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MCP servers › com.calcbright › calcbright

MCP server · registry snapshot 2026-10-23 · last tested 2026-10-23

com.calcbright/calcbright

160+ calculators: take-home pay for 166 countries, mortgage, loan, VAT, BMI, dates, units, currency. — the publisher's description

1 of 2 record checks metRead-only · tools listed 2026-10-23Topic: finance-and-payments · AI-classifiedPricing: free · AI-classifiedversion 1.1.0streamable HTTP167 tools

Summary

com.calcbright/calcbright is a remote MCP server listed in the official MCP registry at version 1.1.0. On 2026-10-23 ProtocolProbe connected to it in read-only mode and read its inventory: 167 tools, 0 resources and 0 prompts.

Record checks

1 of 2 record checks met · 7 do not apply

  • met: Registry entry is active and says how to run it
  • not met: Source repository link opens
  • not applicable: Repository is not archived
  • not applicable: Code pushed to the repository in the 90 days before our check
  • not applicable: Repository publishes a security policy (SECURITY.md)
  • not applicable: Package names its licence with a standard (SPDX) identifier
  • not applicable: The version the registry lists can be installed and is not withdrawn
  • not applicable: npm package carries build provenance (attestation)
  • not applicable: No known critical or high advisory in the package or its dependencies
  • Not ranked by downloads: a remote server publishes no download figure
  • Not ranked by stars: no public GitHub repository

From public records, not a safety rating. Each check with its reason

Key facts

Runs
remote (hosted by the publisher)
Transport
streamable HTTP
Sign-in
none needed to open a session
Tools
167
Described as changing data
0 of 167 toolsAI-classified
Mainly works on
nothing outside itself: it only answers questionsAI-classified
Topic
finance-and-paymentsAI-classified
Pricing
freeAI-classified
Last tested
2026-10-23

Add to your client

How fresh this is

Live-tested
yes, a real session (not a text-only review)
Last tested
2026-10-23
Mode
read-only (no tool calls)
Latest version
1.1.0, published 2026-10-12 (registry, as of the 2026-10-23 snapshot)
First listed version
2026-10-12 (earliest version still in the registry; older removed versions would be earlier)
Registry data
snapshot 2026-10-23
Package and repository
checked 2026-10-22
Engine
mcp-runtime-engine@0.1.0 · sdk@1.32.0

Changes since the last refresh

New in the registry: not in the list of 2026-10-04, listed on 2026-10-23 with version 1.1.0 (published 2026-10-12).

Source: the official MCP Registry list on 2026-10-04 and on 2026-10-23.

What it is

What does this server offer?

Observed inventory
167tools
0resources
0prompts

What it mainly works on, as our AI model read its tool descriptions: nothing outside itself: it only answers questions.

None of its 167 tools are described as changing anything. For 47 the reading was uncertain, so no mark is shown.

  • mortgage_calculatoron 5 other serverscalculates or converts

    “A $320,000 loan at 6.5% over 30 years is about $2,023 a month before escrow.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    10 inputs
    • pricenumber“Home price”
    • downnumber“Down payment (%)”
    • ratenumber“Interest rate (%)”
    • yearsnumber“Loan term (years)”
    • currencystring“Currency”
    • taxnumber“Property tax / year”
    • insurancenumber“Home insurance / year”
    • hoanumber“HOA fees / month”
    • pminumber“PMI rate (if down < 20%) (%)”
    • extranumber“Extra payment / month Extra principal paid every month.”
  • loan_calculatoron 6 other serverscalculates or converts

    “Borrow 25,000 at 7.5% for 5 years and the EMI is about 501 a month.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    6 inputs
    • amountnumber“Loan amount”
    • currencystring“Currency”
    • ratenumber“Interest rate (% per year)”
    • yearsnumber“Term (years)”
    • monthsnumber“+ months”
    • extranumber“Extra payment / month Optional prepayment added to every installment.”
  • compound_interest_calculatoron 3 other serverscalculates or converts

    “$10,000 at 7% compounded monthly grows to about $40,387 in 20 years.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    6 inputs
    • initialnumber“Initial deposit”
    • currencystring“Currency”
    • monthlynumber“Monthly contribution”
    • ratenumber“Annual interest rate (%)”
    • yearsnumber“Years (years)”
    • compoundingstring“Compounding”
  • salary_calculatoron 2 other serverscalculates or converts

    “$25 an hour is $52,000 a year at 40 hours a week.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    7 inputs
    • amountnumber“Pay amount”
    • periodstring“Per”
    • hoursnumber“Hours per week”
    • daysnumber“Days per week”
    • weeksnumber“Paid weeks per year”
    • currencystring“Currency”
    • taxnumber“Estimated tax rate (%) Optional: your approximate total tax & deduction rate.”
  • percentage_calculatoron 6 other serverscalculates or converts

    “What is 15% of 200?”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • modestring“Calculation”
    • anumber“Percent (X)”
    • bnumber“Of number (Y)”
  • age_calculatoron 2 other serverscalculates or converts

