Reddit Ads API: Documentation and What You Need to Start a Campaign

Written by:

Iryna Bundzylo

7

min read

Date:

Jun 12, 2025

Updated on:

Jun 13, 2025

Reddit is a perfect place to start almost any ad – highly engaged users, real conversations, and tight communities. However, diving deep into building a campaign away, you might find yourself somewhere in a bottleneck: Reddit's API is powerful but clunky.

Let's explore how the Reddit Ads API works, what it offers, and how to use its features to the fullest with Data365.

How Data365 API Brings Out the Reddit Ads API’s Potential

If you're starting without clean, focused data, you're flying blind, probably in the other direction from your target audience. 

That's why Data365 Social Media API matters. Before you even get into Reddit's ad setup, this tool helps you create a precise portrait of your perfect customer, all through reliable, structured raw data before investing a single ad dollar.

Once you understand your audience's signals, pains, and needs, Reddit's Ads API can start bridging them to your product. How can you learn what is on their minds? Going through the needed subreddits manually may indeed be a lot of fun, but advertisers usually need to seize the moment. Tools like Data365 can do it for you in minutes. Let’s get through some details.

Marketing Strategy to Make Reddit Ads API Useful

As we mentioned above, before you touch Reddit's ad infrastructure, you can use Data365 Social Media API to “scan” subreddit conversations, identify recurring themes, and validate where actual demand is. These insights make all the difference in shaping your messaging, creativity, and targeting.

First, investigate subreddit-level data to identify your core audience. Data365 API for Reddit is a simple tool to find which communities are talking about issues connected to your product or service. We have two pieces of good news: 1) there’s definitely something for you on the platform; 2) with Data365, it won’t be a problem to go through all the communities to find your one and only.

Second, analyze user behavior inside each of those communities: posting frequency, sentiment, kinds of content that are most likely to get comments, etc. This guarantees your campaign seems natural in the Reddit ecosystem.

Third, decide when best to start your campaign. Use engagement data from Data365 to spot patterns (weekly discussion threads, seasonal activity spikes, or monthly themes), so your campaign can launch when users are most active and receptive.

Shut up and take my money meme pre-launching ad campaign insights

Fourth, test your assumptions by matching your marketing concepts to actual subreddit debates. 

Finally, with your audience, message, and timing all grounded in data, you’re ready to activate the campaign using the Reddit Ads API. Each decision is now backed by insight into real user behavior, setting your campaign up for stronger engagement and return on investment.

Then, when you have all of the public data, you can use the Reddit Ads API to the fullest. It is a powerful engine for scaling, automating, and fine-tuning campaigns of different sizes. But it's important to understand that it's not built for one-off experiments. It's designed for advertisers ready to engage Reddit's ecosystem with structure, intent, and data fluency.

What the Reddit Ads API can do

But launching ads on Reddit isn't as simple as picking a few keywords and hitting “go.” The Reddit Ads API, while powerful, is notoriously complex, built more for automation at scale than for newcomers without a clear data strategy. Further, a bit more details on it.

Want to build your ad campaign on solid ground? Start using Data365 for collecting Reddit data. Contact us, and our team will assist you in starting.

Reddit Ads API V3: What's New and Improved

Reddit Ads API V3 is a turning point for marketers seeking to maximize Reddit's vast and active user base. With the new version, advertising becomes easier to start, faster to scale, smarter to run, and safer to track.

One of the most important changes in V3 is the removal of whitelisting. Waiting time for approval is minimized now, and Reddit's ad ecosystem has become more accessible to everyone, especially solo entrepreneurs without huge marketing teams behind them.

Additionally, the Reddit Ads API V3 offers an upgraded conversion data tracking interface. Instead of hastily running from one metric version to another, attribution windows are now cleanly organized and aligned with your settings and look like this:

Reddit Ad Campaign metrics

Don’t forget to understand where your audience “lives” on Reddit with Data365 API. With deep insights into user interests and engagement patterns, it helps you identify the right communities to target so that your campaigns don't just run; they resonate with the people you created them for in the first place.

In short, Reddit Ads API V3 can give you the tools, but Data365 can give you the map.

Reddit Ads API Call to Action Object: How to Increase User Engagement

When it comes to features, Reddit Ads API Call to Action Object is definitely worth a word. The Call to Action (CTA) – a little feature in Reddit's Ads API can turn ad impressions into devoted consumers. The platform is very generous in its offerings here. Among the 13 call-to-action items available on Reddit are “Show Now,” “Sign Up,” “Download,” “Install,” “Learn More,” and others. 

Running your ads, you can:

  • Test different CTAs for performance (e.g., “Install” vs. “Download”).
  • Customize CTAs according to location, user activity, or device. Studies reveal that individualized CTAs beat generic ones by 202%, greatly increasing ROAS.

Reddit API for Ads: Integrating Reddit into Your Marketing Stack

Now, let's make the Reddit Ads API a part of your advertising routine. Here's a practical, step-by-step framework to get started: 

  1. Create a Reddit Account and Developer Application. If you already have a Reddit account, great, we can skip one step. However, if you don't, create one. You can find detailed instructions on how to fight Reddit bureaucracy in our article on how to get the Reddit API key.
  2. Register for Ads API Access. Specify how you plan to use the API and include your platform type (web, iOS, Android). You may be asked to share your OAuth Client ID and Monetization Model. Give the answers the platform requires, submit your application, and wait for approval if required. 
  3. Authenticate with OAuth 2.0. To connect securely, receive an access token by entering your Client ID and Client Secret.
  4. Use the correct time zone (by default, Reddit displays data in UTC).
  5. Fetch Your Ad Accounts. Use the API to list the ad accounts your app can access. 
  6. Create campaigns programmatically. You can build and manage ad campaigns directly through the API. 
  7. Manage Product Data (for DPAs). If you run dynamic product ads, you can upload product catalogs and organize items into sets for better targeting and reporting.

Reddit Ads API: When i’s Dotted, t’s Crossed

Reddit Ads API is a useful app, however, only when you have a strong foundation to use it. Your audience should always be at the center of your campaigns. That's why building a strong foundation with reliable, community-level data is not optional; it's essential.

Reddit's unique ecosystem of niche communities requires more than just standard demographic targeting; it demands relevance, authenticity, and timing. Data365 gives you the ability to explore these communities in detail, analyze sentiment, identify trends, and spot high-engagement content. Most importantly, all before you spend a single dollar on ads. If you need insights before launching your ads, please fill out the form, and our team will provide all the necessary information to help you get started with Data365.

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Reddit Ads API FAQ:

What is the Reddit Ads API used for?

It allows advertisers to create, manage, and optimize Reddit ad campaigns programmatically, offering advanced targeting, analytics, and automation features.

How does Data365 enhance Reddit ad campaigns?

Data365 helps analyze subreddit trends and publicly available user information, helping advertisers define audiences and messaging before launching a campaign.

What's new in Reddit Ads API V3?

V3 removes whitelisting, simplifies campaign setup, upgrades the conversion tracking interface, and supports full automation through the Ads API.

How can I optimize call-to-action buttons in Reddit Ads?

Test different CTAs, such as “Install” or “Learn More,” and tailor them to the user’s location, activity, or device. Personalized CTAs have been proven to be more effective for all types of campaigns and niches.

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