Create script-to-video avatar videos with GPT-4.1-mini, HeyGen, Google Drive, Gmail and Slack
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 21 nodes and runs when an HTTP GET request hits its webhook URL (plus 1 other trigger). Along the way it connects OpenAI Chat Model, Google Drive, Slack and Gmail.
How it runs
Trigger: When an HTTP GET request hits its webhook URL (plus 1 other trigger).
- Parse Incoming Script Payload (Code): runs custom JavaScript code
- Slack: uses Slack
- Rewrite & Structure Video Script (AI Agent): runs an AI agent, with model: LLM Engine for Script Rewriting; memory: Apply Script Writing Memory Context; output parser: Validate Structured Script Output
- Submit Video Generation Request to HeyGen (HTTP Request): calls an HTTP API
- Wait: pauses before continuing
- Check HeyGen Video Status (HTTP Request): calls an HTTP API
- Wait: pauses before continuing
- Evaluate Video Completion Status (If): checks a condition and branches into true / false
- Download Generated HeyGen Video (HTTP Request): calls an HTTP API
- Upload Generated Video to Google Drive (Google Drive): uses Google Drive
…plus 3 more steps. See the full node list below.
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 (13)
- HTTP Request
n8n-nodes-base.httpRequest - Webhook
n8n-nodes-base.webhook - Code
n8n-nodes-base.code - AI Agent
@n8n/n8n-nodes-langchain.agent - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Structured Output Parser
@n8n/n8n-nodes-langchain.outputParserStructured - Wait
n8n-nodes-base.wait - If
n8n-nodes-base.if - Google Drive
n8n-nodes-base.googleDrive - Slack
n8n-nodes-base.slack - Gmail
n8n-nodes-base.gmail - Error Trigger
n8n-nodes-base.errorTrigger
From the author
📘 Description This workflow automates the entire process of taking a raw user-submitted script, rewriting it into a polished HeyGen-ready narration, generating a full avatar video, handling all processing checks, retrieving the final MP4, uploading it to…