This AI Agent Makes Money for You Every Day (Without Creating Content Yourself)

Every morning, millions of people are already posting their problems to Reddit. They are asking where to find something, what to do about a health condition their dog has, how to start a side business on a budget. That is free market research sitting in public view, and until now, collecting it meant hours of manual scrolling. This walkthrough shows you how to build a no-code AI agent in N8N that does the scrolling for you, pulls the most active posts from any subreddit, summarizes them, and generates content ideas, digital product ideas, and affiliate marketing opportunities automatically into a Google Sheet before you sit down at your desk.

The whole setup runs on a free Reddit account, a two-week free trial of N8N, a ChatGPT API key you can load for under five dollars, and a Google account you likely already have. You do not need to know how to write a single line of code. Everything is visual, drag-and-drop, and walks you through the connections step by step.

What You’ll Walk Out With

How to pull hot Reddit posts from any subreddit using N8N’s built-in Reddit node
The exact filter criteria to remove low-quality and NSFW posts automatically
How to use a summarize node to condense each post into a usable brief
The exact prompts that generate three compelling video ideas per post
The exact prompts that generate five digital product ideas you could build in a weekend
The exact prompts that surface five affiliate marketing opportunities per topic
How to export everything to a Google Sheet that updates on autopilot every day
Not sure which monetization path fits your skills? Get a free recommendation at finder.platformproof.com

What This AI Agent Actually Does

At the highest level, the agent does four things in sequence. It pulls Reddit posts from a subreddit you choose, filters them down to only the posts with real engagement and actual text, runs each post through a series of AI agents that generate monetization ideas, then deposits everything into a Google Sheet you can review whenever you are ready to work.

The example walkthrough in the video uses the dog subreddit, which has over 440,000 members and ranks in the top one percent of all subreddits. The search keyword used is “where,” specifically because people who ask “where” questions are usually looking for a solution rather than just chatting. That intent signal makes those posts much more useful when you are trying to spot product and content opportunities.

The final output in the Google Sheet includes the original post title, the full text of the post, the URL, the date it was created, a short AI-written summary, three video ideas, five digital product ideas, five affiliate marketing ideas, and the subreddit name. You get all of that for every post that clears the filter, and the whole process runs automatically so the sheet updates itself. The creator Alston points to as real-world proof is Jamie Woler, who built a YouTube channel around reading Reddit AITA posts and reacting to them. She is not doing anything technically difficult. She found popular content that already resonated with an audience and built a video format around it. This workflow compresses her research phase from hours of scrolling to a few seconds of automation.

Tools You Need and What They Actually Cost

You need four things to build this. A Reddit account, which is free. An N8N account, which gives you a two-week free trial, enough time to build and fully test the workflow before you decide whether to pay for continued access. A ChatGPT API key, which you can activate and load for under five dollars. At the volume this workflow runs, that balance will last a long time. And a Google account for Google Sheets, which is free.

The realistic startup cost here is under five dollars. There is no expensive software subscription to commit to upfront. You can test the entire workflow during N8N’s free trial, see whether the output quality meets your needs, and then decide whether to continue. That is a meaningful advantage compared to most tools that ask you to pay before you know what you are getting.

Setting Up the Reddit Connection in N8N

Once you have your N8N account, the first node you build after the trigger is the Reddit node. You connect it to your Reddit account by creating a new credential inside N8N. N8N links directly to Reddit’s developer documentation, and the process takes about five minutes. You go to Reddit, create a new app, copy the OAuth redirect URI that N8N provides, paste it into Reddit’s app settings, then copy your client credentials back into N8N and click save.

Once you are connected, you choose whether to search one specific subreddit or all of Reddit. Sticking to one subreddit when you are starting out is the smarter move. Searching all of Reddit returns far more results but also pulls in adult content, which means you need additional filtering steps to keep the output usable. Starting with one focused subreddit gives you more targeted ideas and a simpler workflow to manage while you are still learning the tool.

Set the search to return 10 posts sorted by “hot,” which means active discussions with real upvotes and ongoing comments. You can increase that to 20 or 30 posts per run once you are comfortable with how everything connects, but 10 is the right number to start with. It keeps your processing time short and gives you a manageable number of ideas to review without getting overwhelmed.

