Reddit Content Q&A Chatbot with GPT-4o and Reddit API

This workflow lets you chat with Reddit using OpenAI and the Reddit API.
The chatbot pulls posts from a subreddit and uses GPT to answer your questions.

⚙️ Setup Instructions

2️⃣ Set Up OpenAI Connection Go to OpenAI Platform
Navigate to OpenAI Billing
Add funds to your billing account
Copy your API key into the OpenAI credentials in n8n

2️⃣ Set Up Reddit API Go to Reddit Apps
Click Create App → Choose script type
Fill in:
Name: (your choice)
Redirect URI: http://localhost:8080 (or your n8n URL)
Save → copy Client ID and Secret
In n8n → Credentials → New → Reddit OAuth2 API
Enter Client ID + Client Secret
Log in with your Reddit account and approve access
Attach this credential to the Reddit Tool node

🧠 How It Works Reddit Tool Node** → Fetches posts from chosen subreddit (e.g., r/n8n)
OpenAI Agent** → Processes posts and your chat question
Chatbot** → Returns summarized answers with Reddit context

📬 Contact Need help customizing this (e.g., targeting multiple subreddits or filtering posts)?

📧 robert@ynteractive.com
🔗 Robert Breen
🌐 ynteractive.com