Connect Calculators and your agent gets 122 tools, among them 401k_match_calculator, ai_agent_cost_calculator, ai_automation_payback_calculator. It answers at https://calcfleet.com/api/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 10 times since 4 September 2026; the last check, on 18 October 2026, succeeded.
Tested financial & practical calculators as free, no-auth MCP tools for AI agents.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
401k_match_calculator | 401(k) Employer Match Calculator — Calculate your 401(k) employer match: enter salary and contribution rate to see the free money you earn, your total yearly savings, and long-run growth. Inputs: salary, contributionPct, firstTierPct, firstTierMatchPct, secondTierPct, secondTierMatchPct |
ai_agent_cost_calculator | AI Agent Cost Calculator — See what an AI agent really costs per successful task: steps, tokens, model pricing and success rate turn dashboard cost per run into the true unit cost. Inputs: stepsPerRun, inputTokensPerStep, outputTokensPerStep, modelId, runsPerDay, successRatePct |
ai_automation_payback_calculator | AI Automation Payback Calculator (Process ROI) — Estimate the payback of automating a process with AI: task volume, time saved, review effort, and API costs give net monthly savings and break-even months. Inputs: tasksPerMonth, minutesPerTaskManual, loadedHourlyCost, automationCoveragePct, reviewMinutesPerTask, aiCostPerTask |
ai_build_vs_buy_calculator | AI Build vs Buy Calculator (API vs Self-Host) — Compare the monthly cost of a hosted LLM API against self-hosting on your own GPUs. Find the break-even token volume and see which option is cheaper for you. Inputs: apiPricePerMtok, selfHostFixedPerMonth, tokensPerMonth |
ai_job_exposure_calculator | AI Job Exposure Score — An AI job exposure score built from published research (Eloundou et al. 2023, O*NET, Goldman Sachs): estimate your task mix, not a prediction about you. Inputs: routineCognitive, creativeCognitive, interpersonal, physical |
ai_roi_calculator | AI Tool ROI Calculator (Payback on Adoption) — Estimate the ROI and payback of an AI tool: enter hours saved per week, staff count, and cost to see monthly net savings, break-even months, and annual return. Inputs: hoursSavedPerWeek, hourlyCost, headcount, monthlyToolCost, implementationCost |
amazon_fba_calculator | Amazon FBA Profit Calculator — Calculate Amazon FBA net profit, margin, and ROI for any product. Enter price, COGS, and size tier to see the full fee breakdown and your break-even price. Inputs: price, cogs, adCost, sizeTier, referralRatePct |
apy_calculator | 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. Inputs: nominalRatePct, compounding, deposit, years |
aquarium_stocking_calculator | Aquarium Volume & Stocking Calculator — Work out your fish tank volume and stocking capacity. Enter length, width, and height in inches to get gallons, litres, inch-of-fish, and heater wattage. Inputs: lengthIn, widthIn, heightIn, inchesPerGallon |
aspect_ratio_calculator | Aspect Ratio Calculator (Resize & Crop) — Simplify an aspect ratio and resize while keeping it. Enter width and height to get the ratio like 16:9, then a new width to solve the matching height. Inputs: width, height, newWidth |
baking_pan_conversion_calculator | Baking Pan Size Conversion Calculator — Convert a recipe between round, square, and rectangular baking pans. Scale batter by pan area, not diameter, to see the exact ratio and bake-time guidance. Inputs: original, target |
balance_transfer_calculator | Balance Transfer Calculator — See how much a 0% balance transfer saves vs staying on your current APR. Enter the fee, promo months, and planned payment to find out if it is worth it. Inputs: balance, currentAprPct, transferFeePct, promoMonths, revertAprPct, monthlyPayment |
body_fat_calculator | Body Fat Percentage Calculator (Navy Method) — Estimate your body fat percentage with the US Navy tape-measure method. Enter your sex, height, neck, waist, and hip to see body fat and lean body mass. Inputs: sex, waistCm, neckCm, hipCm, heightCm, weightKg |
break_even_calculator | 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. Inputs: fixedCosts, variableCostPerUnit, pricePerUnit, targetProfit |
brine_calculator | Brine Calculator (Salt Ratio by Weight) — Calculate salt and sugar for wet or dry brines by weight: enter water volume or meat weight and a salt percentage to get exact grams and a strength chart. Inputs: mode, waterVolumeL, meatWeightGrams, saltPct, sugarPct |
burn_rate_runway_calculator | Burn Rate & Runway Calculator — Calculate startup burn rate and cash runway. Gross vs net burn, default alive or dead verdict, and month-by-month cash balance simulation with revenue growth. Inputs: cashBalance, monthlyExpenses, monthlyRevenue, monthlyRevenueGrowthPct, monthlyExpenseGrowthPct |
cac_ltv_calculator | CAC : LTV Ratio Calculator — Calculate Customer Lifetime Value, LTV:CAC ratio with poor/fair/good/excellent verdict bands, CAC payback months, and monthly gross profit per customer. Inputs: arpa, grossMarginPct, monthlyChurnPct, cac |
