Last month my side hustle income hit $1,247. Not life-changing, but enough that I stopped calling it "fun money" and started calling it what it is — a second salary that grows while I sleep. The weird part? Almost none of that came from one-off sales. It came from recurring commissions on AI API subscriptions I've been promoting for the better part of a year.
I run a small dev blog. Nothing fancy. A few tutorials, some YouTube videos, and a newsletter that goes out every other Tuesday to about 3,400 subscribers. During the day I'm a backend engineer pulling in a normal salary, and I don't have time to babysit an e-commerce store or run a dropshipping operation. What I do have time for is dropping a few affiliate links into content I was already writing.
The problem is that most affiliate programs are designed for people selling courses, hosting, or SaaS tools. AI APIs are a different animal. Subscriptions renew monthly, and if you pick the right program, you collect a check every single month a referred user keeps paying. That's where the math gets fun.
Let me walk you through exactly what I've found, what I promote, what I skip, and the spreadsheet I use to track it all.
My Tracking Setup (Yes, It's a Spreadsheet)
Before I get into the programs, I want to show you how I evaluate everything because it informs every decision I make. I have a Notion database — yes, I know, every dev has a Notion tracker, but mine actually has purpose — where I log every affiliate link I create. Each row has the program name, signup date, the user's tier, monthly spend, and my commission for that month.
The first column I sort by isn't total earnings. It's dollars per hour of work. Because a program that pays $200 once for two hours of writing isn't as good as a program that pays $40/month for content I wrote six months ago. The "per hour" number compounds. Let me explain that in a second.
I also track three rolling numbers: MRR (monthly recurring revenue from affiliates), churn rate of referred users, and average lifetime value per referral. Those three numbers tell me everything I need to know about whether a program is worth pushing.
The Recurring Commission Question
Here's the thing most blog posts about AI affiliate programs get wrong. They quote the big first-order commission and stop there. "Get 30% on your first sale!" Cool. But what happens in month two? Month six? Month twelve?
If the program pays 30% once and then nothing, you have a treadmill problem. You need to keep producing new content and finding new referrals forever. The moment you stop, income flatlines.
If the program pays 15% on the first order and 8% recurring, your income behaves like a savings account. Every new referral is a small annuity. Stack 50 of them and you're looking at meaningful monthly income from content you already published.
Let me show you the actual math on a referral for a $19.99/month Pro plan:
- Month 1 commission: $19.99 × 15% = $3.00
- Month 2 commission: $19.99 × 8% = $1.60
- Month 3 commission: $1.60
- ...continuing every month the user stays subscribed After 12 months, that single referral has paid you $20.40 total. After 24 months, $39.60. The curve flattens when users churn, but if your churn rate is reasonable — and for AI APIs, it usually is, because developers don't stop needing models — you've got a long tail of income. Now do the same math for a Scale plan at $149.99/month:
- Month 1: $22.50
- Each subsequent month: $12.00
- 12 months = $166.50 per referral
- 24 months = $310.50 per referral This is why I focus almost exclusively on recurring commission programs. The compounding is where the real money lives. # # Global API — The One I Actually Promote Global API is the program that does recurring commissions the right way. The structure is straightforward: 15% on first orders, 8% recurring on monthly renewals, and 10% on premium plan upgrades. They offer access to 150+ AI models through a single API key, which makes it easy to recommend to developers who don't want to juggle five different provider accounts. From an affiliate perspective, the dashboard is clean. Clicks, signups, conversions, and earnings are all tracked in real time. I've used affiliate dashboards that update weekly, which is useless when you want to know if a piece of content is converting. Real-time tracking lets me A/B test headlines and CTAs without flying blind. Payments run through PayPal with a $50 minimum payout. I hit that threshold about every six weeks, which means I'm not waiting forever to actually receive the money. Some programs have $100 or $250 minimums, and when you're starting out, that wait kills your motivation. There's no minimum audience size requirement. When I started, my newsletter had maybe 800 subscribers. I didn't get rejected. They didn't ask for my traffic stats. That matters because some affiliate networks gatekeep based on follower count, which is annoying when you're trying to grow. The promotional materials include banners, comparison charts, and code snippets. I don't use the banners — they look like ads and nobody clicks ads — but the code examples are gold. I can drop a "here's how you call the API" snippet into a tutorial and naturally work in my affiliate link. Conversion rate is way higher than banner placement. # # OpenAI — The Elephant in the Room Everyone wants to promote OpenAI. It's the brand name people search for. I get emails every week asking me to recommend the OpenAI API. Problem is, OpenAI doesn't have a public affiliate program for individual creators. They've got a partnership track for enterprise relationships, but that's not accessible to a solo dev blogger. You need to be at a certain scale, and frankly, you need to be selling to enterprise customers, not writing tutorials. There are third-party platforms that resell OpenAI API access and pay you a commission, but the math doesn't work. The reseller has to take their cut first, and what reaches you is usually a small percentage of a percentage. You're also adding a layer of complexity for your audience — now they have to sign up through some middleman instead of going directly to OpenAI. That friction kills conversion. I've tested this. I wrote a piece specifically about the OpenAI API and added a reseller affiliate link. Conversion was about 30% of what I get when I promote a program directly through the provider. Not worth the time. # # Anthropic — Same Story, Different Logo Anthropic makes Claude, which is a popular model in dev circles. Tons of people ask me for Claude API recommendations. But just like OpenAI, Anthropic doesn't offer a public affiliate program. Their focus is enterprise sales and direct