    “Your exact age in years, months and days from your date of birth, plus total weeks and days, the weekday you were born and how long until your next birthday.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    2 inputs
    • birthstring“Date of birth (YYYY-MM-DD)”
    • asOfstring“Age on date Leave empty to use today's date.”
  • bmi_calculatoron 6 other serverscalculates or converts

    “70 kg at 1.75 m is a BMI of 22.9.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    9 inputs
    • unitsstring“Units”
    • sexstring“Sex”
    • agenumber“Age (years)”
    • cmnumber“Height (cm)”
    • ftnumber“Height (ft)”
    • inchnumber“(in)”
    • kgnumber“Weight (kg)”
    • lbnumber“Weight (lb)”
    • activitystring“Activity level”
  • unit_converteron 2 other serverscalculates or converts

    “Convert cm to inches, kg to lbs, °C to °F and more in 18 categories, from length and weight to torque, flow rate and density, using exact conversion factors.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • valuenumber“Value”
    • fromstring“From”
    • tostring“To”
  • currency_converteron 1 other servercalculates or converts

    “Convert USD, EUR, GBP, INR, PKR, AED and 30+ other currencies at mid-market rates refreshed several times a day, with quick tables for common amounts.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • amountnumber“Amount”
    • fromstring“From”
    • tostring“To”
  • time_zone_convertercalculates or converts

    “9:00 AM in New York is 2:00 PM in London in summer.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • whenstring“Date & time Leave empty to use the current time.”
    • fromstring“From”
    • tostring“To”
  • 401k_calculatorcalculates or converts

    “A 401k calculator with the 2026 $24,500 limit and catch-ups built in: project your balance at retirement from your match, raises and returns, year by year.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    9 inputs
    • salarynumber“Annual salary”
    • contributionnumber“Your contribution (% of pay)”
    • balancenumber“Current 401(k) balance”
    • matchnumber“Employer match (%) e.g.”
    • matchLimitnumber“…up to (% of pay)”
    • agenumber“Current age (years)”
    • retireAgenumber“Retirement age (years)”
    • ratenumber“Expected annual return (%)”
    • raisenumber“Annual salary increase (%)”
  • amortization_calculatorcalculates or converts

    “This amortization calculator splits every payment into principal and interest, shows your payoff date and what extra payments save, and exports to CSV.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    7 inputs
    • amountnumber“Loan amount”
    • currencystring“Currency”
    • ratenumber“Interest rate (%)”
    • startstring“First payment date (YYYY-MM-DD)”
    • termnumber“Loan term”
    • unitstring“Term in”
    • extranumber“Extra payment / month Added to principal every month from the first payment.”
Show 88 more tools
  • annuity_calculatorcalculates or converts

    “An annuity calculator for fixed-term income: what a lump sum pays monthly over 10–30 years, or the pot needed for a target payment, level or rising yearly.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    8 inputs
    • modestring“I want to find”
    • amountnumber“Lump sum (starting balance)”
    • currencystring“Currency”
    • ratenumber“Annual interest rate (%) Compounded at the payment frequency.”
    • yearsnumber“Payout period (years)”
    • frequencystring“Payments”
    • timingstring“Paid at”
    • growthnumber“Payment increase each year (%) E.g.”
  • apr_calculatorcalculates or converts

    “A 7% loan with a $1,000 fee really costs 9.17%.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • amountnumber“Loan amount”
    • currencystring“Currency”
    • ratenumber“Interest rate (%)”
    • termnumber“Loan term (months)”
    • feesnumber“Upfront fees Origination, processing, points and other finance charges.”
  • area_calculatorcalculates or converts

    “Area of a rectangle, square, triangle, circle, trapezoid, parallelogram or ellipse from your measurements, with the formula and the working shown.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • shapestring“Shape”
    • unitstring“Unit”
    • xnumber“Length”
    • ynumber“Width”
    • znumber
  • auto_loan_calculatorcalculates or converts

    “An auto loan calculator that counts sales tax, down payment and trade-in the way most US states do, then shows the car payment, interest and full schedule.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    7 inputs
    • pricenumber“Vehicle price”
    • currencystring“Currency”
    • downnumber“Down payment”
    • tradeInnumber“Trade-in value”
    • taxnumber“Sales tax (%) Charged on the price minus the trade-in.”
    • ratenumber“Interest rate (APR) (%)”
    • termnumber“Loan term (months)”
  • average_calculatoron 2 other serverscalculates or converts

    “Paste a list of numbers to get the mean, median, mode, range, sum and count at once – with the working for each, so you can see why mean and median differ.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    1 input
    • numbersstring“Numbers Separate values with commas, spaces or new lines.”
  • bmr_calculatoron 3 other serverscalculates or converts

    “Your basal metabolic rate from Mifflin–St Jeor, revised Harris–Benedict and Katch–McArdle side by side, plus daily calorie needs at five activity levels.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    9 inputs
    • unitsstring“Units”
    • sexstring“Sex”
    • agenumber“Age (years)”
    • cmnumber“Height (cm)”
    • ftnumber“Height (ft)”
    • inchnumber“(in)”
    • kgnumber“Weight (kg)”
    • lbnumber“Weight (lb)”
    • bodyFatnumber“Body fat (optional, for Katch–McArdle) (%)”
  • body_fat_calculatoron 4 other serverscalculates or converts

