Automated voice appointment booking with Vapi AI and Google Calendar
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This workflow has 9 nodes and runs when an HTTP POST request hits its webhook URL. Along the way it connects Google Calendar.
How it runs
Trigger: When an HTTP POST request hits its webhook URL.
- 1. CONFIGURATION (EDIT ME) (Edit Fields (Set)): sets 7 fields: timeZone, workdayStartHour, workdayEndHour…
- Route by Tool Name (Switch): routes items into 2 branches
- 2. Get Calendar Events (EDIT ME) (Google Calendar): get many
- 3. Book Appointment in Calendar (EDIT ME) (Google Calendar): uses Google Calendar
- Calculate Potential Slots (do not change) (Code): runs custom JavaScript code
- Booking Confirmation (do not change) (Respond to Webhook): sends the response back to the webhook caller
- Filter for Available Slots (do not change) (Code): runs custom JavaScript code
- Respond with Available Times (do not change) (Respond to Webhook): sends the response back to the webhook caller
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (6)
- Edit Fields (Set)
n8n-nodes-base.set - Webhook
n8n-nodes-base.webhook - Switch
n8n-nodes-base.switch - Code
n8n-nodes-base.code - Respond to Webhook
n8n-nodes-base.respondToWebhook - Google Calendar
n8n-nodes-base.googleCalendar
From the author
What this template does Connect a Vapi AI voice agent to Google Calendar to capture contact details and auto-book appointments. The agent asks for name, address, service type, and a preferred time. The workflow checks availability and either proposes times or…