Filtering Out Low-Quality Posts

The filter step is an if-statement node that applies three conditions before any post moves forward in the workflow. First, the post must have more than five upvotes. Posts with fewer than five upvotes are either too new or too niche to signal real audience interest, and building ideas around them is a waste of time. Second, the post must have actual text content rather than just a link or an image. The filter checks that the “selftext” field is not empty. Third, the post must have been created within the last 14 days so you are working with current conversations, not outdated ones.

One additional filter that Alston specifically recommends adding is a check for NSFW content. Inside N8N, you can drag and drop filter conditions, so finding the not-safe-for-work field and filtering it out takes about 30 seconds. Without this step, if you ever expand to searching all of Reddit rather than a specific subreddit, a significant portion of your results will be adult content. The filter keeps your idea sheet clean and appropriate for any audience you write for.

In the example walkthrough, 10 posts went into the filter and 7 came out the other side. That attrition rate is normal. Three posts did not meet the requirements, and the workflow simply discarded them automatically. You never see the low-quality posts. Only the ones that passed all three conditions move forward.

Summarizing Posts and Feeding the Idea Chain

After the filter, the workflow uses N8N’s built-in summarize node to create a short plain-language summary of each post. For the dog subreddit post about black dots on a dog’s tail, the summary output was: “The person is unsure about a condition on their dog’s tail characterized by small black dots. They initially thought it was fleas, but the dots are not moving. They are seeking advice on what the condition might be.” That is the full input the AI agents work from.

Between each AI agent step, the workflow uses a merge node to combine the latest output with all the original data from earlier steps. This is what ensures the Google Sheet ends up with every piece of information in a single row. You start with the original post data, add the summary, add the video ideas, add the digital product ideas, add the affiliate ideas, and by the time everything reaches the Google Sheets node, each row is a complete picture of one opportunity. You do not have to manually cross-reference anything.

One important thing Alston notes about prompts in this workflow: giving the AI agent less information in the prompt often produces sharper output. This is counterintuitive because most people’s instinct is to provide as much context as possible. But in testing, removing verbose instructions and keeping prompts short produced more focused and actionable ideas. Keep that in mind when you are refining your own prompts.

The Three AI Agents and the Exact Prompts

The first agent handles video ideas. The prompt is: “Act as an expert in content marketing and viral content creation based on the following text. Generate three compelling video ideas optimized for engagement.” For the dog tail post, the output included ideas like a video on identifying and treating common skin conditions and a video on diet and nutrition for dogs. These are not random suggestions. They are directly derived from what a real person with a real problem asked publicly. The ideas are pre-validated by the fact that someone already searched for an answer.

The second agent handles digital product ideas. The prompt is: “Act as an expert in digital product creation and monetization based on the following output. Generate five digital product ideas I can create in a single weekend.” The output from the dog example included a pet health checklist, a common pet skin condition guide, and a pet nutrition mini-course. These are simple, low-cost products to produce that address the exact concern the original Reddit post raised. You would not need to guess at demand because the demand is already visible in the post itself.

The third agent handles affiliate marketing. The prompt is: “Act as an expert in affiliate marketing. Suggest five affiliate marketing opportunities I can explore. Focus on programs that offer recurring commissions, digital products, or tools priced between $10 and $100.” Alston notes in the video that output from the affiliate agent can sometimes come back muddled on the first run. If that happens, simplify the prompt further rather than making it longer, and test again. Different chat models also produce different quality output, so experimenting with model selection inside N8N is worth doing.

Trigger Options: Daily Schedule or On-Demand

You can set the workflow to trigger two different ways. The first option is a cron trigger that runs on a fixed schedule. In the video, the workflow is set to fire every morning at 6 a.m. so the Google Sheet is already populated by the time work starts. You can set it to run once a day, several times a day, or just once a week depending on how quickly you want to build up a pipeline of ideas.

The second option is a Telegram trigger, where you send a message to your own AI agent and it returns 20 content ideas on demand. This approach gives you more control if you only want to run the workflow when you are actively planning content rather than having it run whether or not you check it. Both options are valid. The daily schedule works best if you want an idea pipeline that grows whether or not you are paying attention to it. The Telegram trigger works better if you prefer to pull ideas when you need them rather than accumulating a backlog.

Two Concrete Ways to Turn This Into Income

The first path is building your own content operation. If you are working toward a YouTube channel, a TikTok presence, or any kind of social media account, the hardest part is coming up with ideas that people actually care about consistently over time. This workflow removes that problem entirely. You wake up with 10, 20, or 30 ideas already in your Google Sheet, each one tied to a real question someone was publicly asking. You never face a blank screen again because the research has already been done.