    “Body fat % from a tape measure with the US Navy (Hodgdon–Beckett) formula: enter neck, waist and hips to get your ACE category, fat mass and lean mass.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    13 inputs
    • unitsstring“Units”
    • sexstring“Sex”
    • cmnumber“Height (cm)”
    • ftnumber“Height (ft)”
    • inchnumber“(in)”
    • kgnumber“Weight (kg)”
    • lbnumber“Weight (lb)”
    • neckCmnumber“Neck (below the larynx) (cm)”
    • neckInnumber“Neck (below the larynx) (in)”
    • waistCmnumber“Waist (men: at navel · women: narrowest) (cm)”
    • waistInnumber“Waist (men: at navel · women: narrowest) (in)”
    • hipCmnumber“Hips (widest point) (cm)”
    • hipInnumber“Hips (widest point) (in)”
  • body_surface_area_calculatorcalculates or converts

    “A person 170 cm tall weighing 70 kg has a body surface area of 1.82 m² by the Mosteller formula.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • unitsstring“Units”
    • heightnumber“Height (cm)”
    • weightnumber“Weight (kg)”
    • heightInnumber“Height (inches)”
    • weightLbnumber“Weight (pounds)”
  • break_even_calculatoron 2 other serverscalculates or converts

    “How many units must you sell before you make a profit?”

    Publisher declares: read-only yes · idempotent yes · open-world no

    4 inputs
    • fixednumber“Fixed costs (per period) Rent, salaries, insurance…”
    • currencystring“Currency”
    • pricenumber“Price per unit”
    • variablenumber“Variable cost per unit Materials, packaging, commission…”
  • btu_calculatorcalculates or converts

    “Size an air conditioner or heater in BTU/h, tons and kW from room area, ceiling height, sun and occupants – with a Gulf climate setting for the UAE and Saudi.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    10 inputs
    • unitsstring“Units”
    • modestring“Sizing for”
    • sqftnumber“Room area (sq ft) Length × width of the room.”
    • sqmnumber“Room area (m²) Length × width of the room.”
    • ceilFtnumber“Ceiling height (ft)”
    • ceilMnumber“Ceiling height (m)”
    • climatestring“Climate”
    • sunstring“Sun exposure”
    • occupantsnumber“People usually in the room”
    • kitchenstring“Is it a kitchen?”
  • budget_calculatoron 1 other servercalculates or converts

    “Budget your take-home pay with the 50/30/20 rule – needs, wants and savings in monthly amounts – or set your own split, such as 60/20/20 for high-rent cities.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    4 inputs
    • incomenumber“Monthly take-home income After tax and deductions”
    • currencystring“Currency”
    • needsPctnumber“Needs (%)”
    • wantsPctnumber“Wants (%) Savings get whatever is left”
  • business_days_calculatorcalculates or converts

    “Count Monday–Friday working days between two dates (January 2026 has 22), or add business days to a start date to find a shipping or contract deadline.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    4 inputs
    • modestring“What do you want to do?”
    • startstring“Start date (YYYY-MM-DD)”
    • endstring“End date (YYYY-MM-DD)”
    • daysnumber“Business days to add Use a negative number to go back in time.”
  • cagr_calculatorcalculates or converts

    “A CAGR calculator for the steady yearly rate between two values: $10,000 to $20,000 in 5 years is 14.87% a year.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    4 inputs
    • beginnumber“Beginning value”
    • currencystring“Currency”
    • endnumber“Ending value”
    • yearsnumber“Number of years (years)”
  • calorie_deficit_calculatoron 1 other servercalculates or converts

    “Your maintenance calories, a daily target for losing 0.25–1 kg (0.5–2 lb) a week and the weeks to your goal weight – never set below safe minimum intakes.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    12 inputs
    • unitsstring“Units”
    • sexstring“Sex”
    • agenumber“Age (years)”
    • cmnumber“Height (cm)”
    • ftnumber“Height (ft)”
    • inchnumber“(in)”
    • kgnumber“Weight (kg)”
    • lbnumber“Weight (lb)”
    • activitystring“Activity level”
    • goalKgnumber“Goal weight (kg)”
    • goalLbnumber“Goal weight (lb)”
    • ratestring“Weight loss per week (kg)”
  • calories_burned_calculatoron 1 other servercalculates or converts

    “Calories burned walking, running, cycling, swimming, lifting and 20+ more activities, from Compendium MET values, your body weight and the time spent.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • activitystring“Activity”
    • unitsstring“Units”
    • kgnumber“Weight (kg)”
    • lbnumber“Weight (lb)”
    • minutesnumber“Duration (min)”
  • canadian_mortgage_calculatorcalculates or converts

    “Canadian mortgage payments with semi-annual compounding, CMHC premiums, the minimum down payment and accelerated bi-weekly or weekly options.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    6 inputs
    • pricenumber“Home price”
    • downnumber“Down payment (%) Minimum 5% of the first $500,000 and 10% of the rest; 20% from $1.5M.”
    • ratenumber“Interest rate (fixed) (%) Compounded semi-annually, as Canadian law requires for fixed rates.”
    • yearsstring“Amortization”
    • freqstring“Payment frequency”
    • buyerstring“First-time buyer or new build?”
  • capital_gains_tax_calculatorcalculates or converts

