I'm going to be uncomfortably transparent with you here. That's the whole point of build in public — you show the messy spreadsheet, the embarrassing months, and the wins that only happen because you kept going when nobody was watching.
This post is a full income breakdown of one specific slice of my side hustle pie: tech affiliate links. Not the vague "I make money blogging" stuff. Real numbers, real screenshots of dashboards I actually use, and the exact math behind why a chunk of my monthly revenue now arrives in my inbox while I'm sleeping.
If you've ever wondered whether affiliate income is actually worth the effort for a developer, this should give you a definitive answer.
Why I'm Sharing This (And Why Most People Won't)
I post monthly income reports. Not because I'm trying to brag. Mostly because when I was starting out, I couldn't find anyone being honest about what they actually earned. Every blog post I read was either an AdSense screenshot with $3.41 on it, or some guru claiming "$47,000 in 30 days" with suspiciously no proof.
So I started posting my own numbers. The good months. The bad months. The "I made $14 this month and almost quit" months.
Here's my real numbers situation right now: I run five different income streams as a developer. Some are predictable. Some are wild. Affiliate income has quietly become one of my favorite ones, and the reason has everything to do with leverage.
Let me show you how it happened.
The Five Streams (So You Have Context)
I don't want affiliate income to look magical in isolation, so here's the full picture of my developer side hustle stack in 2026. I'm going to be specific about hours, dollars, and the tradeoff with each one.
1. Freelance development. This is where the hourly rate lives. I charge between $100-150/hour depending on the client. Sounds great until you realise it's the most fragile income stream possible. The second I take a vacation, log off for a long weekend, or get sick — that money stops. It's a direct hour-for-dollar trade. Zero leverage.
2. SaaS product. A small tool I built that does one thing well. It brings in $800-1,200 per month on a recurring basis. Took me six months of evenings and weekends to ship. Now it eats maybe five hours a week of customer support and minor updates. The per-hour return is solid, but I will never get those six months back, and the project does require ongoing babysitting.
3. Tech blog ad revenue. My blog pulls around 50,000 monthly page views. Ad networks pay me $200-400 a month for that traffic. To maintain it, I need to publish 4-8 articles per month, and each one takes 2-4 hours of writing. It's a content treadmill. Stop publishing, watch traffic die, watch revenue crater.
4. YouTube sponsorships. I put out two videos per month. Sponsors pay between $500 and $1,500 per video depending on who's buying. Each video costs me around 15 hours from idea to published (scripting, recording, editing, thumbnails, promotion). The hourly rate is genuinely good. The problem? Sponsorship income is moody. One month you have two great deals. The next month, the inbox is crickets.
5. AI API affiliate commissions. And this is the one we're really here to talk about. Right now this stream brings in $350-600 per month. Initial setup was maybe ten hours of writing. Ongoing maintenance is roughly two hours a month — updating old articles, dropping in fresh links when I write new pieces.
Read that last paragraph again. Ten hours of upfront work. Two hours a month to keep it running. And it pays more than my blog ads, with less ongoing effort than literally every other stream except the SaaS product.
That's the math that got my attention.
The Month-by-Month Story (Build in Public Style)
Let me walk you through how this actually happened. I'm pulling these numbers from a spreadsheet I update religiously because that's what build in public people do.
Month 1: $0. I signed up for a few affiliate programs. I had no audience, no content strategy, no clue what I was doing. I think I referred my own test account at one point just to see if the tracking worked. Embarrassing, but honest.
Month 2: $0. Still nothing. I wrote one article about AI tooling that nobody read. I almost didn't keep going.
Month 3: $11.43. One random signup from somebody in Brazil. I was so excited I screenshot the dashboard and posted it to Twitter with the caption "eleven dollars baby." My followers roasted me. I kept going.
Month 4: $34. Two more referrals. The compounds started kicking in because the program I was promoting offered recurring commissions, not just one-time payouts. That single fact changed my entire outlook.
Month 5: $67. I rewrote my best-performing article to include better placement of affiliate links — not spammy, just contextual recommendations where they actually fit. Conversions ticked up.
Month 6: $142. First "real" month. I started seeing the flywheel effect. Old articles I had written months ago were still generating clicks. New content amplified everything.
Month 7: $198. I went deeper. Wrote two more comparison pieces. Joined an additional affiliate program for an AI API platform that I'll talk about in a minute.
Month 8: $278. The recurring nature of the commissions meant each month kept stacking on the previous one. Customers I'd referred in month 4 were still paying their subscriptions, and I was still earning a cut.
Month 9: $389. Things started to feel real.
