How to Make UGC Video Ads in n8n with the Google Flow API

Description and use

The n8n template generates UGC videos using useapi.net Google Flow API, delivering a consistent presenter, voice, and product shots for 140 Flow credits.

Problem

Creating consistent AI‑generated UGC video ads is difficult because the presenter’s face, voice, and product placement drift between clips.

Outcome

The template produces a 32‑second, 1080p UGC ad in 140 Flow credits, with a consistent presenter, voice, and product shots.

Workflow

• Import ugc‑ad‑factory.json into n8n
• Create Header Auth credential with API token
• Publish workflow and open Start form URL
• Fill Setup page (Google email, presenter source, product count, intro/closing, format, takes)
• Provide Details (presenter description, voice, scene, clip lines)
• Upload presenter photo or use saved character ID
• Select or re‑roll presenter candidates
• Generate and choose second‑angle views
• Select or re‑roll Google preset voices
• Upload or choose product images and reference sheets
• Choose scene candidate and view credit estimate
• Review and select best takes or re‑roll rejected clips
• Choose resolution (1080p/720p)
• Generate final video

Evidence

A free n8n template makes AI UGC video ads through the useapi.net Google Flow API: one form, up to five products, a consistent Omni 1.1 Flash presenter and voice, and 140 Flow credits for the default ad with four takes of each clip.

Source

The workflow uses only core n8n nodes, with no community nodes. It was tested on self-hosted n8n 2.41.

Source

One $15/month subscription covers every useapi.net API, with no per-call surcharge.

Source