AI to enhance processing?
Yes! Latenode’s JavaScript support lets you manipulate Caption AI data, enabling custom parsing, formatting, and advanced logic beyond simple connections.
Are there any limitations to the Caption AI and HeyGen integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Large video file processing may consume significant workflow execution time.
- Complex avatar customizations in HeyGen may require advanced plan access.
- Accuracy of transcriptions depends on audio quality uploaded to Caption AI.