Automated Voice Appointment Reminders with Google Calendar GPT ElevenLabs Gmail

n8n template #3194

Summary

This workflow automates voice reminders for upcoming appointments by generating a professional audio message and sending it to clients via email with the voice file attached. It integrates Google Calendar to track appointments, ElevenLabs to generate high-quality voice messages, and Gmail to deliver them efficiently. Who Needs Automated Voice Appointment Reminders? This automated voice appointment reminder system is ideal for businesses that rely on scheduled appointments. It helps reduce no-shows, improve client engagement, and streamline communication. Medical Offices & Clinics – Ensure patients receive timely appointment reminders. Real Estate Agencies – Keep potential buyers and renters

How to set it up

Open template #3194 on n8n.io and click Use for free, or copy the template JSON and paste it onto an empty canvas in n8n.
Create 3 credentials under Credentials → Add credential: Google Calendar, Gmail, OpenAI Chat Model. Then open each of those nodes and pick the credential.
Check the model in the OpenAI Chat Model node. The template may point at a model your account can't use; swap it for one you have access to.
Click Execute workflow and step through each node's output to confirm the data looks right.
Toggle the workflow to Active so its trigger runs on its own.

Hand off to your agent

Prompt

Help me set up the n8n workflow "Automated Voice Appointment Reminders with Google Calendar GPT ElevenLabs Gmail" (https://n8n.io/workflows/3194). It uses: HTTP Request, Google Calendar, Gmail, Code, Basic LLM Chain, OpenAI Chat Model, Structured Output Parser. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.

Paste into Claude Code and it will do the rest.

Apps and nodes

HTTP Request Google Calendar Gmail Code Basic LLM Chain OpenAI Chat Model Structured Output Parser

Questions

Yes. phil published it free on n8n.io as a verified creator, and it has 5,335 views. It runs on n8n Cloud or a self-hosted n8n instance.

Google Calendar, Gmail, OpenAI Chat Model. The other 4 nodes are built into n8n.

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