Book and check phone appointments with Vapi or Retell 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 10 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.
- Set Business Variables (Edit Fields (Set)): sets 3 fields: businessName, calendarId, slotMinutes
- Prepare Request Data (Edit Fields (Set)): sets 5 fields: action, name, phone…
- Route by Request Type (Switch): routes items into 2 branches
- Verify Calendar Availability (Google Calendar): availability (calendar)
- Schedule in Google Calendar (Google Calendar): create (event)
- Prepare Fallback Response (Edit Fields (Set)): sets 1 field: result
- Prepare Availability Response (Edit Fields (Set)): sets 1 field: result
- Prepare Booking Confirmation (Edit Fields (Set)): sets 1 field: result
- Send Response to Agent (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 (5)
- Webhook
n8n-nodes-base.webhook - Edit Fields (Set)
n8n-nodes-base.set - Switch
n8n-nodes-base.switch - Google Calendar
n8n-nodes-base.googleCalendar - Respond to Webhook
n8n-nodes-base.respondToWebhook
From the author
Quick overview This workflow exposes a webhook for a Vapi or Retell voice agent to check Google Calendar availability or book an appointment, then returns a short, spoken-friendly reply for the agent to read to the caller. How it works 1. Receives a POST…