For the complete documentation index, see llms.txt.
15 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
EOQ Calculatoreoq-calculator
Economic Order Quantity that minimizes combined ordering and holding cost, with orders/year, cycle length, and reorder point.
1cr · v2026-04-22
Print Cost Calculatorprint-cost-calculator
Calculate ink, toner, paper, print job, monthly, and yearly printing costs.
1cr · v2026-04-22
Customer Experience
CSAT Score Calculatorcsat-score-calculator
Calculate customer satisfaction percentage, average rating and rating distribution from 1–5 response counts.
1cr · v2026-04-22
Human Resources
Bradford Factor Calculatorbradford-factor-calculator
Calculate an attendance Bradford Factor from absence spells and total absent days.
1cr · v2026-04-22
Compa-Ratio Calculatorcompa-ratio-calculator
Compare salary with a pay-range midpoint and calculate range penetration.
1cr · v2026-04-22
Employee Turnover Rate Calculatoremployee-turnover-rate-calculator
Calculate period and annualized employee turnover from average headcount and separations.
1cr · v2026-04-22
FTE Calculatorfte-calculator
Convert full-time and part-time headcount and hours into full-time equivalents.
1cr · v2026-04-22
Operations
Billable Utilization Calculatorbillable-utilization-calculator
Calculate billable utilization, target gap, revenue and gross margin for a work period.
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
Reliability
MTBF & MTTR Calculatormtbf-mttr-calculator
Calculate MTBF, MTTR, availability and failure rate from operational totals or direct metrics.
1cr · v2026-04-22
Research
Survey Response Rate Calculatorsurvey-response-rate-calculator
Calculate complete and overall survey response rates, completion rate and approximate margin of error.
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
Social Media
Follower Growth Rate Calculatorfollower-growth-rate-calculator
Measure absolute, percentage, compound and annualized follower growth and estimate time to a goal.
1cr · v2026-04-22