calculators

{
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  "name": "calculators",
  "operator": "(unclaimed - source: registry-official · publisher: com.calcfleet)",
  "description": "Tested financial & practical calculators as free, no-auth MCP tools for AI agents.",
  "depth": 2,
  "status": "unclaimed",
  "last_crawled": "2026-09-24",
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    "invoice-parsing",
    "order-tracking"
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  "protocols": {
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    "a2a": null
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  "pricing": null,
  "regions": [
    "global"
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  "languages": [
    "en"
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    "dispute_rate": null,
    "p95_latency_ms": 2341,
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    "health": "probe/24h",
    "pricing": "unknown",
    "last_check": "2026-09-24T22:00:45.710Z"
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      "url": "https://calcfleet.com/mcp"
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  "profile": {
    "mcp_server": "calcfleet",
    "mcp_version": "1.0.0",
    "tool_count": 122,
    "tools": [
      {
        "name": "mortgage_overpayment_calculator",
        "description": "Mortgage Overpayment Calculator — See exactly how much interest and time you save by overpaying your mortgage. Instant amortization schedule plus a clear breakdown of the months you save."
      },
      {
        "name": "debt_payoff_calculator",
        "description": "Debt Payoff Calculator: Avalanche vs Snowball — Compare the avalanche and snowball debt payoff strategies side by side. See how much interest you save and how many months sooner you'll be debt-free."
      },
      {
        "name": "freelance_hourly_rate_calculator",
        "description": "Freelance Hourly Rate Calculator — Calculate your freelance hourly rate accounting for taxes, business expenses, and a profit margin. Find out exactly what to charge to hit your income goal."
      },
      {
        "name": "compound_interest_calculator",
        "description": "Compound Interest Calculator — Calculate compound interest with monthly contributions. See your balance grow year by year and discover exactly how much of your final balance is pure interest. Supports Verifiable Calculation Certificates: pass certify=true to also receive a signed, independently verifiable receipt (DSSE/Ed25519) for this exact calculation."
      },
      {
        "name": "savings_goal_calculator",
        "description": "Savings Goal Calculator — Calculate the monthly savings you need to reach any goal. Input your target, current balance, annual rate, and years to see your required monthly contribution."
      },
      {
        "name": "car_loan_calculator",
        "description": "Car Loan Calculator with Sales Tax and Trade-In — Calculate your exact monthly car payment including sales tax and trade-in. View your full amortization schedule, total interest paid, and cost of ownership."
      },
      {
        "name": "break_even_calculator",
        "description": "Break-Even Point Calculator — Calculate your break-even point in units and revenue. Enter fixed costs, variable cost per unit, and price to see exactly when your business turns profitable."
      },
      {
        "name": "margin_markup_calculator",
        "description": "Margin and Markup Calculator — Calculate gross profit, margin percentage, and markup percentage instantly. Enter cost and price to see the right number for your business pricing strategy."
      },
      {
        "name": "rent_vs_buy_calculator",
        "description": "Rent vs Buy Calculator — Compare renting vs buying over any timeline. See which builds more wealth, when break-even hits, and how appreciation and rent increases tip the balance."
      },
      {
        "name": "fire_calculator",
        "description": "FIRE Calculator: When Can You Retire Early? — Calculate your FIRE number and years to early retirement. Enter current savings, annual expenses, and expected return rate to reach financial independence."
      },
      {
        "name": "take_home_pay_calculator",
        "description": "Take-Home Pay Calculator (US) — Estimate your US take-home pay for 2026. Enter gross salary and filing status to see federal income tax, Social Security, Medicare, and monthly net income."
      },
      {
        "name": "student_loan_calculator",
        "description": "Student Loan Payoff Calculator — See exactly how many months until you pay off your student loans, how much extra payments save in interest, and whether refinancing makes financial sense."
      },
      {
        "name": "apy_calculator",
        "description": "APY Calculator: APR to APY Conversion — Convert your nominal rate (APR) to APY instantly. See how compounding frequency—daily, monthly, or quarterly—affects your true annual yield and final balance."
      },
      {
        "name": "roi_calculator",
        "description": "ROI Calculator with Annualized Return — Calculate ROI and annualized return on any investment. Add fees and costs to see true net gain and the real annual growth rate behind the headline number."
      },
      {
        "name": "loan_amortization_calculator",
        "description": "Loan Amortization Calculator — Get your full loan amortization schedule instantly. See how each payment splits between interest and principal, and how extra payments cut total interest paid."
      },
      {
        "name": "paint_calculator",
        "description": "Paint Calculator: How Much Paint Do I Need? — Calculate exactly how much paint you need for any room. Enter room dimensions, number of coats, doors, windows, and paint coverage to get total liters and cans."
      },
      {
        "name": "mortgage_refinance_calculator",
        "description": "Mortgage Refinance Calculator — Find out if refinancing your mortgage is worth it. Compare monthly payments, see when you break even, and spot if a lower rate actually costs more overall."
      },
      {
        "name": "tdee_calculator",
        "description": "TDEE Calculator: Daily Calorie Needs — Calculate your Total Daily Energy Expenditure (TDEE) using the Mifflin-St Jeor formula. Find your daily calorie needs for fat loss, maintenance, or muscle gain."
      },
      {
        "name": "macro_calculator",
        "description": "Macro Calculator: Protein, Carbs and Fat Targets — Calculate your daily protein, carb, and fat targets from your calorie goal. Choose a preset split or customize macros for your fitness or body-composition plan."
      },
      {
        "name": "running_pace_calculator",
        "description": "Running Pace Calculator with Race Predictions — Calculate your per-km and per-mile running pace from any distance and time. Get predicted finish times for 5K, 10K, half marathon, and marathon, plus splits."
      },
      {
        "name": "rent_affordability_calculator",
        "description": "Rent Affordability Calculator — Find out how much rent you can afford using the 30% rule, 50/30/20 budget, and a cashflow stress test. All three caps side by side so you see the trade-offs."
      },
      {
        "name": "closing_cost_calculator",
        "description": "Mortgage Closing Cost Estimator — Estimate US mortgage closing costs before you buy. See itemized origination, appraisal, title, and prepaid fees with typical ranges and cash to close."
      },
      {
        "name": "mortgage_points_calculator",
        "description": "Mortgage Discount Points Break-Even Calculator — Find out if buying mortgage discount points is worth it. See the break-even month and net gain over your planned hold period. Points lose if you sell early."
      },
      {
        "name": "home_affordability_calculator",
        "description": "Home Affordability Calculator — Find out how much house you can afford using the 28/36 DTI rule. Enter income, rate, and debts to get your max loan, price, and a DTI scenarios table. Supports Verifiable Calculation Certificates: pass certify=true to also receive a signed, independently verifiable receipt (DSSE/Ed25519) for this exact calculation."
      },
      {
        "name": "down_payment_calculator",
        "description": "Down Payment Calculator with PMI Threshold — Calculate your down payment amount, loan size, and PMI status instantly. See the dollar gap to 20% equity and compare multiple down payment scenarios."
      }
    ],
    "profiled_at": "2026-09-24T22:00:45.710Z"
  },
  "unreachable": false
}