Auto summarize YouTube videos to Japanese with GPT-4o-mini & post to Slack

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

How It Works This workflow automatically detects new YouTube uploads, retrieves their transcripts, summarizes them in Japanese using GPT 4 o mini, and posts the results to a selected Slack chann...

Best for

Content Creation automation workflows
AI Summarization automation workflows
intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.slack, n8n-nodes-base.rssfeedreadtrigger, n8n-nodes-base.httprequest, n8n-nodes-base.code, @n8n/n8n-nodes-langchain.openai, n8n-nodes-base.stickynote

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Supira Inc..

Original n8n.io source

1.1 Workflow description

Title: Auto summarize YouTube videos to Japanese with GPT-4o-mini & post to Slack
Workflow name: Auto summarize YouTube videos to Japanese with GPT-4o-mini & post to Slack

💡 How It Works

This workflow automatically detects new YouTube uploads, retrieves their transcripts, summarizes them in Japanese using GPT-4 o mini, and posts the results to a selected Slack channel. It’s ideal for teams who follow multiple creators, internal training playlists, or corporate webinars and want concise Japanese summaries in Slack without manual work.

Here’s the flow at a glance:

YouTube RSS Trigger — monitors a specific channel’s RSS feed.
HTTP Request via RapidAPI — fetches the video transcript (supports both English & Japanese).
Code Node — merges segmented transcript text into one clean string.
OpenAI (GPT-4o-mini) — generates a natural-sounding, 3-line Japanese summary.
Slack Message — posts the title, link, and generated summary to #youtube-summary.

⚙️ Requirements

n8n (v1.60 or later)
RapidAPI account + [youtube-transcript3 API key]
OpenAI API key (GPT-4o-mini recommended)
Slack workspace with OAuth connection

🧩 Setup Instructions

1.Replace YOUR_RAPIDAPI_KEY_HERE with your own RapidAPI key. 2.Add your OpenAI Credential under Credentials → OpenAI. 3.Set your target Slack channel (e.g., #youtube-summary). 4.Enter the YouTube channel ID in the RSS Trigger node. 5.Activate the workflow and test with a recent video.

🎛️ Customization Tips

Modify the OpenAI prompt to change summary length or tone.

Duplicate the RSS Trigger for multiple channels → merge before summarization.

Localize Slack messages using Japanese or English templates.

🚀 Use Case

Perfect for marketing teams, content curators, and knowledge managers who want to stay updated on YouTube content in Japanese without leaving Slack.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Send Summary to Slack (#youtube-summary)

Type / Role: n8n-nodes-base.slack - slack
Config choices: Version 2.3

Block 2 - YouTube RSS Trigger (Channel 1)

Type / Role: n8n-nodes-base.rssFeedReadTrigger - rssFeedReadTrigger
Config choices: Version 1

Block 3 - Get YouTube Transcript via RapidAPI

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 4 - Combine Transcript Text (Code)

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 5 - Generate Japanese Summary (OpenAI)

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.8

Block 6 - Sticky: HTTP Info

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 7 - Sticky: Code Info

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 8 - Sticky: OpenAI Info

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 9 - Sticky: Slack Info

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 10 - Sticky: HTTP Info1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Auto summarize YouTube videos to Japanese with GPT-4o-mini & post to Slack
Complexity	intermediate
Nodes	10
Categories	Content Creation, AI Summarization
Author	Supira Inc.
Published	17 Oct 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/9847/9847.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Content Creation workflows AI Summarization workflows

Frequently asked questions

What does Auto summarize YouTube videos to Japanese with GPT-4o-mini & post to Slack do?

How It Works This workflow automatically detects new YouTube uploads, retrieves their transcripts, summarizes them in Japanese using GPT 4 o mini, and posts the results to a selected Slack chann...

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Content Creation, AI Summarization use case.

Supira Inc.

5 workflows

Nodes

n8n-nodes-base.slack n8n-nodes-base.rssfeedreadtrigger n8n-nodes-base.httprequest n8n-nodes-base.code @n8n/n8n-nodes-langchain.openai n8n-nodes-base.stickynote

Complexity

intermediate

Published 17 Oct 2025

Likes 0

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Install path: /data/workflows/9847/9847.json

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Auto summarize YouTube videos to Japanese with GPT-4o-mini & post to Slack

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Send Summary to Slack (#youtube-summary)

Block 2 - YouTube RSS Trigger (Channel 1)

Block 3 - Get YouTube Transcript via RapidAPI

Block 4 - Combine Transcript Text (Code)

Block 5 - Generate Japanese Summary (OpenAI)

Block 6 - Sticky: HTTP Info

Block 7 - Sticky: Code Info

Block 8 - Sticky: OpenAI Info

Block 9 - Sticky: Slack Info

Block 10 - Sticky: HTTP Info1

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions