How to connect Formstack and Vapi
Create a New Scenario to Connect Formstack 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 Formstack, triggered by another scenario, or executed manually (for testing purposes). In most cases, Formstack or Vapi will be your first step. To do this, click "Choose an app," find Formstack or Vapi, and select the appropriate trigger to start the scenario.

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


Formstack

Configure the Formstack
Click on the Formstack node to configure it. You can modify the Formstack 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 Formstack 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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Vapi


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 Formstack 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 Formstack 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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AI Anthropic Claude 3
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Vapi
Trigger on Webhook
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Formstack
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Iterator
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Webhook response


Save and Activate the Scenario
After configuring Formstack, 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 Formstack and Vapi integration works as expected. Depending on your setup, data should flow between Formstack 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 Formstack and Vapi
Formstack + Vapi + Slack: When a new form submission is received in Formstack, Vapi analyzes the text for sentiment. If the sentiment is negative, a message is posted to a specified Slack channel.
Vapi + Formstack + Google Sheets: When a phone call is transcribed by Vapi, the call details are logged into Formstack using form fields. Subsequently, the Formstack submission data is added as a new row in Google Sheets.
Formstack and Vapi integration alternatives

About Formstack
Use Formstack with Latenode to capture data via forms and automatically trigger workflows. Update databases, send notifications, or create documents based on submissions. Latenode adds logic, routing, and integrations to scale Formstack beyond simple data collection with visual tools and custom 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 Formstack and Vapi
How can I connect my Formstack account to Vapi using Latenode?
To connect your Formstack account to Vapi on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select Formstack and click on "Connect".
- Authenticate your Formstack and Vapi accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I automatically trigger Vapi calls from new Formstack submissions?
Yes, you can! Latenode allows you to instantly trigger Vapi calls from Formstack form submissions, using no-code or custom JavaScript to manage complex logic and data transformations.
What types of tasks can I perform by integrating Formstack with Vapi?
Integrating Formstack with Vapi allows you to perform various tasks, including:
- Automatically initiating phone calls from new Formstack form submissions.
- Sending personalized SMS messages based on form data received.
- Updating contact information in Vapi from Formstack submissions.
- Creating new Vapi contacts whenever someone fills out your form.
- Using AI to analyze form responses and personalize Vapi outreach.
How can I handle conditional logic with Formstack data in Latenode?
Latenode's visual editor allows you to create complex conditional workflows based on Formstack data using 'if/else' blocks or custom JavaScript.
Are there any limitations to the Formstack and Vapi integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Large data transfers may impact performance.
- Complex workflow logic requires careful planning.
- Rate limits from Formstack and Vapi may apply.