calorie_deficit_calculator | Calorie Deficit Calculator (Goal Weight by Date) — Set a goal weight and a target date to see the daily calorie deficit you need, your projected weekly loss rate, and whether the pace is safe or too fast. Inputs: currentKg, goalKg, days |
calories_burned_calculator | Calories Burned Calculator (MET-Based) — Calculate calories burned by activity with the MET formula: enter weight, minutes, and activity to estimate energy spent, and compare exercises side by side. Inputs: met, weightKg, minutes |
car_affordability_calculator | Car Affordability Calculator — How much car can you afford? Enter your monthly budget, APR, loan term, and down payment to see your max loan and car price, plus a 15%-of-income rule check. Inputs: monthlyPayment, annualRatePct, termMonths, downPayment, tradeIn, monthlyIncome |
car_depreciation_calculator | Car Depreciation Calculator — Estimate what your car will be worth in the years ahead. Enter price and depreciation rates to see a year-by-year value curve, total loss, and percent lost. Inputs: price, firstYearRate, annualRate, horizonYears |
car_lease_calculator | Car Lease Payment Calculator (Money Factor) — Estimate your monthly car lease payment from the cap cost, residual, term, and money factor. See the depreciation and finance split, sales tax, and APR. Inputs: capCost, residual, termMonths, moneyFactor, salesTaxPct |
car_loan_calculator | 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. Inputs: vehiclePrice, downPayment, tradeInValue, annualRatePct, termMonths, salesTaxPct |
cd_ladder_calculator | CD Ladder Calculator — Build a CD ladder: split your savings across staggered-maturity CDs and see year-one interest, per-rung breakdown, and your blended APY across the whole ladder. Inputs: principal, rungs, baseApy, step |
churn_rate_calculator | Churn & Retention Rate Calculator — Calculate monthly and annual customer churn, revenue churn, and net revenue retention. Compounding conversion and implied average customer lifetime included. Inputs: startingCustomers, lostCustomers, startingMRR, lostMRR, expansionMRR |
closing_cost_calculator | 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. Inputs: homePrice, loanAmount, originationFeePct, appraisalFee, titleFee, recordingFee |
coast_fire_calculator | Coast FIRE Calculator — Find your Coast FIRE number: the amount you need invested today so it grows to your FIRE target by retirement with zero further contributions. Mind the gap. Inputs: targetFireNumber, currentSavings, currentAge, retirementAge, realReturnPct |
compound_interest_calculator | 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: pa Inputs: initialPrincipal, monthlyContribution, annualRatePct, years, certify |
concrete_calculator | Concrete Calculator (Cubic Yards & Bags) — Calculate how much concrete you need for a slab, footing, or pad. Enter length, width, and thickness to get cubic yards, cubic feet, and the exact bag count. Inputs: lengthFt, widthFt, thicknessInches, wastePct, bagYieldFt3 |
contractor_vs_employee_calculator | 1099 vs W-2 Rate Calculator — Compare a W-2 job to 1099 contract work: enter salary, employer FICA, benefits, and PTO to see the equivalent 1099 gross rate you need to break even fairly. Inputs: w2Salary, employerFicaPct, benefitsValue, ptoValue, contractorGross |
cost_per_mile_calculator | Cost Per Mile to Own a Car Calculator — See what your car truly costs to drive: enter yearly fuel, maintenance, insurance, depreciation, and financing interest or lease cost to get your real cost per mile driven. Inputs: fuel, maintenance, insurance, depreciation, financingOrLeaseCost, annualMiles |
credit_card_payoff_calculator | Credit Card Payoff Calculator — Find out how many months until your credit card is paid off — and how the minimum-payment trap costs you decades and multiples of your original balance. Inputs: balance, aprPct, monthlyPayment, targetMonths |
crop_factor_calculator | Crop Factor / Equivalent Focal Length Calculator — Convert focal length to a full-frame equivalent by crop factor. Enter focal length, aperture, and sensor to get equivalent focal, aperture, and field of view. Inputs: focalMm, aperture, sensorPreset, cropFactor, sensorWidthMm |
debt_consolidation_calculator | Debt Consolidation Calculator — See how your current debts compare against one new consolidation loan. A lower rate with a longer term can still cost you more — see the true lifetime numbers. Inputs: debts, consolidationAprPct, consolidationTermMonths |
debt_payoff_calculator | 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. Inputs: debts, extraMonthly, strategy |
deck_boards_calculator | Deck Board Calculator (Linear Feet & Boards) — Calculate how many deck boards you need. Enter deck length, width, board width, gap, and board length to get area, linear feet, board count, and total cost. Inputs: deckLength, deckWidth, boardWidthIn, gapIn, boardLengthFt, wastePct |
