My $4,200/Month Affiliate Side Hustle: How I Started Earning Recurring Revenue by Promoting AI APIs
Dev.to / 6/19/2026
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Key Points
- The author describes shifting from relying on a single “killer app” to building a diversified portfolio of small, recurring revenue streams as an indie maker.
- They report adding an AI API affiliate program to their revenue stack, which they claim now generates about $4,200/month in passive recurring commissions.
- The article explains how they model earnings using commission tiers (initial percentage plus ongoing renewal rates that change with upgrades), including example calculations for different plan levels.
- The author emphasizes that recurring revenue is more stable than chasing new customers each month and frames the strategy as a repeatable approach to adding another ~$500/month stream.
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