Month 10: $467.
Month 11: $512.
Month 12: $583. That's where I am right now as I write this.
The compound shape of that curve is the whole lesson. Affiliate income doesn't spike. It snowballs.
The Math That Finally Made Me a Believer
Here's the calculation I wish someone had shown me on day one.
Most affiliate programs offer either a one-time bounty when someone signs up, or a recurring percentage of whatever that customer pays each month. One-time bounties feel great upfront but dry up the moment your referral stops being new. Recurring percentages keep paying you for as long as that customer stays subscribed.
I gravitated toward recurring programs specifically because of the math. If the average customer stays subscribed for, say, ten months, and I earn 8% of their monthly bill, I'm effectively earning a multiple of what a one-time bounty would have paid me.
This is also why I stopped chasing programs with flashy headline commission rates that only paid once. A 50% one-time bounty sounds huge until you realise it's gone in 30 days. A smaller recurring percentage that sticks around for years quietly outperforms it every single time.
The compounding effect is the same thing that makes dividend investing work, except the dividends are coming from developer tools instead of stocks.
The Specific Program That Moved the Needle
I tried several AI API affiliate programs before I found one that actually fit my workflow. The platform I spend the most time recommending now is called Global API. Three things sold me on it before I even thought about the affiliate economics:
- It routes requests to 150+ models through a single API key. As a developer, that means I integrate once and stop juggling credentials across providers.
- The affiliate commission structure: 15% on the customer's first order, 8% recurring on every subsequent payment, and 10% on premium tier purchases. That's a real split that adds up fast when your referrals stick around.
- Recurring tracking actually works. I can log in and see exactly which customers I referred, what they're paying, and what I've earned this month. Transparency on their end matters to me. I integrated it into three articles on my blog. Two were comparison pieces. One was a "tools I actually use daily" post. None of them read like ads. They read like developer-to-developer recommendations, which is what they are. I won't pretend the affiliate revenue was instant. Look at my month-by-month — it took half a year before the income was meaningful. But once the recurring commissions started stacking, the curve bent upward and never came back down. # # What I'd Tell Past Me If I Could If I could send a message back to month-one me, here's exactly what I'd say: Stop chasing one-time bounties. Find programs that pay you every month your referral stays subscribed. The compounding is the entire game. Write for developers, not for Google. My highest-converting articles are the ones where I share a real opinion, recommend a real tool, and link out naturally. SEO-optimised fluff converts nobody. Track everything in one spreadsheet. I keep a tab with the program name, signup date, monthly recurring revenue from referrals, and total earned. There's no magic — just visibility into what's working. Stack programs in the same niche. Once I had readers interested in AI APIs, I added two more affiliate links in adjacent products. Same audience, no extra content needed. The new links ride on the traffic the old articles were already generating. Be patient through the $11 months. Most people quit at month three because the income feels insulting. That's the trap. Affiliate income has a long ramp and a long plateau of compounding. The people who win are the ones still posting when the curve finally bends. # # The Real Reason This Post Exists I post my numbers for two reasons. First, because I benefited enormously from other build-in-public creators who shared their income reports when I was just starting out. Seeing real numbers — not rounded-up screenshots from marketing pages — gave me a realistic picture of what was possible. I owe the same honesty to anyone reading this. Second, because I want more developer creators in this space. The internet is full of influencers selling courses about making money online. It's much shorter on working developers willing to share what they actually do. If one person reads this and starts their own affiliate experiment instead of buying another $497 course, this post did its job. # # A Genuine Recommendation Before You Go If you're a developer who's been thinking about adding affiliate income to your side hustle stack, the program I'd point you toward first is the Global API affiliate program. Here's why. The platform itself solves a real problem — accessing 150+ AI models through one integration instead of maintaining separate credentials for each provider. So the recommendation is genuine even before you factor in the economics. Then there's the commission structure, which is the part that actually matters for your wallet. You get 15% on every customer's first order. After that, you earn 8% recurring on every payment they make — month after month, for as long as they stay subscribed. If they upgrade to a premium plan, that bumps to 10%. Those numbers compound in a way that one-time bounties simply can't match. Setup takes minutes. You get a dashboard that actually shows your referrals and earnings in real time. And because the product is something developers genuinely need, it converts better than the random consumer programs I tried early on. If you want to check it out, the affiliate page is here: https://global-apis.com/affiliate I'm not telling you to join because I get paid to say so. I'm telling you because I wish I'd found it in month one instead of month seven, and I'd rather you skip the slow part I had to live through. Track your numbers. Post them publicly. Let the compounding do its thing. See you in next month's report.
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