Workflow Description: Automated YouTube Short Viral History (Blotato + GPT-4.1)

This workflow is a powerful, self-sustaining end-to-end content automation pipeline designed to feed your YouTube Shorts channel with consistent, high-quality, and highly engaging videos focused on "What if history..." scenarios.

This solution completely eliminates manual intervention across the creative, production, and publishing stages. It expertly links the creative power of a GPT-4o AI Agent with the video rendering capabilities of the Blotato API, all orchestrated by n8n.

How It Works

The automation runs through a five-step, scheduled process:

1. Trigger and Idea Generation: The Schedule Trigger starts the workflow (default is 10:00 AM daily). The AI Agent (GPT-4o) acts as a copywriter/researcher, automatically brainstorming a random "What if history..." topic, researching relevant facts, and formulating a viral, hook-driven 60-second video script, along with a title and caption.
2. Visual Production Request: The formatted script is sent to the Blotato API via the Create Video node. Blotato begins rendering the text-to-video short based on the pre-set style parameters (cinematic style, specific voice ID, and AI models).
3. Status Check and Wait: The Wait node pauses the workflow, and the Get Video node continually checks the Blotato system until the video rendering status is confirmed as done.
4. Media Upload: The completed video file is uploaded to the Blotato media library using an HTTP Request node, preparing it for publishing.
5. Automated Publishing: The final YT Post node (another HTTP Request to the Blotato API) automatically publishes the video to your linked YouTube channel, using the video URL and the AI-generated title and short caption.

Set Up Steps

To activate and personalize this powerful content pipeline in n8n, follow these steps:

1. OpenAI Credential: Ensure your OpenAI API key credential is created and connected to the Brainstorm Idea node (Language Model). The workflow uses GPT-4o by default.
2. Blotato API Key: Obtain your Blotato API Key.
   • Open the Prepare Video node and manually insert your Blotato API Key into the blotato_api_key field.
3. YouTube Account ID: Find the Account ID (or Channel ID) for the YouTube channel you want to post to.
   • Open the Prepare for Publish node and manually insert your YouTube Account ID into the youtube_id field.
4. Customize Video Style (Optional): If desired, adjust the visual aesthetic by modifying parameters in the Prepare Video node, such as:
   • voiceId: To change the video narrator.
   • style: To change the visual theme (e.g., from cinematic to documentary).
   • text_to_image_model and image_to_video_model: To change the underlying AI generation models.
5. Activate Workflow: Save the workflow and toggle the main switch to Active. The first video will be created and published on the next scheduled run.