How to connect Caption AI and Vapi
Create a New Scenario to Connect Caption AI and Vapi
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 Vapi will be your first step. To do this, click "Choose an app," find Caption AI or Vapi, 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 Vapi Node
Next, click the plus (+) icon on the Caption AI node, select Vapi from the list of available apps, and choose the action you need from the list of nodes within Vapi.

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Authenticate Vapi
Now, click the Vapi node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your Vapi settings. Authentication allows you to use Vapi through Latenode.
Configure the Caption AI and Vapi 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 Vapi 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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Save and Activate the Scenario
After configuring Caption AI, Vapi, 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 Vapi integration works as expected. Depending on your setup, data should flow between Caption AI and Vapi (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 Vapi
Vapi + Caption AI + Google Calendar: When a Vapi call ends, Caption AI processes the transcript. Based on the call analysis, if the sentiment is positive, a follow-up call is automatically scheduled in Google Calendar.
Vapi + Caption AI + Salesforce: After a Vapi call concludes, Caption AI analyzes the call transcript. A summary of the call and the sentiment analysis are then logged into Salesforce, creating a new record with key discussion points.
Caption AI and Vapi 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 Vapi
Use Vapi in Latenode to validate and standardize address data. Ensure accurate deliveries and prevent errors by cleaning addresses directly within your workflows. Vapi integration inside Latenode makes data cleaning repeatable and scalable without extra coding. Automate address verification as part of lead gen, order processing, or CRM upkeep.
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FAQ Caption AI and Vapi
How can I connect my Caption AI account to Vapi using Latenode?
To connect your Caption AI account to Vapi 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 Vapi accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I automatically generate voiceovers for videos based on captions?
Yes, you can! Latenode lets you seamlessly connect Caption AI with Vapi, automating voiceover generation based on your video captions. This saves time and ensures consistent branding.
What types of tasks can I perform by integrating Caption AI with Vapi?
Integrating Caption AI with Vapi allows you to perform various tasks, including:
- Create automated voiceovers for social media videos using AI-generated captions.
- Generate audio descriptions for accessibility using Caption AI's text outputs.
- Sync translated captions to create multi-language voiceovers with Vapi.
- Automate voice prompts for interactive video experiences using caption triggers.
- Build workflows to generate voiceovers for training videos from transcriptions.
Can I trigger Vapi voiceovers based on specific keywords found in captions?
Yes, using Latenode’s advanced logic, you can trigger Vapi voiceovers based on keywords detected in your Caption AI-generated text.
Are there any limitations to the Caption AI and Vapi integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- The length of the generated voiceovers is limited by Vapi's API.
- Caption AI's accuracy may impact the quality of Vapi's voiceover if source audio is poor.
- Complex workflow logic requires some familiarity with Latenode's expression language.