    “2026 US federal tax on a stock, crypto or property sale: long-term 0%, 15% or 20% versus short-term ordinary rates, plus the 3.8% NIIT where it applies.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • purchasenumber“Purchase price (cost basis) Include buying commissions and improvements.”
    • salenumber“Sale price After selling costs.”
    • holdingstring“Holding period”
    • filingstring“Filing status”
    • incomenumber“Other annual income Wages and other ordinary income for the year, before the standard deduction.”
  • car_lease_calculatoron 1 other servercalculates or converts

    “Car lease payment from price, MSRP, residual, money factor or APR, term and sales tax – split into depreciation, finance charge and tax to check a dealer quote.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    10 inputs
    • msrpnumber“MSRP (sticker price)”
    • pricenumber“Negotiated price Gross capitalised cost”
    • downnumber“Down payment & trade-in Capitalised cost reduction”
    • currencystring“Currency”
    • residualPctnumber“Residual value (% of MSRP)”
    • termnumber“Lease term (months)”
    • rateTypestring“Interest given as”
    • aprnumber“APR (%)”
    • mfnumber“Money factor APR ≈ money factor × 2,400”
    • taxnumber“Sales tax (%) Applied to the monthly payment, as in most US states”
  • case_converteron 2 other serverscalculates or converts

    “Switch text to UPPER, lower, Title or Sentence case, or to camelCase, snake_case and kebab-case for code.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    2 inputs
    • textstring“Your text”
    • modestring“Convert to”
  • cd_calculatorcalculates or converts

    “A CD calculator for interest earned by maturity, with APY to APR conversion for any compounding – the same maths for Canadian GICs, UK bonds and GCC deposits.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    6 inputs
    • depositnumber“Deposit amount”
    • currencystring“Currency”
    • ratenumber“Interest rate (%)”
    • rateTypestring“Rate quoted as”
    • termnumber“Term (months)”
    • compoundingstring“Compounding”
  • circle_calculatorcalculates or converts

    “Know a circle’s radius, diameter, circumference or area?”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • knownstring“I know the”
    • unitstring“Unit”
    • valuenumber“Radius (r)”
  • color_converteron 2 other serverscalculates or converts

    “Convert any color between HEX, RGB, HSL, HSV and CMYK, preview the swatch, check WCAG 2 contrast on white and black, and get a palette of tints and shades.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    1 input
    • colorstring“Colour Paste HEX, RGB, HSL, HSV, CMYK or a basic colour name such as “teal”.”
  • commission_calculatorcalculates or converts

    “Sales commission from the sale amount and rate, plus base salary for total pay – and a table comparing earnings at other rates.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    4 inputs
    • salesnumber“Sale amount”
    • currencystring“Currency”
    • ratenumber“Commission rate (%)”
    • basenumber“Base salary (optional) For the same period as the sales”
  • concrete_calculatoron 2 other serverscalculates or converts

    “Concrete for slabs, wall footings and post holes in cubic yards and cubic meters, plus how many 40, 60 or 80 lb or 25 kg premix bags to buy for the job.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    9 inputs
    • shapestring“Shape”
    • unitstring“Units”
    • lengthnumber“Length (ft)”
    • widthnumber“Width (ft)”
    • depthnumber“Thickness (in)”
    • diameternumber“Diameter (in)”
    • heightnumber“Height / depth (ft)”
    • qtynumber“Quantity”
    • wastenumber“Extra for waste / spillage (%) Many contractors add 5–10%.”
  • confidence_interval_calculatorcalculates or converts

    “Confidence intervals for a mean (t or z) or a proportion (Wald and Wilson) at 80–99.9% confidence – margin of error, critical value and every step shown.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    6 inputs
    • typestring“Interval for”
    • confstring“Confidence level”
    • meannumber“Sample mean (x̄)”
    • sdnumber“Sample SD (s)”
    • xnumber“Successes (x)”
    • nnumber“Sample size (n)”
  • cooking_convertercalculates or converts

    “Cups, tablespoons and teaspoons to grams or ounces by each ingredient’s density – a cup of flour is 125 g, a cup of sugar 200 g.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    4 inputs
    • ingredientstring“Ingredient”
    • amountnumber“Amount”
    • fromstring“From”
    • tostring“To”
  • countdown_calculatorcalculates or converts

    “How many days until Christmas, New Year or your own date?”

