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Passive Income Strategy

7 APIs That Pay You Recurring Commissions

True passive income isn't about working once and getting paid once. It's about working once and getting paid forever. Here is why you need to switch to recurring affiliate models.

❌ One-Time Payouts (CPA)

You refer a customer to a tool like Bluehost. They pay you $65 once. If that customer stays for 5 years, you still only get $65. You constantly need to find new customers to maintain your income.

✅ Recurring Revenue (MRR)

You refer a customer to an API like HubSpot. They pay you 30% every single month. If that customer stays for 5 years, you get paid 60 times. Your income compounds over time.

The 7 Best Recurring API Programs

We selected these because they are developer-focused, highly reliable, and offer "Lifetime" or long-term recurring commissions.

1. Rewardful API

30% Lifetime

Rewardful is the affiliate system for Stripe. It allows developers to build affiliate programs into their SaaS with just a few lines of code. It's incredibly sticky because once a SaaS installs it, they rarely leave.

💡 Developer Angle: Write a tutorial on "How to add an affiliate program to your Next.js SaaS" and link to Rewardful.
Join Program →

2. HubSpot API

30% Recurring

HubSpot isn't just a CRM; it's a massive platform with a robust API. Their affiliate program allows you to earn 30% recurring revenue for up to 1 year. Given that enterprise plans cost $3,000/mo, this is huge.

💡 Developer Angle: Build a free "Lead Capture" plugin or integration that syncs data to HubSpot via API.
Join Program →

3. Kinsta (Hosting API)

$500 + 10% Lifetime

Kinsta provides a premium API for managing WordPress sites. Their commission model is arguably the best in the industry: a massive upfront bonus plus a lifetime recurring commission.

💡 Developer Angle: Target agencies with content about "Automating WordPress Deployments" using the Kinsta API.
Join Program →

4. APILayer

20% Recurring

APILayer is a marketplace of essential developer utility APIs like Ipstack (Geolocation), Fixer (Currency), and Numverify. Referring a developer here means you earn on ANY API subscription they buy.

💡 Developer Angle: Create a "Currency Converter" or "User Location" demo app and link the API source.
Join Program →

5. ScrapingBee

25% Lifetime

Web scraping is a massive industry. ScrapingBee provides an API that handles headless browsers and proxy rotation. Developers burn through credits quickly, meaning high monthly bills and high commissions for you.

💡 Developer Angle: Write a guide on "How to Scrape Single Page Applications (SPAs) without getting blocked."
Join Program →

6. ConvertKit API

30% Lifetime

Now known as Kit, their API is widely used by creators to build custom newsletter flows. They famously pay 30% recurring commissions for the lifetime of the account.

💡 Developer Angle: Build a "Custom Newsletter Signup Form" generator for React/Vue developers.
Join Program →

7. ActiveCampaign

20-30% Recurring

A powerhouse in marketing automation. Their API is complex and powerful, used by serious businesses. As your referred clients grow their lists, their bill increases, and so does your payout.

💡 Developer Angle: Create tutorials on "Advanced Marketing Automation using Python and ActiveCampaign."
Join Program →