Personal knowledgebase AI agent

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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 project creates a personal AI knowledge assistant that operates through Telegram. The assistant can extract summaries from YouTube videos or online articles, store them in Google...

Best for

Personal Productivity automation workflows
Multimodal AI automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.if, n8n-nodes-base.httprequest, @n8n/n8n-nodes-langchain.lmchatgooglegemini, n8n-nodes-base.markdown, @n8n/n8n-nodes-langchain.informationextractor, n8n-nodes-base.telegramtrigger, @n8n/n8n-nodes-langchain.agent, n8n-nodes-base.telegram

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Personal knowledgebase AI agent
Workflow name: Personal knowledgebase AI agent

How it works:

This project creates a personal AI knowledge assistant that operates through Telegram. The assistant can extract summaries from YouTube videos or online articles, store them in Google Sheets for later reference, and retrieve stored summaries when requested by the user.

Step-by-step:

Google Sheets Trigger: The workflow starts by detecting a new YouTube or article URL added to a dedicated sheet (Sheet2). It checks whether the link is already processed.
Link Type Detection: The system identifies if the URL is from YouTube or a standard article.
Data Retrieval:
- If it’s YouTube: Uses Apify to fetch the transcript.
- If it’s an article: Uses an HTTP Request node to fetch the webpage content.
AI Summarization: The transcript or article content is passed to Google Gemini for refined summarization.
Google Sheets Storage: The summary and title are appended to another sheet (Sheet1) for long-term storage, along with a “Stored” status update in Sheet2.
Telegram Assistant:
- A Telegram Trigger listens for messages from the user.
- The assistant searches stored summaries in Google Sheets.
- If a match is found, it returns the result to the user on Telegram; otherwise, it politely apologizes.

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 - If

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 2 - HTTP Request

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

Block 3 - Google Gemini Chat Model1

Type / Role: @n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices: Version 1

Block 4 - HTTP Request1

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

Block 5 - Markdown

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

Block 6 - Information Extractor

Type / Role: @n8n/n8n-nodes-langchain.informationExtractor - informationExtractor
Config choices: Version 1.2

Block 7 - Google Gemini Chat Model2

Type / Role: @n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices: Version 1

Block 8 - Information Extractor1

Type / Role: @n8n/n8n-nodes-langchain.informationExtractor - informationExtractor
Config choices: Version 1.2

Block 9 - Telegram Trigger

Type / Role: n8n-nodes-base.telegramTrigger - telegramTrigger
Config choices: Version 1.2

Block 10 - AI Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 2.1

Block 11 - Google Gemini Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices: Version 1

Block 12 - Send a text message

Type / Role: n8n-nodes-base.telegram - telegram
Config choices: Version 1.2

Block 13 - Get row(s) in sheet in Google Sheets

Type / Role: n8n-nodes-base.googleSheetsTool - googleSheetsTool
Config choices: Version 4.6

Block 14 - Append row in sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 15 - Append row in sheet1

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 16 - Append or update row in sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 17 - Google Sheets Trigger

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

Block 18 - Filter

Type / Role: n8n-nodes-base.filter - filter
Config choices: Version 2.2

Block 19 - Append or update row in sheet2

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.6

Block 20 - Sticky Note

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

Block 21 - Sticky Note1

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

Block 22 - Sticky Note2

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

Block 23 - Sticky Note3

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

Block 24 - Sticky Note4

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

3. Summary Table

Workflow	Personal knowledgebase AI agent
Complexity	advanced
Nodes	24
Categories	Personal Productivity, Multimodal AI
Author	Rakin Jakaria
Published	10 Aug 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/7215/7215.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 Personal Productivity workflows Multimodal AI workflows

Frequently asked questions

What does Personal knowledgebase AI agent do?

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 Personal Productivity, Multimodal AI use case.

Rakin Jakaria

11 workflows

Nodes

n8n-nodes-base.if n8n-nodes-base.httprequest @n8n/n8n-nodes-langchain.lmchatgooglegemini n8n-nodes-base.markdown @n8n/n8n-nodes-langchain.informationextractor n8n-nodes-base.telegramtrigger @n8n/n8n-nodes-langchain.agent n8n-nodes-base.telegram

Complexity

advanced

Published 10 Aug 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/7215/7215.json

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Personal knowledgebase AI agent

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 - If

Block 2 - HTTP Request

Block 3 - Google Gemini Chat Model1

Block 4 - HTTP Request1

Block 5 - Markdown

Block 6 - Information Extractor

Block 7 - Google Gemini Chat Model2

Block 8 - Information Extractor1

Block 9 - Telegram Trigger

Block 10 - AI Agent

Block 11 - Google Gemini Chat Model

Block 12 - Send a text message

Block 13 - Get row(s) in sheet in Google Sheets

Block 14 - Append row in sheet

Block 15 - Append row in sheet1

Block 16 - Append or update row in sheet

Block 17 - Google Sheets Trigger

Block 18 - Filter

Block 19 - Append or update row in sheet2

Block 20 - Sticky Note

Block 21 - Sticky Note1

Block 22 - Sticky Note2

Block 23 - Sticky Note3

Block 24 - Sticky Note4

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