    Publisher declares: read-only yes · idempotent yes · open-world no

    4 inputs
    • presetstring“Count down to”
    • targetstring“Target date (YYYY-MM-DD)”
    • labelstring“Event name (optional)”
    • fromstring“Count from Leave empty to count from today.”
  • credit_card_payoff_calculatoron 1 other servercalculates or converts

    “Credit card payoff calculator: $5,000 at 22% APR, paying $200 a month, takes 34 months and $1,749.90 of interest.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    6 inputs
    • balancenumber“Card balance”
    • currencystring“Currency”
    • aprnumber“Interest rate (APR) (%)”
    • modestring“I want to”
    • paymentnumber“Monthly payment”
    • monthsnumber“Pay off in (months)”
  • date_calculatoron 1 other servercalculates or converts

    “Add or subtract days, weeks, months or years from any date to get the exact date and weekday – like 90 days from today.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    6 inputs
    • startstring“Start date Leave empty to start from today.”
    • opstring“Operation”
    • yearsnumber“Years”
    • monthsnumber“Months”
    • weeksnumber“Weeks”
    • daysnumber“Days”
  • date_difference_calculatoron 1 other servercalculates or converts

    “Days between two dates, also shown in weeks, months and years, with weekday and weekend counts.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • startstring“Start date (YYYY-MM-DD)”
    • endstring“End date Leave empty to use today's date.”
    • includeEndstring“Include the end date?”
  • day_of_week_calculatorcalculates or converts

    “What day of the week was it?”

    Publisher declares: read-only yes · idempotent yes · open-world no

    1 input
    • datestring“Date Leave empty to use today's date.”
  • debt_payoff_calculatoron 1 other servercalculates or converts

    “A debt payoff calculator that runs the snowball and avalanche across all your debts: debt-free date, total interest and the order each balance is cleared.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • debtsstring“Your debts – one per line: name, balance, APR, minimum payment Example: Car loan, 12000, 6.5, 280 – write amounts without thousands separators.”
    • budgetnumber“Total monthly budget for debts Everything you can pay each month, including the minimums.”
    • currencystring“Currency”
  • debt_to_income_calculatorcalculates or converts

    “A debt to income ratio calculator that adds your monthly debts, finds your DTI and 28% housing ratio, and checks them against the 36% and 43% lender limits.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    7 inputs
    • incomenumber“Gross monthly income Before tax and deductions.”
    • currencystring“Currency”
    • housingnumber“Rent or mortgage payment”
    • autonumber“Car loan payments”
    • studentnumber“Student loan payments”
    • cardsnumber“Credit card minimums”
    • othernumber“Other debt payments Personal loans, child support, alimony, etc.”
  • depreciation_calculatoron 1 other servercalculates or converts

    “Depreciation calculator: yearly schedules and book value for straight-line, double-declining balance, sum-of-the-years’ digits and units of production.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    7 inputs
    • costnumber“Asset cost”
    • currencystring“Currency”
    • salvagenumber“Salvage (residual) value”
    • lifenumber“Useful life (years)”
    • methodstring“Method”
    • totalUnitsnumber“Total lifetime units Machine hours, miles, items produced…”
    • unitsstring“Units used each year One number per year, separated by commas.”
  • discount_calculatoron 3 other serverscalculates or converts

    “Sale price and savings for any percent off, plus the true total when discounts stack: 25% off and then an extra 10% off is 32.5% in total, not 35%.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    4 inputs
    • pricenumber“Original price”
    • currencystring“Currency”
    • discountnumber“Discount (% off)”
    • extranumber“Extra discount (optional) (% off) Applied to the already-reduced price”
  • dividend_yield_calculatorcalculates or converts

    “A $50 stock paying $0.50 a quarter yields 4%.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • pricenumber“Share price”
    • currencystring“Currency”
    • dividendnumber“Dividend per share, per payment”
    • frequencystring“Paid”
    • sharesnumber“Number of shares (optional) (shares)”
  • dld_fee_calculatorcalculates or converts

    “Budget 6–7% on top of a Dubai property price.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    6 inputs
    • pricenumber“Property price”
    • purchasestring“Buying with”
    • loannumber“Mortgage amount”
    • agentPctnumber“Agent commission (%) Usually 2% of the price, plus 5% VAT.”
    • splitstring“Who pays the 4% DLD fee?”
    • nocnumber“Developer NOC fee (if you pay it) Developers charge about AED 500–5,000 + VAT for the No Objection Certificate; the seller normally pays it.”
  • down_payment_calculatoron 1 other servercalculates or converts

    “Down payment, loan amount and LTV for any home price, with 3%, 5%, 10% and 20% down side by side – and a flag for when PMI applies below 20% equity.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • pricenumber“Home price”
    • currencystring“Currency”
    • downPctnumber“Down payment (%)”
  • dubai_mortgage_calculatorcalculates or converts

    “Expats need 20% down on a first Dubai home under AED 5M.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    9 inputs
    • pricenumber“Property price”
    • buyerstring“Buyer”
    • homestring“Property”
    • downPctnumber“Down payment (%)”
    • ratenumber“Interest rate (%)”
    • yearsnumber“Loan term (years) Maximum 25 years (UAE Central Bank).”
    • arrangePctnumber“Bank arrangement fee (% of loan) Usually up to 1% of the loan; 5% VAT is added.”
    • valuationnumber“Valuation fee”
    • agentPctnumber“Agent commission (%) Plus 5% VAT.”
  • egypt_end_of_service_calculatorcalculates or converts

