{"name":"unit-economics-calculator","description":"Calculates SaaS unit economics: LTV, LTV to CAC, and CAC payback period. Computes monthly gross profit, estimated customer lifetime, LTV, LTV/CAC, CAC payback months, score, drivers, and recommendation. Use it as a unit economics calculator API or an ARPU gross margin churn calculator.","price":"$0.01","method":"POST","input_schema":{"properties":{"arpu":{"type":"number","description":"Average monthly revenue per user/account."},"gross_margin_pct":{"type":"number","description":"Gross margin percent."},"monthly_churn_pct":{"type":"number","description":"Monthly customer churn percent."},"cac":{"type":"number","description":"Customer acquisition cost."},"payback_target_months":{"type":"number","description":"Target CAC payback months. Default 12."}},"required":["arpu","gross_margin_pct","monthly_churn_pct","cac"]},"input_example":{"arpu":240,"gross_margin_pct":82,"monthly_churn_pct":2.5,"cac":950,"payback_target_months":12},"output_example":{"calculator":"unit-economics-calculator","score":74.2,"grade":"strong","recommendation":"Proceed with standard diligence and covenant checks.","metrics":{"ltv":7872,"ltv_cac_ratio":8.286,"payback_months":4.8},"drivers":[{"name":"debt_service_coverage","score":83.6,"weight":0.3,"note":"1.42x DSCR"}],"warnings":[],"source":"deterministic in-process finance calculator; no upstream API"},"x402_payment_required":true,"x402_facilitator":"https://api.cdp.coinbase.com/platform/v2/x402"}