Markup and margin, break-even, discount stacking, tiers, price rounding, bundles, MRR and fee-inclusive pricing.
payments ON MAINNET (real money) · 9 live endpoints
| Endpoint | Price | What it answers |
|---|---|---|
GET /break-even | $0.02 | Break-even units and revenue from fixed costs, price and variable cost per unit, with an optional profit target. |
GET /bundle-price | $0.02 | Bundle price, savings and bundle margin from item prices plus either a bundle discount percent or a set bundle price. |
GET /discount-stack | $0.02 | Final price and effective discount when percentage discounts are stacked one after another, versus simply adding them. |
GET /fee-inclusive | $0.02 | Price to charge so you net a target after a percentage fee plus a fixed fee, with fees you supply. No fee table built in. |
GET /markup-margin | $0.02 | Convert markup to margin and back, and get the selling price, from a cost plus one of markup, margin or price. |
GET /price-rounding | $0.02 | Round a price to a charm ending such as .99 or .95, or to steps like 9 at the end of tens, up, down or nearest. |
GET /price-tiers | $0.02 | Total and average unit price for a quantity under graduated or volume tiers given as minQty:unitPrice pairs. |
GET /subscription | $0.02 | MRR, ARR, customer lifetime, annualised churn and LTV from customers, ARPU and monthly churn, with optional CAC payback. |
GET /tax-split | $0.02 | Split a tax-inclusive price into net and tax, or add tax to a net price, for a sales tax or VAT rate you supply. |
GET /catalog returns this list as JSON. Activity hub · uptime.
Pricing arithmetic computed locally from the inputs given, provided as is. Fees, tax rates and costs are inputs you supply; no marketplace fee schedule or tax rate is built in. Not tax, legal, accounting or financial advice. Every paid response carries a disclaimer field.