Create a WhatsApp voice assistant with Twilio, VAPI, Google Calendar & OpenAI
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 AI workflow has 12 nodes and runs when an MCP client calls one of its tools (plus 3 other triggers). Along the way it connects Supabase Vector Store, Embeddings OpenAI, Google Calendar and Gmail.
How it runs
Trigger: When an MCP client calls one of its tools (plus 3 other triggers).
- 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 (7)
- Supabase Vector Store
@n8n/n8n-nodes-langchain.vectorStoreSupabase - Embeddings OpenAI
@n8n/n8n-nodes-langchain.embeddingsOpenAi - Google Calendar Tool
n8n-nodes-base.googleCalendarTool - Gmail Tool
n8n-nodes-base.gmailTool - MCP Server Trigger
@n8n/n8n-nodes-langchain.mcpTrigger - Webhook
n8n-nodes-base.webhook - Respond to Webhook
n8n-nodes-base.respondToWebhook
From the author
WhatsApp Voice Agent with Twilio, VAPI, Google Calendar, Gmail & Supabase This workflow turns WhatsApp voice messages into an AI assistant using Twilio, VAPI, and modular MCP servers. It handles scheduling, email, and knowledge queries all by voice. --- 🔎…