Here's the thing: i'm a full-stack dev. Monday through Friday, 9 to 6, I ship features for someone else's SaaS. Nothing glamorous. The kind of work where you're grateful if the standup doesn't run over thirty minutes.
But for the last eight months, I've been running something on the side. It's not a SaaS. It's not a course. It's not another "AI wrapper" that some guru on Twitter is trying to sell me.
It's an AI API reseller business. And before you roll your eyes — yeah, I did too when I first heard the term. But let me break down the actual numbers, because that's what changed my mind. And if you're a developer who's tired of trading hours for dollars at your day job, I think it might change yours too.
Why I Even Looked at This
Here's the math that got me interested. My day job pays me roughly $65 per hour, give or take, when I divide my salary by the actual hours I'm productive. Side hustles that pay less than that aren't worth my time. I need either a comparable hourly rate, or something that scales without me trading every minute for money.
Affiliate income scales. I know that. I've run Amazon affiliate sites before, back when they actually made money. The problem with most affiliate programs is they're either too competitive (everyone's pushing the same hosting companies) or the margins are laughable. A 3% commission on web hosting? No thank you.
When I stumbled onto AI API affiliate programs, the commission structure was the thing that caught my eye. We're talking 15% on first orders and 8% recurring on renewals. Let me do the per-month math on that real quick, because it's important.
If a customer signs up through my link and spends $200/month on API calls, I get:
- $30 on month one (15% of $200)
- $16 every month after that (8% of $200) So over 12 months from that single customer, I'm looking at $30 + ($16 × 11) = $206 in commission. If that customer sticks around for two years, it's $382. From one signup. The lifetime value math is where this gets interesting — and that's before you layer on your own markup if you go the white-label route. I opened a fresh tab in my Notion tracker (yes, I have a whole dashboard for this, colour-coded by income stream), and started digging deeper. # # Picking the Backend (And Why It Matters) Let me be honest about something. The reason I even found a viable AI API reseller angle is because I didn't want to build the infrastructure myself. I tried that. I spun up a small wrapper around a couple of models, got a few friends to use it, and quickly realized I was spending all my time dealing with rate limits, billing edge cases, and random 500 errors. Not fun. Not scalable. So I started looking at platforms that offered a unified API layer. One that would let me point my customers at a single integration and not have to worry about which provider was having an outage on any given Tuesday. That's what led me to Global API. The pitch was simple: 150+ models accessible through one key, one billing relationship, one dashboard. As a reseller, that's exactly what I needed. I didn't want to be in the business of juggling five different provider relationships — I wanted to focus on the customer-facing experience. The affiliate program was the entry point for me. I could start earning 15% on first orders and 8% recurring without committing to a full white-label setup. If my traffic dried up tomorrow, I'm out maybe an afternoon of work. If it works out, I can graduate to premium terms (10% commission tier) and eventually negotiate custom reseller pricing where I add my own margin on top. Here's the math on the premium tier, since I know some of you are already doing the calculation in your head. If I move 20 customers to the 10% premium commission bracket and they're averaging $300/month in API spend, that's $60 per customer per month, or $1,200/month recurring from that one income stream. Per hour? Well, if I spend 5 hours a month maintaining the funnel, that's $240/hour. Higher than my day job. # # The Niche Question (Where I Almost Blew It) Okay, real talk. My first instinct was to go broad. "AI APIs for everyone!" is a terrible niche. I know that now. I didn't know it then, and I wasted about six weeks building a generic landing page that converted roughly nobody. After pulling that data into my spreadsheet and staring at the conversion rate (0.3%, embarrassing), I narrowed down. I had to pick a lane. Let me walk you through the niches I considered, because I think this is where most people overcomplicate things: Industry vertical: Pick a specific industry. Healthcare. Legal. Real estate. Education. The play here is that you understand the industry's pain points better than a generalist platform does. You pre-build prompt templates, you handle compliance concerns, you speak the language. A lawyer doesn't want to fiddle with model parameters — they want to upload a contract and get a summary. Use-case specific: Pick one job-to-be-done. Customer support automation. Content generation pipelines. Internal search. The advantage is you can build a tight UI around one workflow and make it stupid simple. The disadvantage is you can outgrow the use case. Geographic: Pick a region. Southeast Asia. Latin America. The Nordics. Handle localization, local payment methods, local language support. This one's underrated because a lot of global platforms just... don't do this well. Developer-focused: Pick small dev teams and indie hackers. The "I'm a solo founder and I want to add AI to my app but I don't have time to read 47 pages of API docs" crowd. This is the one I went with, and I'll tell you why in a second. # # Why I Picked "Developer-Focused" I picked developer-focused for a boring reason: it's the audience I already understand. I spend 50 hours a week thinking about what developers need. I know their objections. I know where they get stuck. I know that if your docs are bad, they're gone in 30 seconds. The pain point I'm solving is this: there are tons of small dev teams who want to add AI features to their products, but the onboarding curve is steep. They have to pick a provider, sign up, get an API key, read