Discover business ideas from HackerNews posts with GPT-4.1 analysis and Google Sheets

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Important notice

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

1. Workflow Overview

What it is This n8n workflow monitors top Hacker News posts (in the Front Page) and identifies business related pain points using AI. How It Works It filters posts by engagement (comments 80, ...

Best for

Market Research automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.manualtrigger, n8n-nodes-base.googlesheets, n8n-nodes-base.if, n8n-nodes-base.set, n8n-nodes-base.stickynote, n8n-nodes-base.hackernews, n8n-nodes-base.merge, @n8n/n8n-nodes-langchain.agent

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Discover business ideas from HackerNews posts with GPT-4.1 analysis and Google Sheets
Workflow name: Discover business ideas from HackerNews posts with GPT-4.1 analysis and Google Sheets

What it is

This n8n workflow monitors top Hacker News posts (in the Front Page) and identifies business-related pain points using AI.

How It Works

It filters posts by engagement (comments > 80, points > 200, and recent date), extracts key metadata, fetches the article content, and uses a GPT-4.1-based agent to detect and summarize pain points.

Results are appended to a Google Sheet for further analysis.

Setup

To run this workflow, you need to set up credentials for:

OpenRouter: Uses an API Key. Generate this key directly from your OpenRouter account settings. (YT Tutorial : https://youtu.be/Cq5Y3zpEhlc)
Google Sheets: Uses OAuth 2.0. Requires setup in Google Cloud Console (enable Sheets API, create OAuth Client ID with n8n redirect URI) to get a Client ID & Secret.

Ensure these credentials are created and selected in the respective n8n nodes (Get Posts, OpenRouter Chat Model nodes, Output The Results).

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 - When clicking ‘Test workflow’

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

Block 2 - Output The Results

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 3 - Filter Posts By Features

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

Block 4 - Select Key Fields

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 5 - Sticky Note

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

Block 6 - Sticky Note3

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

Block 7 - Hacker News

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

Block 8 - Merge Input

Type / Role: n8n-nodes-base.merge - merge
Config choices: Version 3

Block 9 - Sticky Note2

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

Block 10 - AI Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.9

Block 11 - OpenRouter Chat Model

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

Block 12 - HTTP Request

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

Block 13 - Loop Over Items

Type / Role: n8n-nodes-base.splitInBatches - splitInBatches
Config choices: Version 3

Block 14 - If Topic1

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

Block 15 - Structured Output Parser

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

Block 16 - Assign Sheet Headers

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

3. Summary Table

Workflow	Discover business ideas from HackerNews posts with GPT-4.1 analysis and Google Sheets
Complexity	advanced
Nodes	16
Categories	Market Research, AI Summarization
Author	Ari Nakos
Published	05 May 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/3877/3877.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 Market Research workflows AI Summarization workflows

Frequently asked questions

What does Discover business ideas from HackerNews posts with GPT-4.1 analysis and Google Sheets do?

What it is This n8n workflow monitors top Hacker News posts (in the Front Page) and identifies business related pain points using AI. How It Works It filters posts by engagement (comments 80, ...

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 Market Research, AI Summarization use case.

Ari Nakos

10 workflows

Nodes

n8n-nodes-base.manualtrigger n8n-nodes-base.googlesheets n8n-nodes-base.if n8n-nodes-base.set n8n-nodes-base.stickynote n8n-nodes-base.hackernews n8n-nodes-base.merge @n8n/n8n-nodes-langchain.agent

Complexity

advanced

Published 05 May 2025

Likes 0

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Install path: /data/workflows/3877/3877.json

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Discover business ideas from HackerNews posts with GPT-4.1 analysis and Google Sheets

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

What it is

How It Works

Setup

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - When clicking ‘Test workflow’

Block 2 - Output The Results

Block 3 - Filter Posts By Features

Block 4 - Select Key Fields

Block 5 - Sticky Note

Block 6 - Sticky Note3

Block 7 - Hacker News

Block 8 - Merge Input

Block 9 - Sticky Note2

Block 10 - AI Agent

Block 11 - OpenRouter Chat Model

Block 12 - HTTP Request

Block 13 - Loop Over Items

Block 14 - If Topic1

Block 15 - Structured Output Parser

Block 16 - Assign Sheet Headers

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