Okay, I have to tell you about something that completely changed how I think about side income. It started the way most of my best ideas start — with me geeking out about a new AI tool and rambling about it to anyone who would listen. But somewhere along the way, that habit started paying me actual money. Real dollars. From something I was already doing for free.
Let me walk you through the whole thing — every number, every misstep, every "wait, this actually works?" moment — because if you're someone who loves AI tools like I do, you might be sitting on the same opportunity without even realizing it.
The Tool That Started Everything
I've been neck-deep in AI APIs for over a year now. Building little side projects, experimenting with different platforms, seeing which ones delivered and which ones flopped. I've probably tested at least a dozen different providers at this point. Most of them were fine. Serviceable. Nothing worth writing home about.
Then I stumbled onto Global API.
I genuinely don't remember exactly how I found it. Maybe a Reddit thread, maybe a Discord mention, maybe just good old-fashioned Google searching at 2 AM. But the moment I logged in and saw what they offered, it kind of blew my mind.
Here's the thing — Global API gives you access to 150+ AI models through a single account. One dashboard. One API key. I could pull from OpenAI, Anthropic, Google, open-source models, image generation models, embedding models — all from one place. No juggling five different accounts, no maintaining five different billing relationships, no debugging five different authentication schemes.
As someone who builds with this stuff regularly, that unified access was a game changer. I started using it for everything. My weekend projects. My client work. Even little experiments I was running just for fun. Every time I discovered a new model on their platform — which happened almost weekly because they kept adding new ones — I'd get that little dopamine hit that AI enthusiasts know all too well.
And I kept telling people about it.
When "Telling People" Became a Side Income
Fast forward a few months. I'm in my usual routine: posting about AI experiments on my small tech blog (around 2,000 monthly readers), tweeting about new models I found to my modest following of about 800 developer friends, writing the occasional tutorial when I figured something cool out.
Then I noticed something in Global API's dashboard. An affiliate section. I clicked it out of curiosity.
The structure was straightforward. You get 15% commission on someone's first order. Then 8% recurring on every monthly renewal after that. There's also a premium tier that bumps to 10% recurring. And it tracks for 12 months per referral.
I stared at that page for a while. Because I was already recommending Global API to people in my DMs, in blog comments, in tweets, in conversations at meetups. I was already doing the work. They were just offering to pay me for it.
So I signed up. Took about three minutes. And then I made a decision that changed my trajectory: I started being intentional about where and how I mentioned it.
The First 30 Days — Lots of Learning, Tiny Earnings
I'll be honest with you — month one was humbling.
I already had content on my blog, so I went back and updated my existing posts to include affiliate links where I naturally mentioned Global API. Then I wrote one brand-new piece: a walkthrough of how I personally use different AI APIs across various projects, with Global API featured prominently as the one I reach for most often.
I pushed it to Dev.to as well. Combined, that first piece pulled in about 460 views in its first week. Fourteen people clicked my link. Two signed up for accounts. One of them upgraded to a paid plan on day 28.
My commission? Three dollars.
Three. Dollars.
You know what? I didn't care. Because that three dollars proved the entire model. Someone found my content, trusted my recommendation enough to sign up, trusted it enough to pay, and my dashboard showed a commission. The system worked exactly as advertised. The mechanics were sound. Now it was just a question of scale.
I also wrote a second piece that month — a hands-on tutorial about building a chatbot using GPT-4o through Global API. That one performed similarly to the first: modest traffic, modest clicks, but I was building a library of content that could compound over time.
