For the complete documentation index, see llms.txt.
5 endpoints

Business API

Same bearer token, same credit pool, same JSON envelope as every other endpoint — drop them into apps, sites, workflows, or agents without rebuilding formulas, validation, or docs.

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Cost Calculators
Employee Cost Calculatoremployee-cost-calculator
True employer cost of a hire: salary plus payroll taxes, benefits, PTO, equipment, training, and recruiting.
1cr · v2026-04-22
Print Cost Calculatorprint-cost-calculator
Calculate ink, toner, paper, print job, monthly, and yearly printing costs.
1cr · v2026-04-22
Productivity
Revenue Per Employee Calculatorrevenue-per-employee-calculator
Calculate revenue per employee for a period and annualized basis.
1cr · v2026-04-22
Profitability
Contribution Margin Calculatorcontribution-margin-calculator
Calculate unit and total contribution margin, ratio, profit, and break-even units.
1cr · v2026-04-22
Small Business Calculators
Lemonade Stand Calculatorlemonade-stand-calculator
Calculate batch cost, cup cost, break-even cups, and daily lemonade stand profit.
1cr · v2026-04-22