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

Add the OpenAI GPT Assistants Node
Select the OpenAI GPT Assistants node from the app selection panel on the right.

OpenAI GPT Assistants
Configure the OpenAI GPT Assistants
Click on the OpenAI GPT Assistants node to configure it. You can modify the OpenAI GPT Assistants 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 OpenAI GPT Assistants node, select Vapi from the list of available apps, and choose the action you need from the list of nodes within Vapi.

OpenAI GPT Assistants
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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 OpenAI GPT Assistants 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 OpenAI GPT Assistants 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.

JavaScript
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AI Anthropic Claude 3
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Vapi
Trigger on Webhook
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OpenAI GPT Assistants
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Iterator
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Webhook response

Save and Activate the Scenario
After configuring OpenAI GPT Assistants, 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 OpenAI GPT Assistants and Vapi integration works as expected. Depending on your setup, data should flow between OpenAI GPT Assistants 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 OpenAI GPT Assistants and Vapi
Vapi + OpenAI GPT Assistants + Google Sheets: When a new call recording is available in Vapi, it is sent to OpenAI GPT Assistants for analysis. The extracted insights are then logged in a Google Sheet for review.
Vapi + OpenAI GPT Assistants + Slack: When a new call recording is available in Vapi, OpenAI GPT Assistants summarizes the call details. This summary is then posted to a Slack channel for quick team updates.
OpenAI GPT Assistants and Vapi integration alternatives
About OpenAI GPT Assistants
Use OpenAI GPT Assistants within Latenode to automate complex tasks like customer support or content creation. Configure Assistants with prompts and integrate them into broader workflows. Chain them with file parsing, webhooks, or database updates for scalable, automated solutions. Benefit from Latenode's no-code flexibility and affordable execution-based pricing.
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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 OpenAI GPT Assistants and Vapi
How can I connect my OpenAI GPT Assistants account to Vapi using Latenode?
To connect your OpenAI GPT Assistants account to Vapi on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select OpenAI GPT Assistants and click on "Connect".
- Authenticate your OpenAI GPT Assistants and Vapi accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I automate voice messages with GPT-personalized content?
Yes, you can! Latenode allows seamless integration of OpenAI GPT Assistants and Vapi, enabling automated, personalized voice messages using AI-generated content for improved customer engagement.
What types of tasks can I perform by integrating OpenAI GPT Assistants with Vapi?
Integrating OpenAI GPT Assistants with Vapi allows you to perform various tasks, including:
- Creating personalized voicemail greetings based on customer data.
- Generating dynamic voice responses for interactive voice response systems.
- Automating follow-up calls with AI-generated summaries.
- Transcribing voice calls and sending summaries to OpenAI GPT Assistants.
- Building a no-code AI-powered phone support system.
How does Latenode simplify OpenAI GPT Assistants automation?
Latenode provides a visual interface and flexible code blocks, allowing you to build complex OpenAI GPT Assistants workflows without coding.
Are there any limitations to the OpenAI GPT Assistants and Vapi integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Vapi call costs are separate and depend on their pricing.
- OpenAI GPT Assistants rate limits may affect high-volume workflows.
- Complex logic may require JavaScript knowledge.