Last updated: July 19, 2025

âš¡ Overview

This plug-and-play n8n workflow automates the first step of appointment booking and boosts your show-up rate to over 80% using:

Built for founders, consultants, and agencies who want automated, high-conversion appointment handling.

🔧 What You’ll Need

Service Purpose Free Tier
n8n (self-host or cloud) Orchestrates the workflow ✅
Postgres Stores appointment records ✅
Google Workspace Calendar + email ✅
Twilio Sends SMS messages ✅
OpenAI API AI for text and formatting ✅ (limited)
ElevenLabs API Turns text into voice ✅ (limited)
Cloudinary Hosts MP3 audio ✅

🧠 What It Does

  1. Accepts booking form data via webhook
  2. Extracts and normalizes the form data
  3. Uses GPT to format phone numbers correctly
  4. Stores appointment in Postgres
  5. Creates a Google Calendar event with video link