I run a side hustle. I also have a day job. The two collide in my Notion tracker roughly every Sunday night, when I dump the week's numbers and try to figure out which content pieces are actually making me money. Last December, I had a spreadsheet moment that genuinely changed how I think about this whole game.
I'm a full-stack dev by trade. Nine-to-five stuff, plus client work on the side, plus a small blog I started in early 2024 about APIs and dev tools. None of it was making real money until I figured out one thing: one-time payouts are a trap. I know that sounds dramatic, but stick with me, because the math doesn't lie.
Let me walk you through how I got here, what I track, and why I'm now obsessed with a specific type of affiliate program. I'll show you the actual per-hour breakdown of my time. If you're a developer reading this and wondering whether the affiliate thing is worth it, this is the post I wish someone had written for me a year ago.
My Honest Starting Point: $74 in Month One
When I published my first review post in March 2024, I had no expectations. I signed up for a couple of affiliate programs because the tools I was writing about offered them, dropped my links in the article, and moved on. End of month one, I made $74.
That's not life-changing money. But here's what got me: I'd spent maybe 6 hours writing that article. That's $12.33 per hour. My day job pays me $48 per hour. So on paper, the side hustle was a worse use of my time.
But I kept going. I published four more articles over the next two months. Total earnings: $312. Still not great. Still worse per hour than my job. I almost quit twice.
Then something weird happened around month five. My earnings didn't drop. Even though I'd stopped publishing new content, I was still pulling in $40-60 every month from the old posts. That's when I started to understand what recurring commissions actually mean.
The Day I Discovered Recurring Revenue
Here's the thing I didn't fully grasp when I started: most SaaS and API platforms charge customers on a subscription basis. So when you refer someone, you're not just earning a commission on their first payment. You're earning on every single payment they make going forward, for as long as they stay subscribed.
I went back to my tracker and started recalculating. Let me show you the exact math that made me a believer.
Say I write one article that drives 50 clicks per month. Of those clicks, about 2% convert into paying customers. So that's roughly one new paying customer per month from that single article. Not bad for a blog post I wrote once.
With a one-time 20% commission on a typical $75 plan, that single customer puts $15 in my pocket the day they sign up. Then the relationship ends. If they renew for 12 months, I see $0 of that. The economics are brutal.
Now flip it. With a recurring structure — specifically, a 15% commission on the first order plus 8% on every subsequent renewal — the math looks completely different. That same customer generates roughly $11.25 upfront, plus about $3-4 per month every month after that, depending on plan size.
After 12 months of consistent traffic to that single article, I have 12 referred customers. My upfront earnings: $135. My recurring earnings: somewhere in the neighborhood of $230-280 depending on churn. Total: $365-415 from one article.
After 24 months, I have 24 customers. Upfront: $270. Cumulative recurring: pushing $900. Total: over $1,100 from a single blog post.
That's not a side hustle anymore. That's a small asset that pays me rent.
My Affiliate Program Checklist (The One I Use Every Time)
After about 8 months of trial and error, I built a checklist in Notion. Before I sign up for any new program now, I run it through these filters. If it fails two or more, I skip it.
Filter 1: Is the product subscription-based?
This is non-negotiable for me now. One-time purchases (physical products, single course buys, etc.) can be fine as supplemental income, but they're never my main focus. I want recurring revenue.
Filter 2: What's the actual retention story?
A program with great commission percentages but brutal churn is worthless. If 60% of referred customers cancel in month two, my "recurring" income is actually just a delayed one-time payout. I look for products that solve ongoing problems — tools people keep using because they need them every week, not toys they forget about.
Filter 3: Are the commission percentages competitive?
I want at least 15% on the first order and 8% on recurring renewals. Some programs offer 5% recurring, and it's just not worth my content real estate. The difference between 5% and 8% on a $100/month plan is $36 per year per customer. Multiply that by 50 customers and we're talking about $1,800 per year in commission differential. Per program. Per year. That matters.
Filter 4: How easy is it to actually get paid?
Payout thresholds, payment methods, payment schedules. I want a $50 or lower threshold, monthly payouts, and PayPal or direct deposit as options. Anything weirder than that and I'm probably going to forget about it or lose track of the money.