    “Egypt’s 2025 Labour Law: at least 2 months’ wage per year for an unjustified dismissal, plus 3 months’ notice pay.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    6 inputs
    • wagenumber“Last monthly wage Full monthly wage – basic pay plus regular allowances and fixed bonuses.”
    • startstring“Start date (YYYY-MM-DD)”
    • endstring“End date Leave empty to use today's date.”
    • reasonstring“How did the job end?”
    • noticenumber“Notice given by the employer (months) Months of written notice you received (the law requires 3 months).”
    • insurednumber“Monthly insurable wage (optional) The wage your social insurance is paid on.”
  • egypt_social_insurance_calculatorcalculates or converts

    “Egyptian employees pay 11% social insurance and employers 18.75%, on an insurable wage between EGP 2,700 and EGP 16,700 in 2026.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    1 input
    • wagenumber“Monthly insurable wage The wage you are registered on with social insurance.”
  • electricity_cost_calculatoron 2 other serverscalculates or converts

    “A 100 W TV on 5 hours a day costs about $2.55 a month at 17¢/kWh.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    6 inputs
    • presetstring“Appliance”
    • wattsnumber“Power rating (W) Check the label on the appliance or its charger.”
    • hoursnumber“Hours used per day (h)”
    • daysnumber“Days used per month (days)”
    • pricenumber“Electricity price (per kWh)”
    • currencystring“Currency”
  • exponent_calculatorcalculates or converts

    “Exponent calculator for 8^(2/3), 2⁻³ or 2^100: handles negative, decimal and fractional powers and nth roots, with exact big integers and the rule used.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    4 inputs
    • modestring“Calculate”
    • basenumber“Base”
    • expstring“Exponent Whole numbers, decimals, negatives and fractions like 2/3 all work.”
    • nnumber“Root (n)”
  • fd_calculatorcalculates or converts

    “FD calculator using the quarterly compounding Indian banks apply to cumulative deposits: ₹1 lakh at 7% for 5 years grows to ₹1,41,477.82 at maturity.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • principalnumber“Deposit amount”
    • currencystring“Currency”
    • ratenumber“Interest rate (% p.a.)”
    • yearsnumber“Tenure (years)”
    • compoundingstring“Interest compounded”
  • fha_loan_calculatorcalculates or converts

    “FHA payments at 3.5% down include a 1.75% upfront MIP plus 0.50–0.55% a year.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    10 inputs
    • pricenumber“Home price”
    • downnumber“Down payment (%)”
    • creditstring“Credit score”
    • ratenumber“FHA interest rate (%)”
    • termstring“Loan term”
    • taxnumber“Property tax (/ year)”
    • insurancenumber“Homeowners insurance (/ year)”
    • hoanumber“HOA fees (/ month)”
    • convRatenumber“Conventional interest rate (%)”
    • pmiRatenumber“Conventional PMI rate (% / year) Typically 0.3%–1.5% depending on credit score; drops off at 78% loan-to-value.”
  • flooring_calculatoron 2 other serverscalculates or converts

    “A 12 × 12 ft room with 10% waste needs 8 boxes of 20 sq ft.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    7 inputs
    • unitstring“Units”
    • lengthnumber“Room length (ft)”
    • widthnumber“Room width (ft)”
    • wastenumber“Waste allowance (%) 10% for straight lay, 15% for diagonal or herringbone.”
    • boxnumber“Coverage per box (sq ft)”
    • pricenumber“Price per sq ft (optional)”
    • currencystring“Currency”
  • fraction_calculatoron 3 other serverscalculates or converts

    “Type 1/2 + 3/4 or 2 3/8 ÷ 1 1/4 and get the answer in lowest terms, as a mixed number and as a decimal, with the common-denominator steps written out.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • astring“First fraction”
    • opstring“Operation”
    • bstring“Second fraction”
  • fuel_cost_calculatoron 2 other serverscalculates or converts

    “250 miles at 30 mpg and $3.50 a gallon is $29.17 in gas.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    9 inputs
    • distancenumber“Trip distance (one way)”
    • distUnitstring“Distance unit”
    • economynumber“Fuel economy”
    • econUnitstring“Economy unit”
    • pricenumber“Fuel price”
    • priceUnitstring“Price per”
    • currencystring“Currency”
    • roundTripstring“Round trip?”
    • peoplenumber“Split cost between (people)”
  • fuel_economy_convertercalculates or converts

    “Convert mpg to L/100km, km/L or UK mpg in one step: 30 mpg (US) is 7.84 L/100 km and 36.03 imperial mpg.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    2 inputs
    • valuenumber“Fuel economy”
    • fromstring“Unit”
  • future_value_calculatorcalculates or converts

    “How much will $10,000 plus $200 a month be worth in 10 years?”

