Seedance Text-to-Video Webhook Workflow (n8n) | HTTP Request

Generate Seedance 2 text-to-video via an n8n webhook (HTTP request)

Turn a simple POST request into a complete Seedance 2 text-to-video run. This n8n workflow exposes a webhook at /seedance-video, submits your prompt to Seedance, polls task status until it completes, and returns the final task payload (including the video result) to your caller.

What this workflow does

• Receives a webhook request containing a required prompt plus optional aspect_ratio, duration, and resolution.
• Builds a Seedance generation payload, applies defaults, and creates an idempotency key per execution.
• Creates a Seedance 2 text-to-video task by calling the Seedance API.
• Waits and polls: pauses for 20 seconds, then checks the task status via the tasks endpoint.
• Repeats until completion (status becomes completed) or failure (status becomes failed).
• Returns results to the webhook caller: on success, responds with the completed task JSON; on failure, returns the failure payload with a 502 status code.

Use cases

• Build a lightweight text-to-video generation endpoint for your SaaS backend using n8n webhooks.
• Automate video creation from user prompts submitted by a web or mobile app.
• Integrate Seedance 2 generation into existing orchestration flows without writing custom polling code.

Technical details

• Webhook entry (HTTP): configure your source app to POST JSON to /seedance-video.
• Seedance authentication: create an n8n HTTP Header Auth credential with Authorization: Bearer YOUR_API_KEY, and use it in both Seedance HTTP requests.
• Nodes used: webhook, set, if, wait, sticky note, and HTTP Request.

Tip: Activate the workflow and use the production webhook URL in your application.