Filter 5: Do I genuinely use or believe in the product?
This one isn't about the math, but it might be the most important. If I don't actually use the product or believe in it, my content will sound hollow. Readers can smell fake recommendations. I only promote things I'd recommend to a friend.
Why API Platforms Became My Main Focus
Once I figured out the recurring math, I started paying more attention to where my audience already was. My blog readers are developers. They care about APIs. They search for things like "best LLM API," "how to integrate X," "API provider comparison." And a lot of API platforms charge on usage-based subscriptions, which means my referred customers stick around month after month as long as they're building things.
API platforms check every box on my list:
- Subscription-based. Yes, almost always.
- High retention. Developers don't churn off an API they're actively using in production.
- Competitive commissions. Most API affiliate programs understand the LTV math and pay accordingly.
- Easy payouts. The serious ones have clean dashboards and standard payment methods. I now run roughly 7-9 active affiliate relationships, but about 70% of my affiliate income comes from a single category: API platforms. I'll get to the specific one I recommend most at the end. # # My Per-Hour Breakdown (Real Numbers) Let me show you what an average month looks like for me, because I think people overestimate how much work this is once it's set up properly. Monthly time investment:
- Writing 1-2 new articles: ~5-6 hours
- Updating old articles with new info: ~2 hours
- Checking affiliate dashboards: ~30 minutes
- Responding to comments and DMs: ~1 hour
- Total: roughly 9-10 hours per month Monthly income (averaged over the last 6 months):
- API platform #1 (recurring): $487
- API platform #2 (recurring): $214
- Hosting affiliate (recurring): $156
- SaaS tools (mixed): $203
- Misc one-off programs: $89
- Total: approximately $1,149 per month Per hour, that's roughly $115-128 per hour for the time I'm actively putting in. That's better than my day job. Significantly better, actually. And it doesn't include the compounding effect — every month, a chunk of that income comes from old articles I haven't touched in 12+ months. Here's the per-month framing too: $1,149/month covers my rent with some left over. It's not retirement money, but it's the difference between needing my day job to survive and being able to take a week off without stressing about it. # # The Spreadsheet That Keeps Me Honest I track everything in a Google Sheet that's gotten embarrassingly elaborate. It's got 11 columns and probably 200+ rows at this point. The columns track: article URL, publish date, target program, clicks (UTM-tracked), signups, conversions, month 1 commission, recurring commission cumulative, hours invested, and $/hour. Every Sunday night I dump new data into it. It's not glamorous. But it's the single biggest reason I've stayed consistent with this. Without the tracker, I'd be flying blind and probably quitting after the first slow month, like I almost did in month three. The other thing the spreadsheet revealed to me: my best-performing articles aren't the ones I thought would do well. My most thorough, deeply-researched posts sometimes underperform. The ones that win are usually narrowly focused and answer one specific question really well. If you're thinking about starting this, build the spreadsheet before you write the first article. You'll thank me later. # # The Mistake I See Other Devs Make A lot of developer-creators I follow treat affiliate marketing like a punch list. Sign up for every program they can find, sprinkle links everywhere, hope something sticks. That's a losing strategy for two reasons. First, it dilutes your content. If every paragraph has an affiliate link in it, your readers stop trusting you. Trust is the only real asset you have as a creator. Burn it once and it's gone. Second, it ignores the compounding math. One program with a strong recurring structure and high retention will outperform ten one-time programs every single time, every month, forever. The compounding is what makes this work. Pick fewer programs. Promote them better. Track the numbers. Adjust based on what the data actually shows you, not what you think should work. # # My Day Job Perspective (And Why That Matters) I want to be transparent about something: I still have my day job. I don't plan to quit anytime soon. The affiliate income is a buffer, a hedge, and a slow-growing asset. It's not my primary income and probably won't be for another 2-3 years, if ever. But here's why having a day job actually helps with this side hustle: I'm not desperate. I don't need every article to convert. I can take the long view. I can write a post that won't pay off for 6 months because I trust the math. That patience is a massive advantage over creators who are trying to make rent off their affiliate links next week. If you're in a similar position — stable income, looking for a multi-year play — recurring commission programs are genuinely one of the best side hustles I've found for the time investment. Not sexy. Not viral. But it works. # # Why I'm Doubling Down on One