For context on why this matters for income: with 1,000 subscribers and 4,000 watch hours on YouTube, you can apply to the YouTube Partner Program and start earning ad revenue directly. Getting there requires consistent output, and consistent output requires a consistent supply of ideas. This workflow can supply that without requiring you to spend hours researching manually before every video.

The second path is selling this as a service. Local business owners, independent content marketers, and early-stage creators all struggle with content ideas. You could build this workflow once, set it up configured for a client’s niche, and charge a monthly retainer to deliver 30 on-topic content ideas every week. The value to the client is real. You save them time, which is one of the three things Alston comes back to repeatedly in the video: people will pay you when you save them time, save them money, or help them make more money. A steady stream of audience-validated content ideas saves all three.

Not sure whether to build a content channel, sell digital products, or offer a service?

Take the two-minute quiz at finder.platformproof.com and get a personalized recommendation based on your skills and schedule.

Honest Drawbacks to Know Before You Start

N8N has a learning curve if you have never used a visual workflow builder before. The concepts of nodes, connections, and merge blocks are not hard to understand, but the first build will take longer than you expect. Alston says directly in the video that this workflow took him longer than he wanted to finish. Plan for a few hours on your first build, not 20 minutes.

The AI output is not always clean on the first run. In the video, the affiliate marketing agent returned mixed results before the prompt was refined. The workflow is a starting point, not a finished product. You will spend time testing prompts and adjusting filter conditions before everything produces consistently usable output. That is normal. Expect iteration.

Reddit’s API has rate limits and usage policies that can change. At the volume shown in the video, pulling 10 posts from one subreddit once per day, you are well within any reasonable limit. But if you try to scale this to pull from dozens of subreddits simultaneously or run it many times per hour, you may run into restrictions. Start conservative and expand gradually.

The ChatGPT API costs under five dollars to start but does accumulate costs as you run more queries. At the volume in the demo, it will stay cheap for a long time. As you scale up to more subreddits, more posts per run, or more idea-generation agents, that cost will increase. It is worth tracking so you do not hit an unexpected charge.

Finally, NSFW filtering needs to be set up deliberately. This is not something that happens automatically. If you skip the filter step and run the workflow against all of Reddit rather than a specific subreddit, a portion of your results will be adult content. Alston flags this explicitly in the video. The filter is a 30-second drag-and-drop inside N8N, and it is not optional if you want a clean output.

Step-by-Step Setup Order

Create a free Reddit account and register a new app in Reddit’s developer settings to get your API credentials
Start your free N8N trial and create a new workflow
Add a schedule trigger and set it to fire at 6 a.m. daily or a time that works for your schedule
Add the Reddit node, connect your credentials, choose one subreddit, set keyword to “where,” sort by hot, limit to 10 results
Add an if-statement node: upvotes greater than 5, selftext not empty, created within 14 days, NSFW equal to false
Add an edit fields node to label and carry the original post title, text, URL, creation date, and subreddit
Add a summarize node to condense each post into a brief
Add a merge node to combine the summary with your original edit fields
Add an AI agent for video ideas with the prompt: “Act as an expert in content marketing and viral content creation based on the following text. Generate three compelling video ideas optimized for engagement.”
Merge the video ideas output with previous data
Add an AI agent for digital product ideas with the prompt: “Act as an expert in digital product creation and monetization based on the following output. Generate five digital product ideas I can create in a single weekend.”
Merge the digital product ideas output with previous data
Add an AI agent for affiliate marketing with the prompt: “Act as an expert in affiliate marketing. Suggest five affiliate marketing opportunities I can explore. Focus on programs that offer recurring commissions, digital products, or tools priced between $10 and $100.”
Final merge of all data
Add a Google Sheets node, connect your Google account, and map each field to a column: title, original post, URL, date, summary, video ideas, digital product ideas, affiliate ideas, subreddit
Save the workflow, run a test, and verify the Google Sheet populates correctly

Find Your X

This workflow hands you unlimited raw material. It does not tell you which path to take with it. Some people will use these ideas to build a content channel. Others will turn the digital product suggestions into their first sellable product. Others will package the whole service and sell it to a business owner. Which one fits your skills, your schedule, and the income number you are actually working toward? The two-minute quiz at finder.platformproof.com gives you a direct answer based on where you are right now.