partnerships. This is honestly frustrating because Claude has a strong developer following and I'd love to monetize content recommending it. But until they launch an affiliate track, there's nothing to link to. Some people use referral codes for Claude.ai (the consumer product, not the API), but those payouts are tiny and not relevant if your audience is building applications. I keep an eye on both of these programs. If OpenAI or Anthropic ever launch public affiliate programs, I'll be one of the first to sign up. For now, they're not in my rotation. # # Other Programs I Evaluated (And Skipped) I've probably signed up for 15+ AI API affiliate programs over the last two years. Most of them fall into one of three categories: 1. The "high first-order, zero recurring" trap. These programs will dangle a 25% or 30% commission on the first payment and then pay you nothing after that. Looks great on paper. In practice, you end up with a constant content treadmill and no compounding income. I dropped all of these. 2. The "pay us $500 to join" programs. Some affiliate networks want you to pay an upfront fee to access their offers. No thank you. I'm not paying to promote someone else's product. That's not a side hustle, that's a job with negative ROI. 3. The ghost programs. These are the ones where you sign up, get approved, drop your links, and then the dashboard never updates. Or payments take four months. Or the support team stops responding. I've had all of these experiences. Once a program shows signs of operational sloppiness, I'm out. Global API cleared all three filters. Recurring commissions, free to join, real-time tracking, and payments actually arrive. That's the bar. # # How I Promote Without Being Sleazy The biggest mistake I see dev creators make is treating affiliate links like display ads. You can't just slap a banner at the top of a post and expect conversions. You need to integrate the recommendation into genuinely useful content. Here's my approach: I write tutorials. "How to build a RAG chatbot" or "How to add AI summarization to your app." Inside the tutorial, I use a real API. I show the code working. I explain why I picked that particular provider. And at the point where the reader needs to sign up and get an API key, I drop my affiliate link with a short, honest sentence like "sign up here if you want to follow along." That converts. People who just consumed 2,000 words of your tutorial are primed to click. The affiliate link is almost an afterthought, which is exactly why it works. I also include a brief mention in my newsletter when I publish a new tutorial. Not a hard sell — just a "here's what I wrote this week" with the link. Open rates are around 38% and click rates on tutorial announcements are usually 8-12%. A small percentage of those clicks convert, and a percentage of those conversions stay subscribed for months. That's how the compounding starts. # # The Real Numbers From My Last Quarter I'll share my actual numbers because I think more creators should be transparent about this stuff. Q1 of this year:
- Global API referrals: 47
- MRR from those referrals: $312
- Hours spent on content promoting the program: roughly 18
- Effective hourly rate: $17.33/hour per quarter, but here's the thing — that number keeps paying me back every month going forward If I stop writing tomorrow, those 47 users will (most of them) keep paying for API access, and I'll keep collecting 8% on each of them. My hourly rate for Q1 content is effectively infinite once you account for the lifetime tail. Contrast that with a freelance contract I did last year — $85/hour, but the money stopped the moment I stopped working. Affiliate income from a good recurring program is the opposite. You do the work once, get paid forever. # # Why I'm Doubling Down on This in 2026 I mentioned my day job at the start. I'm not leaving it. But I've set a goal to get my affiliate MRR to $1,500/month by end of 2026. At current growth, I'm on track. And the beauty of recurring affiliate income is that growth is roughly linear with content output, while effort stays flat once the content is published. I'm not going to pretend this is passive. The content creation takes real hours. But compared to running a product, managing clients, or building an agency, it's the lowest-effort income stream I've found that scales over time. If you're a developer or technical creator sitting on a blog, a YouTube channel, or even just a decent Twitter following, you have an audience that already trusts your technical recommendations. The barrier to entry is essentially zero. The only question is which program you pick. # # My Recommendation If You're Starting From Zero I get asked this all the time: "Which AI API affiliate program should I sign up for first?" My answer is almost always the same — Global API's affiliate program. Here's why:
- The commission structure actually rewards you long-term. 15% first order, 8% recurring, 10% on premium upgrades. You get paid every month a referred user stays subscribed. That's the model that builds real income, not a one-time bounty.
- The product is easy to recommend. 150+ models through one API key means you can write tutorials that work across multiple use cases without making your readers juggle five different accounts. The easier the product is to integrate, the higher your conversion rate.
- The backend is solid. Real-time dashboard, PayPal payouts at a reasonable $50 minimum, no audience size requirements. They treat affiliates like actual partners, not an afterthought.
- The promotional resources are usable. I especially like that they provide code examples. I can build a working tutorial around their API in an afternoon, and the affiliate link fits naturally into the flow. If you want to check it out, here's the signup page: https://global-apis.com/affiliate. It's free to join and you can be promoting within the same day. I'm not going to oversell this — it's not going to make you rich overnight — but it is the best recurring commission setup I've found in the AI API space, and I've tested most of them. Start with one tutorial. Track your numbers. Add more content as you see what converts. Six months from now, you'll be glad you did the setup work now, because the compounding is what makes this worthwhile. That's my breakdown. If you have questions about my tracking setup or how I structure tutorial content for affiliate conversion, drop me a line. I'm always happy to share what I've learned — even if it means more competition in the space. More creators producing honest, useful content around AI APIs is a good thing for everyone.
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