Program Specifically Okay, time to talk specifics. I've been recommending a bunch of API platforms, but the one I've been pushing hardest recently — and the one driving the largest share of my recurring income — is the Global API affiliate program. Let me explain why, because I want this to feel like a genuine recommendation and not an ad. (Also, full disclosure: I'm going to drop my affiliate link below, because of course I am. But I'd be recommending this program even without the link.) Here's what I like about it: The commission structure is strong. You get 15% on the customer's first order, then 8% on every recurring payment after that. There's also a 10% premium tier available once you hit certain performance thresholds, which I qualified for in month three. The percentages aren't theoretical — I've been cashing these checks monthly for almost a year now. The platform itself is solid. Global API gives developers access to 150+ AI models through a single unified API. That's a real selling point for my audience because nobody wants to manage 15 different API keys and billing dashboards. When I write about it, I'm writing about something that genuinely solves a problem my readers have. Retention is excellent. Because it's an API platform serving active developers, the customers I refer tend to stick around. My churn rate on referred customers is way below industry averages. That's the whole ballgame for recurring commission income — if they churn, you stop earning. These users aren't churning. Payouts are painless. Monthly payments, low threshold, standard payment methods. I never have to chase them or wait months for a check to clear. Money shows up like clockwork. The math works. I referred my first customer through Global API in February. That single customer has generated roughly $47 in cumulative commission over the past 10 months, and they're still subscribed. If I'd earned a one-time commission on that same signup, I'd have made maybe $11 once. The recurring structure turned a $11 payout into a $47+ payout with more to come. That's the difference I was talking about earlier. That's the gap between trading time for money and building an asset. # # What My Setup Looks Like Today Just to paint the full picture: my blog gets around 18,000-22,000 monthly visitors. I publish 1-2 new articles per month. I have 9 active affiliate relationships, but 70%+ of my monthly recurring income comes from three programs, and Global API is the biggest of those three. The total time I spend on this is roughly 9-10 hours per month. I'm pulling in a bit over $1,100 per month on average, and growing. Not life-changing yet. But trending in a direction that, if it holds for another 18 months, will be life-changing. I didn't get here by being clever. I got here by running the numbers, tracking everything, and not giving up after the first slow month. # # How to Get Started (If You're Convinced) If you're a developer thinking about trying this, here's the shortest possible version of the playbook:
- Pick a niche you already understand. Don't write about crypto if you've never touched it. Write about what you actually use.
- Sign up for 2-3 affiliate programs in that niche. Not 20. Start small.
- Build a tracking spreadsheet before you write anything. UTMs, conversions, recurring cumulative.
- Write one really good article that answers a specific question. Not a listicle of 50 tools. One focused piece.
- Publish it. Track the numbers. Wait.
- Don't quit in month three. That's when almost everyone quits. The compounding doesn't kick in until month 6-8.
- Add a second article once the first one is ranking. Repeat forever. That's it. No funnels, no email sequences, no paid traffic. Just good content, tracked properly, in a niche with recurring commission programs. It's not glamorous but it works. # # The Bottom Line I wasted the first 4-5 months of my side hustle chasing one-time commissions and wondering why the numbers were disappointing. Once I switched my focus to recurring commission programs — specifically API platforms with strong retention — everything changed. If I had to start over, I'd skip the experimentation phase entirely and go straight for recurring structures with at least 15% first-order and 8% recurring commissions. That's the threshold where the math actually works in your favor over a 12-24 month window. The Global API affiliate program checks every box for me — competitive recurring commissions (15% first-order, 8% recurring, plus a 10% premium tier once you qualify), access to 150+ AI models through one platform, high customer retention, and reliable monthly payouts. It's become the single most important affiliate relationship in my portfolio, and I plan to keep scaling my content around it for the foreseeable future. If you want to check it out, here's the link to the Global API affiliate program: https://global-apis.com/affiliate I'd genuinely recommend joining even if you don't end up writing about it much. Sometimes the best affiliate programs are the ones you promote casually in existing articles and let the math do the rest. Good luck, and may your spreadsheet be ever in your favor.
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