n8n Workflow: Form Prompt → MP4 via Emaki Seedance 2.5

Turn a text prompt into an MP4 using emaki Seedance 2.5—inside n8n

This n8n workflow lets you paste a prompt into a form and automatically generate a finished MP4 video with emaki.ai’s Seedance 2.5. You choose the model, duration, and aspect ratio, optionally supply a first-frame image URL, and the workflow waits, checks the job status, and downloads the resulting clip.

What this workflow does

• Video request form: Collects your prompt, selects a model (seedance_2_5, seedance_2, seedance_2_fast, or seedance_2_mini), sets duration and aspect ratio, and accepts an optional first-frame image URL.
• Build request: Converts the form inputs into an emaki request payload at 480p.
• Start video: Sends the request to https://emaki.ai/api/video/ai using your API key and receives a video id.
• Error handling: If the request is refused, the workflow routes the error to an Explain refusal step (e.g., bad key, no credits, a video already running, or a blocked prompt).
• Wait + status polling: Waits ~30 seconds, checks /api/video/status, then:
  • completed: downloads the MP4
  • failed: reports the failure code
  • otherwise: loops back to continue checking

Use cases

• Build a simple prompt-to-video generator for your team using n8n forms.
• Generate short marketing or concept clips on demand, with consistent settings (model, aspect ratio, length).
• Automate video generation pipelines in a SaaS or internal tooling workflow, including clear failure responses.
• Turn a still image into a short clip by providing a public HTTPS image URL.

Technical details

• Integration: emaki.ai (Seedance 2.5 via API)
• API endpoints: /api/video/ai and /api/video/status
• Auth: n8n Header Auth credential named Authorization with value Bearer sk-...
• n8n nodes/logic: if, set, code, wait, switch, plus supporting notes (sticky notes)

Get started: create an emaki API key at emaki.ai/settings/apikeys, configure the n8n credential, activate the workflow, then use the form URL to generate and download your MP4.