Frequently Asked Questions

What is N8N and is it really free to start?

N8N is a visual no-code workflow automation platform where you connect different apps and services through a drag-and-drop interface. It is genuinely free to start in two ways. First, N8N is open-source and can be self-hosted at no cost if you have access to a server. Second, N8N’s cloud product offers a two-week free trial that gives you full access to build and test workflows. The trial is enough time to build the Reddit AI agent workflow shown in the video and verify that it works before deciding whether to pay for ongoing access.

Do I need to know how to code to build this?

No. The entire workflow shown in the video is built using N8N’s visual interface. Every connection between nodes is made by clicking and dragging. The prompts sent to the AI agents are plain English text you type into a field. The only configuration that looks slightly technical is connecting your Reddit API credentials, and N8N walks you through that with a direct link to Reddit’s documentation. The process takes about five minutes. No coding background is required at any step.

Which subreddits work best for finding monetizable ideas?

The most useful subreddits for this workflow are ones where people ask questions looking for practical solutions. Subreddits organized around hobbies, health concerns, pets, parenting, finances, and small business tend to produce better raw material than entertainment or meme-focused communities. The dog subreddit used in the example has over 440,000 members and ranks in the top one percent of all subreddits, which makes it a strong source. Start with a subreddit you already know something about. Familiarity with the community helps you evaluate whether the AI-generated ideas are actually useful.

How much will the ChatGPT API actually cost to run this workflow daily?

At the volume shown in the video, processing 7 to 10 posts per run with three AI agents each, the per-run cost is very small. A five-dollar API credit will last a meaningful amount of time for daily use at this scale. The exact cost depends on which model you select inside N8N. More capable models cost more per token. GPT-3.5 Turbo is the most affordable option and works well for the types of idea-generation prompts used in this workflow. You can monitor your usage in your OpenAI account dashboard and top up as needed.

Can I use this for niches other than pets?

Yes, and this is one of the most practical aspects of the workflow. The pet niche is what Alston happened to be building in at the time of the video, but the workflow itself is niche-agnostic. You change the subreddit and the keyword, and the AI agents produce ideas relevant to whatever topic area you choose. Alston mentions in the video that he has multiple YouTube channels and uses AI agents to support content creation across all of them. The same workflow structure works for fitness, finance, cooking, home improvement, travel, or any other topic with an active Reddit community.

How long does it actually take to build this from scratch?

Alston says directly in the video that it took him longer than he wanted to finish this workflow. He does not give a specific number, but his candor is useful context. For someone new to N8N, a realistic estimate for building and testing the full workflow as shown in the video is two to four hours spread across one or two sessions. Much of that time is spent on the learning curve of understanding how nodes connect and how merge blocks work. Once you have built one workflow in N8N, subsequent ones go much faster because the core concepts carry over.

What should I do if the AI output comes back weird or off-topic?

Two things help most. First, simplify the prompt. This is counterintuitive, but Alston found in testing that shorter prompts with less instruction produced more focused output than longer, detailed prompts. If the affiliate marketing agent is returning irrelevant suggestions, try removing explanatory clauses from the prompt and testing again with just the core ask. Second, try a different chat model inside N8N. The model selection dropdown is available on each AI agent node. GPT-4 tends to produce more coherent output than GPT-3.5 on complex tasks, though it costs more per query.

Is this only useful for content creators or can anyone use it?

The workflow generates three distinct types of output: content ideas, digital product ideas, and affiliate marketing ideas. Content creators will gravitate toward the first bucket. But the digital product ideas and affiliate marketing ideas are actionable for anyone who wants to build an online income, not just people who make videos. Someone who wants to create and sell a simple digital product could use this workflow purely as a product research tool. Someone who wants to build an affiliate marketing site could use it to identify programs worth promoting. And as Alston points out, someone who does not want to build anything themselves could build this workflow and sell the service to local businesses or marketing agencies.

Sources

N8N workflow automation platform: n8n.io
Reddit API documentation: reddit.com/dev/api
OpenAI API pricing: platform.openai.com/pricing
Google Sheets API: developers.google.com/sheets/api
Original video: This AI Agent Makes Money for You Every Day (Without Creating Content Yourself): youtube.com/watch?v=1a8EmKKDDCw

Helping 1 million working adults make their first $3,000 online with the skills they already have. Alston Godbolt, Platform Proof.