The $0 Bug That Cost Us $1,800 in API Calls

Short summary

An engineering team discovered a $1,847/month silent cost bug—their autosave feature triggered expensive API calls every 30 seconds per user with zero error alerts. The fix required cost attribution at feature, service, and user levels, not just total spending tracking. This revealed unprofitable pricing tiers and enabled data-driven repricing.

• •Silent cost bug: autosave feature triggered batch reports every 30s ($1,847/mo) with zero error alerts
• •Solution: implement feature-level cost attribution to answer 'what caused it,' not just 'how much'
• •Business impact: identified unprofitable Growth and Enterprise tiers, enabled repricing without feature cuts

Generated with AI, which can make mistakes.