We Build an AI-Powered Reddit Marketing Agent

Reddit is a goldmine for organic marketing, with countless niche communities full of potential customers. But here's the challenge, sifting through thousands of posts every day to find relevant conversations can feel overwhelming.

To solve this, Momen's marketing team built an AI-powered Reddit Post Analyzer to automate the process. In this article, we’ll walk through how the tool was built and why it’s something that could change the way you approach Reddit marketing.

Overview

Feature Highlights

• Automated Post Analysis: With Diffbot’s Extract API, the AI automatically extracts and scans Reddit post content from the URL to evaluate its relevance to your brand or product.

• Knowledge Base: Upload your brand’s knowledge base to ensure that the AI’s analysis and responses are tailored specifically to your product or brand’s tone and expertise.

• Structured Output: The AI outputs a structured response, including the title, summary, relevance, and reply. This structure makes it easy to display the content on the frontend and engage effectively.

The Process: Building the Reddit Post Analyzer

Using Momen, the team built this AI tool for about 1 hour, with no coding required. Here’s a quick look at how to build it:

Step 1: Extract Reddit Post Data Using an API

The first step was to pull data from Reddit. For this, use Diffbot’s Extract API. It allows you to extract text and metadata from any URL, which was perfect for grabbing Reddit post data.

• Set up the API by copying the cURL command from Diffbot and testing it using Postman.

• Then, in Momen, set up a blank project and plugged the API URL into the platform’s API settings. Momen parsed the data and made it ready for analysis.

Step 2: Configuring AI to Analyze the Post Content

Momen has an integrated AI agent builder. All we need to do is set up the prompt and configure the tools that AI needs. We select GPT-4o for this task because of its ability to understand context and generate meaningful responses.

Here’s how to set up the AI:

1. Set the Input: The input was simple: the Reddit post URL.

2. Craft the Prompt: we defined the AI’s role and goal. For example, the prompt was:

"You are an AI agent specializing in analyzing Reddit posts. Your task is to understand the content, determine its relevance to a no-code development platform, and generate a helpful response."

1. Upload Knowledge Base: To make sure the AI could respond accurately, we uploaded Momen’s knowledge base document. This helped the AI stay aligned with expertise.

1. Tool Invocation: Configure the extract API we just set up as tool. Write a name and description for AI to understand.

How Tool Invocation Works

1. Need Identification: While handling tasks, the agent identifies when specific "tools or expert knowledge" might be required.

2. Tool Selection: The agent picks the most suitable expert from a predefined list of tools.

3. Parameter Preparation: The agent prepares the necessary information by reviewing tool descriptions, such as the specific city and date required for a weather query.

4. Tool Invocation: The agent generates and calls a tool (function) in the correct format.

5. Information Integration: The agent uses the tool’s result and continues processing the responses.

6. Debug the AI: Finally, run tests on a few Reddit posts:

For irrelevant posts, the AI correctly skipped them.

For relevant posts, the AI analyzed them and suggested a helpful response.

Then it's ready to fine-tune the output.

Step 3: Customizing the Output for the UI

Momen allows you to structure the AI output, which is essential for displaying AI responses on the app interface.

Created a custom output with four key fields:

1. Title: The Reddit post’s title.

2. Summary: A brief summary of the post.

3. Is_Related: A flag to mark whether the post is relevant to Momen’s no-code platform.

4. Reply: The AI’s response to the post (if applicable).

This helps to structure the data in a way that was easy to display on the frontend.

Step 4: Add the Data Model

Before we officially start building the UI, we need to set up a data model to store the output data. Click on "Data" in the top bar, then click "Add Data Model'". Name it, and add the four objects into the columns.

Step 4: Building the User Interface (UI)

Now that the data and AI are set up, it was time to create the interface.

Drag and drop components on the canvas and adjust the layout. In this case, we need:

• Text fields to display the title and summary of the Reddit post.

• A text input where users can paste a Reddit URL.

• A button to trigger the AI to analyze the post.

Then, bind the data.

First, assign values to the page by opening "Page Data" and setting up page variables and data sources.

Then, bind the components to the data. For the button, we need to set up an action to trigger the AI when the user enters a URL and clicks the button. Set this as "Start Conversation". Upon success, trigger a data mutation to save the AI output in the database.

Finally, update the page variable to reflect the reddit_id of the given post, linking it to the newly created data.

Step 5: Previewing the App

Once everything is in place, it’s time to preview the app. Enter a Reddit URL in "Mirror", and see how the app processes the content, checks if it’s relevant to Momen, and displays the AI’s response in the UI.

Time and Cost

The tool was built in about an hour, using a visual interface that didn’t require any coding or complex workflows. For a simple internal tool like this, it's completely free to build with Momen, just top up tokens for AI usage as needed.

If you decide to scale and make your tool available to a broader audience, consider Momen's Basic plan to add advanced features.

While the initial investment of time is minimal, the potential returns can be significant. Automating tasks like post analysis and response suggestions not only saves time but also helps you focus your efforts on the most relevant conversations. Over time, this could scale into a more advanced product.

Scaling Up: What's Next?

While this Reddit Post Analyzer is a simple micro SaaS, the possibilities are endless. If you want to scale this project into a full-fledged product, you can:

Integrating with multiple AI agents to handle different types of posts.

Integrating with RPA services to automatically monitor posts and sending notifications.

Adding custom workflows such as real-time notifications to boost productivity.

Setting up a subscription model with Momen's integrated Stripe to monetize your product.

Configuring login system and permission management to ensure secure and tailored user access.

Final Thoughts

Building an AI-powered Reddit marketing tool has never been easier—or faster. Momen's marketing team created a working prototype in just 1 hour without code, and you can do the same. Whether you want to automate content analysis, engage with Reddit communities, or build more sophisticated marketing tools, Momen makes it accessible to everyone.

If you’re ready to start building, you can register for a free Momen account and begin creating your own AI-powered applications today: momen.app