VAPI to GoHighLevel API Integration – Call Flow & Appointment Booking

Job ID: 39686055

Budget: $100 – $300 USD

Description:
We are looking for a skilled developer with experience in VAPI API and GoHighLevel API integration.

Project Overview:
We have a VAPI AI assistant already built. The call flow works as follows:

Caller Interaction

AI asks for address or tracking number.

To proceed, both must be provided.

This information must be captured and posted into GoHighLevel.

Sales Pitch & Appointment Scheduling

After the sales pitch, the AI schedules an appointment.

Required appointment fields: Name, Address, City, State, Zip, Phone Number.

Check GoHighLevel calendar availability before booking.

Post confirmed appointment to the calendar.

Create a new Opportunity in GoHighLevel.

Send a notification to our team/employers.

Workflow Requirements

Press 1 to speak to a live agent.

Press 9 to be removed from the list.

Current Status:

VAPI assistant is already built.

Direct GoHighLevel integration is not working as expected due to outdated documentation.

We’ve seen this done using Railway + n8n workflows (two workflows: one to capture initial caller info, another to capture appointment details).

What We Need:

Fix or rebuild the GoHighLevel integration.

Ensure proper data capture and posting for both the initial info and appointment booking stages.

Confirm call flow logic works end-to-end with VAPI, GHL, and appointment scheduling.

Preferred Experience:

VAPI API

GoHighLevel API

n8n or similar automation tools

Railway (deployment environment) or other

Experience with call workflows and data syncing

Please provide:

Relevant examples of similar integrations you’ve done.

Your approach to ensuring smooth and reliable data transfer.

Estimated timeline and cost.
Related categories: CRM Node.js JSON n8n