Automate Outbound Voice Calls from Go High Level Opportunities with Vapi

This workflow triggers when a new opportunity is created in Go High Level (GHL), fetches the associated contact details, and initiates an outbound call using Vapi. The call is made by a Vapi assistant configured with the appropriate credentials.

🧾 Requirements

Go High Level (GHL) A Go High Level account GHL developer private app and credentials enabled in n8n Webhook URL** from n8n added to your GHL private app

Vapi A Vapi account with credit A connected phone number to make calls An assistant created and ready to make calls Your Vapi API key

🔗 Useful Links GHL Docs Vapi Docs n8n GHL Credentials Setup

🔄 Workflow Breakdown

1. Trigger: GHL Opportunity Created Triggered by a Webhook (POST) from Go High Level when a new opportunity is created. Webhook URL must be enabled in your GHL private app.

2. Get a GHL Contact Retrieves contact details from GHL CRM using the contact ID from the opportunity. Includes information such as phone number, name, and custom fields.

3. Wait 5 Minutes Introduces a short delay before making the call to avoid immediate outreach. Helps ensure data is synced and gives the system time for any follow-up automation.

4. Set Vapi Fields (Manual Step) Set the required fields for the Vapi API call: vapiPhoneNumberId – the number id making the call vapiAssistantId – the assistant who will handle the call vapiApi – your secure Vapi API key

5. Start Outbound Vapi Call Sends a POST request to https://api.vapi.ai/call Payload includes: Contact’s phone number Selected Vapi assistant Vapi phone number id to start the call

✅ Summary

This n8n automation connects your CRM (Go High Level) with voice automation (Vapi) to immediately respond to new opportunities. Once a lead is created, they will receive a personalized voice call from a Vapi AI assistant.

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