Project detail · Finance & Business
KostLens · All your AI spend in one place, per customer
Track AI API costs across 54 providers and tools in one unified dashboard.
kostlens.com

Try live demo Live checked6 days ago
- Open source
- Yes
AnalyticsDeveloper ToolFinanceProductivity“Cost per customer and per feature”“54 providers”“All your AI spend in one place”
Tech Profile
- Built by
- Solo maker
- Time
- A weekend
- Built with AI
- Cursor
- Open source
- Yes
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Source
I nearly cut my free plan retention out of fear. I measured first, and the change did nothing. Backstory first, because that's the honest order. I pay for OpenAI, Anthropic and Cursor. Every one has its own dashboard, none of them agree with each other, and none agree with the invoice. What I actually wanted was boring: what did this feature cost last month, and which customers are expensive to serve. No provider console answers that, because they bill by organisation and API key, not by my
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