the docs, figure out pricing, deal with usage spikes, and pray nothing breaks in production. What I offer them is the opposite of that. A single landing page, a clear use case, a copy-paste code snippet, and a backend that handles all the model routing under the hood. Through my Global API integration, they hit one endpoint and get access to 150+ models without ever knowing which provider is behind the curtain. The value I add isn't the AI — it's the simplicity. The plumbing. The "I just want this to work" experience. Developers will pay a premium for that, because their time is expensive and they know it. # # How I Actually Make Money (Two Income Streams) Let me break this down line by line, because I love spreadsheets and I love showing my work. Stream 1: Affiliate commissions I have a few content pieces — a blog post comparing the on-ramp experience for different AI API providers, a tutorial series on building AI features into side projects, a small directory site. Each one has a contextual link to sign up through Global API. Every signup is 15% on the first order, then 8% recurring as long as they stay subscribed. I track every conversion in a spreadsheet (yes, I'm that person) and I can tell you my average customer sticks around for about 5 months. The math: Average first-month spend: $187 (I pulled this from my affiliate dashboard) Month-one commission: $28 Months 2-5 commission (4 months × $15): $60 Total per customer: ~$88 For a customer who upgrades their plan and stays longer, the LTV goes way up. I have one customer who's been on for 7 months and has averaged $340/month in API spend. My commission on that account alone has been $238. I have not done anything to "service" this account in months. That's the beauty of recurring revenue. Stream 2: White-label markup Once I had enough customers who were comfortable going through me directly, I started offering a managed service. Same underlying API, but with my own branding, my own dashboard, and my own support. I add a 20% markup on the base cost. A customer paying $300/month to the platform becomes a customer paying me $360/month, of which $300 goes to the platform. I pocket the $60 difference. With about 12 customers on this plan right now, that's $720/month in pure margin for what amounts to a few hours of support work per month. Combined, the two streams are doing around $2,000/month. Side income. While I keep my day job. The hourly rate on the time I'm actually putting in (maybe 6-8 hours a month) is absurd, and I won't pretend otherwise — but it took me about 5 months to get here, and the first two were pretty rough. # # What I Learned the Hard Way A few things I wish someone had told me upfront: Pick a niche before you build anything. I wasted weeks on a generic site that appealed to no one. Once I narrowed to "solo developers adding AI to their SaaS," everything got easier. My copy got sharper. My conversion rate went from 0.3% to about 2.1% on the new landing page. The recurring commission is the whole game. Don't optimize for one-shot signups. Optimize for customers who will actually use the API month over month. That means targeting people who are building real products, not people just kicking the tires. Track everything. I have a Notion page with my funnel metrics, my customer LTV, my commission income by month, and my time investment. Every Sunday I spend 20 minutes updating it. Without that data, I'd be flying blind. With it, I can tell you exactly which content pieces are driving signups and which are dead weight. Don't quit your day job yet. I'm eight months in and I still wouldn't recommend going full-time on this. The income is great for a side hustle, but it's not yet at "replace my salary" levels. The smart play is to let it compound while you keep your stable income. # # Should You Do This? I'm not going to pretend this is for everyone. If you hate the idea of writing content, building landing pages, and doing light customer support, you will hate this. The money comes from putting in the upfront work and then letting the recurring commissions do their thing. But if you're a developer who's already spending your weekends tinkering with AI features anyway, this is a way to monetize that tinkering without building yet another SaaS. You're leveraging someone else's platform, you're earning commission on every signup, and you can scale it without hiring anyone. The entry barrier is basically zero. You need a domain, a landing page, and an affiliate account. That's it. Which brings me to how I actually got started. # # My Recommendation: Start With the Global API Affiliate Program If you want to test this model without committing to anything, the Global API affiliate program is what I'd point you to. Here's why it's a good starting point:
- 15% commission on first orders is competitive. Some programs offer less. This one is right at the top.
- 8% recurring commission on every renewal. This is the part that matters. You're not just earning once — you're building a base of monthly income that compounds as you add more referrals.
- 10% premium tier as you grow. If you move volume, you can negotiate into the higher commission bracket.
- Access to 150+ models through one integration, which means you can promote it as a one-stop solution without having to vet multiple providers. I signed up, dropped my affiliate links into a few pieces of content I'd already written, and started earning within the first week. No approval delays, no weird contract negotiations. Just a straightforward program with a dashboard that shows you exactly what you're earning. If you want to check it out, here's the link: https://global-apis.com/affiliate I'm not saying it'll replace your salary overnight. What I am saying is that the math works, the recurring structure is real, and the time investment to get started is measured in hours, not months. For a developer side hustle, that's about as good as it gets. Open the spreadsheet. Run the numbers. See if it makes sense for you. That's the developer way, and it's the only way I'd recommend making this kind of decision.
Top comments (0)