    Publisher declares: read-only yes · idempotent yes · open-world no

    9 inputs
    • modestring“Solve for”
    • amountnumber“Present value (starting amount)”
    • currencystring“Currency”
    • ratenumber“Annual interest rate (%)”
    • yearsnumber“Number of years (years)”
    • compoundingstring“Compounding”
    • contributionnumber“Periodic contribution”
    • frequencystring“Contribution frequency”
    • timingstring“Contributions made at”
  • gcc_gratuity_calculatorcalculates or converts

    “Qatar pays 3 weeks a year, Kuwait cuts it if you resign early, Bahrain and Oman changed rules in 2023–24.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • countrystring“Country of employment”
    • reasonstring“How did employment end?”
    • wagenumber“Last basic monthly salary Qatar, Bahrain and Oman: basic wage only.”
    • startstring“Joining date (YYYY-MM-DD)”
    • endstring“Last working day Leave empty to use today's date.”
  • gosi_calculatorcalculates or converts

    “Saudis on the old system pay 9.75% GOSI and employers 11.75%; expats pay nothing.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • nationalitystring“Employee”
    • systemstring“First registered with GOSI”
    • phasestring“Contribution period Under the new law the pension rate rises by 0.5% each July until 2028.”
    • basicnumber“Monthly basic salary”
    • housingnumber“Monthly housing allowance Cash housing allowance – GOSI wage = basic + housing.”
  • gpa_calculatoron 3 other serverscalculates or converts

    “Letter grades A to F with plus and minus, weighted by credit hours, for up to 8 courses.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    18 inputs
    • g1string“Course 1 grade”
    • c1number“Credits”
    • g2string“Course 2 grade”
    • c2number“Credits”
    • g3string“Course 3 grade”
    • c3number“Credits”
    • g4string“Course 4 grade”
    • c4number“Credits”
    • g5string“Course 5 grade”
    • c5number“Credits”
    • g6string“Course 6 grade”
    • c6number“Credits”
    • g7string“Course 7 grade”
    • c7number“Credits”
    • g8string“Course 8 grade”
    • c8number“Credits”
    • gpa0number“Current GPA”
    • credits0number“Credits completed”
  • grade_calculatoron 1 other servercalculates or converts

    “At 88% with a final worth 25%, you need 96% on the final to finish with an A.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • currentnumber“Current grade (%)”
    • targetnumber“Grade you want (%)”
    • weightnumber“Final exam weight (%) Share of the overall grade the final is worth.”
  • gravel_calculatoron 2 other serverscalculates or converts

    “A 10 × 10 ft bed 3 in deep takes 0.93 cubic yards of gravel – about 1.31 tons.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    10 inputs
    • materialstring“Material”
    • shapestring“Area shape”
    • unitsstring“Units”
    • lengthnumber“Length (ft)”
    • widthnumber“Width (ft)”
    • diameternumber“Diameter (ft)”
    • depthnumber“Depth (in) 2–3 in (5–8 cm) for paths, 4–6 in (10–15 cm) for driveways.”
    • pricenumber“Price (optional)”
    • priceUnitstring“Priced”
    • currencystring“Currency”
  • gst_calculatorcalculates or converts

    “Add or remove GST at the slabs in force since September 2025 (5%, 18%, 40%) or legacy 12% and 28%, split as CGST + SGST locally or IGST inter-state.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • modestring“Calculation”
    • amountnumber“Amount excluding GST”
    • currencystring“Currency”
    • ratestring“GST rate”
    • supplystring“Type of supply”
  • heart_rate_zone_calculatoron 1 other servercalculates or converts

    “Zone 2 for a 30-year-old is 114–133 bpm by 220 − age.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • agenumber“Age (years)”
    • restingnumber“Resting heart rate (optional) (bpm) Add it to use the Karvonen (heart-rate reserve) method.”
    • formulastring“Max heart rate formula”
  • height_converteron 1 other servercalculates or converts

    “Convert cm to feet and inches, or feet and inches to cm, using the exact 2.54 cm inch: 175 cm is 5 ft 8.9 in.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    4 inputs
    • modestring“Convert”
    • cmnumber“Height (cm)”
    • feetnumber“Feet (ft)”
    • inchesnumber“Inches (in)”
  • heloc_calculatoron 1 other servercalculates or converts

    “Your HELOC limit is home value × CLTV minus the mortgage.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    7 inputs
    • homenumber“Home value”
    • mortgagenumber“Mortgage balance owed”
    • cltvnumber“Lender's max CLTV (%) Combined loan-to-value limit – most lenders allow 80%–90%.”
    • drawnumber“Amount you plan to borrow”
    • ratenumber“HELOC interest rate (%) Usually variable: prime rate + a margin.”
    • drawYearsnumber“Draw period (years)”
    • repayYearsnumber“Repayment period (years)”
  • hijri_date_convertercalculates or converts

    “Gregorian to Hijri and back on Saudi Arabia’s official Umm al-Qura calendar – for Iqama, contract and payroll dates – with the next Ramadan and Eid dates.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • modestring“Convert”
    • gdatestring“Gregorian date Years 1902–2076 (Umm al-Qura calendar).”
    • hdnumber“Hijri day”
    • hmstring“Hijri month”
    • hynumber“Hijri year (AH)”
  • holiday_entitlement_calculatorcalculates or converts

    “UK holiday entitlement calculator: statutory 5.6 weeks (max 28 days), pro-rata for part-time days or hours, starters and leavers, and 12.07% irregular hours.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    8 inputs
    • basisstring“How do you work?”
    • daysnumber“Days worked per week (days)”
    • hoursnumber“Hours worked per week (hours)”
    • workednumber“Hours worked in the pay period (hours) Holiday accrues at 12.07% of hours actually worked (leave years from 1 April 2024).”
    • periodstring“Employed for”
    • yearStartstring“Leave year starts Often 1 January or 1 April – check your contract.”
    • startstring“Start date Leave blank if before the leave year.”
    • endstring“Leaving date Leave blank if staying.”
  • home_affordability_calculatoron 1 other servercalculates or converts

