Reddit brand engagement with AI comment generation and Slack notifications

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Important notice

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

1. Workflow Overview

What This Does Automatically finds relevant Reddit posts where your brand can add value, generates helpful AI comments, and sends the best opportunities to your Slack channel for review. Setup Requ...

Best for

Lead Nurturing automation workflows
AI Chatbot automation workflows
intermediate n8n builders looking for reusable templates

Tools used

n8n-nodes-base.scheduletrigger, @n8n/n8n-nodes-langchain.lmchatopenai, n8n-nodes-base.filter, @n8n/n8n-nodes-langchain.outputparserstructured, @n8n/n8n-nodes-langchain.agent, n8n-nodes-base.slack, n8n-nodes-base.reddit, n8n-nodes-base.merge

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Reddit brand engagement with AI comment generation and Slack notifications
Workflow name: Reddit brand engagement with AI comment generation and Slack notifications

What This Does

Automatically finds relevant Reddit posts where your brand can add value, generates helpful AI comments, and sends the best opportunities to your Slack channel for review.

Setup Requirements

Reddit API credentials
OpenAI API key
Slack webhook URL

Quick Setup

Reddit API

Create app at reddit.com/prefs/apps (select "script" type)
Add client ID and secret to n8n credentials

Configure Subreddits

Edit the workflow to monitor subreddits relevant to your business:

entrepreneur, startups, smallbusiness, [your_niche]

AI Prompt Setup

Customize the OpenAI node with your brand context:

You're helping in [subreddit] discussions. When relevant, mention how [your_product] solves similar problems. Be helpful first, promotional second.

Slack Integration

Add your webhook URL to get notifications with:

Post title and link
AI-generated comment
Engagement score (1-10)

Key Features

Smart Filtering: AI evaluates if a post is worth engaging with
Brand-Aware Comments: Generated responses stay on-brand and helpful
Team Review: All opportunities go to Slack before posting
Multiple Subreddits: Monitor several communities simultaneously

Customization Tips

Adjust AI Scoring - Modify what makes a "good" opportunity:

Post engagement level
Relevance to your product
Tone of the discussion

Comment Templates - Set different styles for different subreddits:

Technical advice for developer communities
Business insights for entrepreneur groups
User experience for product discussions

Best Practices

Start with 2-3 subreddits to test effectiveness
Review and approve comments in Slack before posting
Follow Reddit's 90/10 rule (90% helpful content, 10% self-promotion)
Adjust the AI prompt based on what works in your communities

Why Use This

Saves hours of manual Reddit browsing
Maintains consistent brand voice
Never miss relevant conversations
Team can review before engaging publicly

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 - Schedule Trigger

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

Block 2 - OpenAI Chat Model

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

Block 3 - Should Reply?

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

Block 4 - Structured Output Parser

Type / Role: @n8n/n8n-nodes-langchain.outputParserStructured - outputParserStructured
Config choices: Version 1.3

Block 5 - Comment AI Agent

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

Block 6 - Send a message

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

Block 7 - AI_Agents

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

Block 8 - Automate

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

Block 9 - salesdevelopment

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

Block 10 - SaaSSales

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

Block 11 - Merge

Type / Role: n8n-nodes-base.merge - merge
Config choices: Version 3.2

Block 12 - AskMarketing

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

Block 13 - Filter last 24 hour posts

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

3. Summary Table

Workflow	Reddit brand engagement with AI comment generation and Slack notifications
Complexity	intermediate
Nodes	13
Categories	Lead Nurturing, AI Chatbot
Author	Jitesh Dugar
Published	10 Sept 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/8458/8458.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 Lead Nurturing workflows AI Chatbot workflows

Frequently asked questions

What does Reddit brand engagement with AI comment generation and Slack notifications 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 Lead Nurturing, AI Chatbot use case.

Jitesh Dugar

133 workflows

Nodes

n8n-nodes-base.scheduletrigger @n8n/n8n-nodes-langchain.lmchatopenai n8n-nodes-base.filter @n8n/n8n-nodes-langchain.outputparserstructured @n8n/n8n-nodes-langchain.agent n8n-nodes-base.slack n8n-nodes-base.reddit n8n-nodes-base.merge

Complexity

intermediate

Published 10 Sept 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/8458/8458.json

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Reddit brand engagement with AI comment generation and Slack notifications

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

What This Does

Setup Requirements

Quick Setup

Reddit API

Configure Subreddits

AI Prompt Setup

Slack Integration

Key Features

Customization Tips

Best Practices

Why Use This

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Schedule Trigger

Block 2 - OpenAI Chat Model

Block 3 - Should Reply?

Block 4 - Structured Output Parser

Block 5 - Comment AI Agent

Block 6 - Send a message

Block 7 - AI_Agents

Block 8 - Automate

Block 9 - salesdevelopment

Block 10 - SaaSSales

Block 11 - Merge

Block 12 - AskMarketing

Block 13 - Filter last 24 hour posts

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