Last month I hit a wall. I'd been running a small dev newsletter for about eight months, growing it slowly, and I was finally at the point where I wanted to monetize it without turning it into a spammy mess. Affiliate income felt like the right move — but I had no idea how much money was actually on the table with AI API programs specifically.
So I did what I always do. I opened a spreadsheet, grabbed coffee, and went deep. Here's the unfiltered version of what I found.
The Honest Backstory: How I Got Here
Let me be real with you. I wasn't always someone who thought much about passive income. I spent most of my career writing code for other people's companies, building products that made other people rich while I got a biweekly check. About a year ago I started documenting what I was learning about AI tooling on Twitter and then on a small Substack. Nothing fancy. Just honest posts about what I was building, what was breaking, and what I was spending money on.
The "build in public" thing happened organically. I wasn't trying to become some kind of influencer. I just shared my actual numbers — how much I spent on API calls each month, what I was building, what failed, what worked. People seemed to like the transparency. My audience grew.
Then a reader emailed me and asked if I had an affiliate link for the AI APIs I was always recommending. I didn't. That email sent me down a rabbit hole that turned into this entire post.
Why AI API Affiliate Programs Caught My Eye
Here's my real numbers situation: my newsletter is small. I'm not at six figures in revenue. I'm not even close. I share this because the whole build in public thing only works if you're actually being honest, and I think too many people in the affiliate marketing space make it sound like you need a massive audience to start making money.
The reason I got excited about AI API affiliate programs specifically is the recurring revenue model. Most affiliate programs I've looked at pay you once. Someone clicks your link, they buy a $500 course, you get $50, and that's the end of the relationship. Done. You start from scratch with the next person.
AI API affiliate programs are different because developers don't buy once — they subscribe. They use API access every single month to run their apps, their side projects, their client work. As long as they stay subscribed, you keep earning.
This is the part that changed my math completely. A single developer paying $50 a month for API access could mean hundreds of dollars per year in commission, not just a one-time $10 payout. That compounding effect is
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