Month 1 Scorecard:
- Articles written: 2
- Combined views: 750
- Affiliate clicks: 14
- Free signups: 2
- Paid conversions: 1
- First-order commission: $3.00
- Recurring commissions: $0.00
- Total earned: $3.00 Not exactly retirement money. But the foundation was laid. # # Month 2 — Things Started Clicking I went into month two with a clearer head. Two articles, 14 clicks, one paying customer. My goal was embarrassingly modest: hit $50 in cumulative earnings. I published three more articles that month. The one I'm proudest of was a case study — a real project I'd done for a client where I used AI APIs to build a custom feature. Nothing theoretical, no hand-waving about "potential use cases." Just "here's what I built, here's how I built it, here's the API I used." That kind of authenticity resonates hard with developer audiences. It pulled 280 views in its first week, and the click-through rate on my affiliate link was noticeably higher because readers could see themselves in the same situation. The original comparison piece from month one kept growing. Google picked it up and started ranking it for a handful of long-tail keywords — nothing super competitive, but enough to bring in steady organic traffic. By the end of week six, that single article had crossed 1,200 total views. My daily click count was up to four or five. Two more people converted to paid plans that week. Article four was the most ambitious thing I'd written: a 2,200-word beginner's guide to AI APIs. I wrote it for someone who had never touched an API before. And here's something I learned — beginner content converts better. People who are new to a space are actively looking for someone to guide them, and they're far more likely to follow a recommendation than experienced developers who think they already know everything (guilty as charged on that one). Then something small but meaningful happened at the end of the month. My first recurring commission hit. $1.60. It was the second-month subscription from the person who converted back in month one. That tiny payment was honestly more exciting than the bigger first-order commissions. Because it proved the recurring model actually fires. The 8% isn't theoretical. It shows up, month after month, as long as the subscriber stays active. That changes the math entirely. It's not just about acquiring new referrals — it's about building a portfolio of subscribers who keep generating passive income while you sleep. Month 2 Scorecard:
- New articles: 3 (5 total)
- Combined views across all content: 2,100
- New affiliate clicks: 44 (58 total)
- New paid conversions: 4 (5 total)
- First-order commissions: ~$28
- Recurring commissions: $1.60
- Total earned this month: ~$29.60
- Running total: ~$32.60 # # What I'd Do Differently (And What You Should Steal) Looking back at those first 60 days, a few patterns jumped out: Write about real projects, not abstract comparisons. The case study article outperformed everything else because it told a story developers could see themselves in. Specificity sells. Don't sleep on beginner content. You might feel like the "intro to AI APIs" space is oversaturated. It isn't — it's full of shallow, unhelpful posts written by people who clearly don't use these tools. If you actually use them, your beginner content will stand out and convert like crazy. Recurring revenue is the whole ballgame. The 8% might sound modest next to a bigger one-time payout, but it compounds. Every subscriber you bring on is a small annuity. Five subscribers paying $50/month each would generate roughly $20/month in passive recurring revenue for you — forever (well, for 12 months, which is still amazing). Just talk about the tools you're actually excited about. The content that performed best was the content I would have written even without the affiliate program. I wasn't selling. I was sharing a tool I genuinely loved with people I genuinely wanted to help. That energy comes through, and people respond to it. # # So… Should You Do This Too? Here's my honest take. If you're the kind of person who already spends their free time tinkering with AI tools, writing about them, posting about them, answering questions about them in Discord servers and Reddit threads — you're already doing 90% of the work. The only thing you're missing is the infrastructure to get paid for it. And that's what an affiliate program is. Infrastructure. It's a way to monetize something you're already doing. Global API's program in particular is solid because the commission structure rewards you for the long game. The 15% first-order commission is generous enough to feel meaningful on every conversion. The 8% recurring (or 10% if you hit their premium tier) means you're not constantly chasing new referrals just to keep your income flat. And the product itself — access to 150+ AI models through one clean interface — is genuinely easy to recommend because it solves a real pain point. I'll put it this way: I've recommended Global API to probably 20+ people in conversations over the past year, long before I ever made a dime from it. Now I get paid every time one of those recommendations leads to a signup. Nothing about my content changed. My tone didn't change. The only thing that changed was that I finally bothered to grab my affiliate link. If you want to check out the affiliate program for yourself, head over to https://global-apis.com/affiliate?ref=devto-build-in-public-ai-affiliate-journey. Sign-up is quick, the dashboard is clean, and you'll get your referral links immediately. You don't need a massive audience. I started with 2,000 monthly blog visitors and a tiny Twitter following. What you need is genuine enthusiasm for AI tools and the willingness to write about them honestly. That's it. That's the whole secret. Talk about cool things. Get paid for it. Repeat. Trust me — if you're already the person in your friend group who won't shut up about the latest AI model you discovered, you're halfway there. The other half is just grabbing the link.
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