The callback pattern
The verified Rendofy node is the preferred setup: add it after the node that prepares your JSON, select Resource: Render and Operation: Create, then provide a public callback URL. For a manual HTTP setup, create an HTTP Request node that posts to Rendofy and set callback_url to the active execution's Wait-node resume URL. The request returns a job ID. The Wait node resumes that same n8n execution when Rendofy posts the completed render.
callback_url: {{ $execution.resumeUrl }}
POST https://api.rendofy.com/webhook/render-intake
api_key: {{ $env.RENDOFY_API_KEY }}Handle the resumed body correctly
On n8n 2.32.0, the Wait node resume data is exposed as a webhook envelope. The completed Rendofy payload is in $json.body, not directly at the root. Normalize that object before reading video_url, then give a download node the normalized URL.
Keep the key out of workflow JSON
Use an n8n environment variable or credential. The rendered result is an MP4 delivered by callback; it is not an instruction to enable a publishing destination. Add any downstream publisher only when you have explicitly configured and authorized it.