depth_of_field_calculator | Depth of Field & Hyperfocal Calculator — Calculate depth of field and hyperfocal distance from focal length, aperture, and subject distance. See the near and far limits of sharp focus in meters. Inputs: focalLengthMm, aperture, circleOfConfusionMm, subjectDistanceM |
dividend_reinvestment_calculator | DRIP Dividend Reinvestment Calculator — See how reinvested dividends compound your portfolio. Enter dividend yield, price growth, and yearly contributions to project future value and total growth. Inputs: principal, dividendYieldPct, priceGrowthPct, annualContribution, years |
dog_age_calculator | Dog Age Calculator (Human Years, Size-Adjusted) — Convert your dog age into human years the AKC way, adjusted for body size — not the old myth of multiplying by seven. Enter age and size for a real estimate. Inputs: age, sizeClass |
down_payment_calculator | 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. Inputs: price, downPct |
drywall_calculator, dti_calculator, ecommerce_profit_margin_calculator, electricity_cost_calculator, employee_cost_calculator, etsy_fee_calculator, ev_charging_cost_calculator, fence_calculator, fertilizer_calculator, fine_tuning_cost_calculator, fire_calculator, flooring_calculator, freelance_hourly_rate_calculator, gas_vs_electric_car_calculator, global_hiring_cost_calculator, gpu_vram_calculator, grass_seed_calculator, gravel_calculator, heart_rate_zone_calculator, heat_pump_savings_calculator, heloc_calculator, hire_vs_outsource_calculator, home_affordability_calculator, home_battery_size_calculator, ideal_weight_calculator, lead_gen_budget_calculator, lease_vs_buy_car_calculator, llc_vs_sole_proprietor_calculator, llm_api_cost_calculator, llm_self_host_vs_api_calculator, llm_throughput_calculator, loan_amortization_calculator, macro_calculator, margin_markup_calculator, mortgage_overpayment_calculator, mortgage_piti_calculator, mortgage_points_calculator, mortgage_refinance_calculator, mulch_calculator, one_rep_max_calculator, overtime_pay_calculator, paint_calculator, pay_raise_calculator, payback_period_calculator, personal_loan_calculator, pet_cost_calculator, pet_food_portion_calculator, pizza_dough_calculator, pricing_strategy_calculator, print_resolution_calculator, product_pricing_calculator, prompt_caching_savings_calculator, pto_accrual_calculator, puppy_weight_calculator, purchase_impact_calculator, rag_cost_calculator, recipe_cost_calculator, recipe_scaler_calculator, rent_affordability_calculator, rent_vs_buy_calculator, required_savings_calculator, retirement_monte_carlo_calculator, roas_calculator, roi_calculator, roth_ira_calculator, running_pace_calculator, saas_mrr_growth_calculator, salary_to_hourly_calculator, sales_tax_calculator, savings_drawdown_calculator, savings_goal_calculator, solar_panel_savings_calculator, solar_system_size_calculator, student_loan_calculator, take_home_pay_calculator, tdee_calculator, tiered_commission_calculator, tile_calculator, time_lapse_calculator, token_counter_calculator, topsoil_calculator, turkey_cooking_time_calculator
Every block below points at https://calcfleet.com/api/mcp. Pick your client and copy.
claude mcp add --transport http calculators https://calcfleet.com/api/mcp
{
"mcpServers": {
"calculators": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://calcfleet.com/api/mcp"]
}
}
}{
"mcpServers": {
"calculators": {
"url": "https://calcfleet.com/api/mcp"
}
}
}{
"servers": {
"calculators": {
"type": "http",
"url": "https://calcfleet.com/api/mcp"
}
}
}{
"context_servers": {
"calculators": {
"url": "https://calcfleet.com/api/mcp"
}
}
}{
"mcpServers": {
"calculators": {
"serverUrl": "https://calcfleet.com/api/mcp"
}
}
}{
"mcpServers": {
"calculators": {
"url": "https://calcfleet.com/api/mcp"
}
}
}name: Calculators
version: 0.0.1
schema: v1
mcpServers:
- name: Calculators
type: streamable-http
url: https://calcfleet.com/api/mcp{
"mcpServers": {
"calculators": {
"httpUrl": "https://calcfleet.com/api/mcp"
}
}
}{
"mcpServers": {
"calculators": {
"type": "http",
"url": "https://calcfleet.com/api/mcp"
}
}
}{
"mcpServers": {
"calculators": {
"url": "https://calcfleet.com/api/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fcalcfleet.com%2Fapi%2Fmcp&type=streamable_http&id=calculators&name=Calculators
It answered our last check on 18 October 2026 in 251 ms. Over 10 checks since 4 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by calcfleet.com and served from calcfleet.com, the vendor's own domain: https://calcfleet.com/api/mcp.
122, as returned by the server's own tools/list on 10 September 2026: 401k_match_calculator, ai_agent_cost_calculator, ai_automation_payback_calculator, ai_build_vs_buy_calculator, ai_job_exposure_calculator, ai_roi_calculator, amazon_fba_calculator, apy_calculator, and 114 more.
It answered our last check on 18 October 2026 in 251 ms. Over 10 checks since 4 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://calcfleet.com/api/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.calcfleet. Endpoint host: calcfleet.com. ARD identifier: urn:air:com.calcfleet:mcp:calculators.
First indexed 31 August 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.