Extend videos with audio using Fal, OpenAI, and Upload-Post for TikTok
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 11 nodes and runs when someone submits an n8n form (“Extend video with audio”) (plus 1 other trigger). Along the way it connects OpenAI. It also calls queue.fal.run and api.upload-post.com over HTTP.
How it runs
Trigger: When someone submits an n8n form (“Extend video with audio”) (plus 1 other trigger).
- Set vars (Edit Fields (Set)): sets 2 fields: video_url, prompt
- Extend Video (HTTP Request): calls queue.fal.run (POST)
- Wait: waits 60 seconds
- Get status (HTTP Request): calls an HTTP API
- Completed? (If): checks a condition and branches into true / false
- Get Url Video (HTTP Request): calls an HTTP API
- Generate title (OpenAI): uses OpenAI
- Get File Video (HTTP Request): calls an HTTP API
- HTTP Request: calls api.upload-post.com (POST)
Services it uses
HTTP calls to: queue.fal.run, api.upload-post.com
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)
- HTTP Request
n8n-nodes-base.httpRequest - Wait
n8n-nodes-base.wait - If
n8n-nodes-base.if - OpenAI
@n8n/n8n-nodes-langchain.openAi - Webhook
n8n-nodes-base.webhook - n8n Form Trigger
n8n-nodes-base.formTrigger - Edit Fields (Set)
n8n-nodes-base.set
From the author
Quick overview This workflow accepts a video URL and prompt, uses Fal.ai (ltx-2.3-quality) to extend the video forward with generated audio, generates an SEO-friendly title with OpenAI, downloads the finished video, and uploads it to TikTok via the…