Use case

Newsletter Banner Generator

POST your newsletter subject line and get back a sized header image for every major ESP. One webhook call, no Canva tab.

Who this is for

Newsletter operators, email marketers

The problem

Every issue needs a header image that matches the topic. Switching to a design tool, exporting at three sizes, and dragging files into your ESP adds 30 minutes per send.

The flow

POST the subject line and a one-line visual direction to the published webhook. The Gemini Text node writes a visual concept prompt from the subject. The Image node generates the header artwork. The Image Resize node crops it to the dimensions your ESP expects (600px wide for most, 1200px for Retina). Respond to Webhook returns the sized image ready to drop into your template.

The outcome

An issue-specific banner image sized for every major ESP, returned in one webhook response. No design tool in the loop.

Nodes used

HTTP Trigger Text (Gemini)ImageImage ResizeRespond to Webhook

More use cases

All use cases

Product Video AdsUpload a product photo, get back a video ad with generated copy and voiceover. One webhook call replaces your entire creative production queue.Narrated Explainer VideosGenerate a script, a hero scene visual, an ≤8-second clip, and full-length narration from one topic prompt on the canvas.Social Media Content PipelinePOST a creative brief via webhook, get back a generated hero image for the campaign. Multi-platform sizing is on the roadmap.

Generate your first video ad in 3 minutes.

Free to start. No credit card. Upload a product photo, connect your AI models, click Run.