Automate Reddit Monitoring with GPT-5-Mini, Notion, and Gmail

Instantly Track Reddit Discussions and Generate Insights

Manually monitoring Reddit for relevant discussions can be overwhelming. This automation does all the heavy lifting by automatically searching for keywords across selected subreddits or the entire Reddit, analyzing each post with GPT-5-Mini, and saving structured insights in your Notion database. Optionally, receive daily email notifications summarizing new discussions without lifting a finger.

Key Features

• Daily Automated Reddit Monitoring
  Checks Reddit once a day for new posts matching your keywords in selected subreddits or across all of Reddit.

• AI-Powered Analysis with Custom Prompts
  Uses GPT-5-Mini to:

  • Assign a relevance score to each post based on your defined priorities.
  • Generate a suggested comment tailored to your audience or engagement strategy.
  • Allow custom prompts so you can tweak AI behavior for lead generation, competitor monitoring, or brand mentions.

• Notion Integration
  Saves all posts, relevance scores, and AI-generated comments directly into your Notion database for easy tracking and collaboration.
  

• Optional Email Alerts
  Sends a clean, HTML-formatted email summarizing new discussions and insights.
  

• No API Keys Required for Reddit
  Works with the official Reddit API without requiring users to create credentials.

• Customizable Inputs
  Users define keywords, subreddits, relevance criteria, custom prompts, and notification preferences with minimal setup.

Setup Instructions

1. Configure Keywords and Subreddits

1. Open the Define Keywords and Subreddits node.
2. Enter your target keywords and choose specific subreddits, or enable search across all Reddit.
3. Map the inputs to the workflow’s search nodes.

2. Connect OpenAI (GPT-5-Mini)

1. Create an OpenAI account and obtain your API key.
2. Open the AI Analysis Node in the workflow.
3. Paste your OpenAI API key into the credentials field.
4. Customize your prompts to define how GPT-5-Mini:
   • Scores relevance based on your specific criteria.
   • Generates suggested comments tailored to your objectives (e.g., lead generation, brand engagement, competitor analysis).
5. Test the node to ensure relevance scoring and suggested comments are generated correctly.

3. Connect Notion

1. Duplicate the provided Notion template into your workspace.
2. Obtain your Notion integration secret from Notion settings.
3. Paste the secret into the Add Each Post to Notion Database node.
4. Test the connection to ensure posts are saved correctly.

4. Optional Email Notifications

1. Setup Google API credentials in the Google Cloud Console.
2. Authenticate Gmail in the workflow.
3. Map the recipient email and customize the notification format.
4. Test sending an email to confirm delivery.

5. Configure Workflow Trigger

1. Import the workflow into n8n.
2. Ensure the daily trigger is enabled.
3. Optionally adjust schedule or notification settings.

How It Works

1. Daily Trigger: Starts the workflow once per day.
2. Reddit Search: Queries new posts based on user-defined keywords.
3. AI Analysis: GPT-5-Mini evaluates relevance score and generates suggested comments based on your custom prompts.
4. Save & Notify: Posts are saved to Notion and optionally summarized via email.

Example Use Cases

• Generate leads by identifying potential prospects discussing your industry or product.
• Monitor brand mentions to stay on top of conversations around your company.
• Track competitor activity across relevant subreddits.
• Keep a daily digest of trending posts for market research or content ideas.
• Automate engagement by posting AI-generated suggested comments.

Requirements