    “On $100,000 a year the 28/36 rule caps housing at $2,333 a month.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    10 inputs
    • incomenumber“Gross annual income”
    • currencystring“Currency”
    • debtsnumber“Monthly debt payments Car, student, card minimums, etc.”
    • downnumber“Down payment”
    • ratenumber“Mortgage rate (%)”
    • yearsnumber“Loan term (years)”
    • propertyTaxnumber“Property tax (% / yr)”
    • insurancenumber“Home insurance / year”
    • frontnumber“Housing ratio (front-end) (%)”
    • dtinumber“Total DTI limit (back-end) (%)”
  • hours_calculatoron 2 other serverscalculates or converts

    “An hours calculator laid out as a weekly time card: start, end and unpaid break per day, totalled as h:mm and decimal hours, with hours over 40 flagged.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    23 inputs
    • monStartstring“Monday start (HH:MM, 24-hour)”
    • monEndstring“End (HH:MM, 24-hour)”
    • monBreaknumber“Break (min)”
    • tueStartstring“Tuesday start (HH:MM, 24-hour)”
    • tueEndstring“End (HH:MM, 24-hour)”
    • tueBreaknumber“Break (min)”
    • wedStartstring“Wednesday start (HH:MM, 24-hour)”
    • wedEndstring“End (HH:MM, 24-hour)”
    • wedBreaknumber“Break (min)”
    • thuStartstring“Thursday start (HH:MM, 24-hour)”
    • thuEndstring“End (HH:MM, 24-hour)”
    • thuBreaknumber“Break (min)”
    • friStartstring“Friday start (HH:MM, 24-hour)”
    • friEndstring“End (HH:MM, 24-hour)”
    • friBreaknumber“Break (min)”
    • satStartstring“Saturday start (HH:MM, 24-hour)”
    • satEndstring“End (HH:MM, 24-hour)”
    • satBreaknumber“Break (min)”
    • sunStartstring“Sunday start (HH:MM, 24-hour)”
    • sunEndstring“End (HH:MM, 24-hour)”
    • sunBreaknumber“Break (min)”
    • ratenumber“Hourly rate (optional)”
    • currencystring“Currency”
  • ideal_weight_calculatoron 2 other serverscalculates or converts

    “At 175 cm, the Devine formula puts a man’s ideal weight at 70.5 kg.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • unitsstring“Units”
    • sexstring“Sex”
    • cmnumber“Height (cm)”
    • ftnumber“Height (ft)”
    • inchnumber“(in)”
  • income_tax_calculatorcalculates or converts

    “Uses the 2026 IRS brackets and $16,100 standard deduction (Rev.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    7 inputs
    • filingstring“Filing status”
    • incomenumber“Gross annual income Wages, self-employment profit, interest and other ordinary income.”
    • pretaxnumber“Pre-tax deductions 401(k), traditional IRA, HSA, etc.”
    • deductionstring“Deduction”
    • itemizednumber“Total itemized deductions Mortgage interest, state & local taxes (SALT), charity, medical above 7.5% of AGI.”
    • statestring“State”
    • stateRatenumber“State effective tax rate (%) Your state has progressive rates – enter your approximate effective rate.”
  • inflation_calculatoron 2 other serverscalculates or converts

    “At 3% a year, $100 of shopping costs $134.39 in a decade.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • amountnumber“Amount”
    • currencystring“Currency”
    • directionstring“Calculate”
    • ratenumber“Average inflation rate (% / yr) Leave empty to use the latest official annual inflation for your currency’s country.”
    • yearsnumber“Years ahead (years)”
  • interest_only_mortgage_calculatorcalculates or converts

    “A $300,000 loan at 6.5% costs $1,625 a month interest-only, then $2,236.72 once repayment starts.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • loannumber“Loan amount”
    • currencystring“Currency”
    • ratenumber“Interest rate (%)”
    • termnumber“Total loan term (years)”
    • ioYearsnumber“Interest-only period (years)”
  • ip_subnet_calculatorcalculates or converts

    “Paste 192.168.1.10/24 or any IPv4 CIDR to get the network, broadcast, usable host range, subnet and wildcard masks in binary – then split it into equal subnets.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • ipstring“IPv4 address You can also type CIDR notation, such as 10.0.0.0/16.”
    • cidrnumber“Prefix length (CIDR)”
    • splitnumber“Split into subnets (optional) Rounded up to a power of two – e.g.”
  • jordan_end_of_service_calculatorcalculates or converts

    “Jordanian workers outside social security earn one month’s wage per year of service (Labour Law Art.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    6 inputs
    • wagenumber“Last monthly wage The last wage you were paid.”
    • startstring“Start date (YYYY-MM-DD)”
    • endstring“End date Leave empty to use today's date.”
    • coveredstring“Were you covered by social security?”
    • reasonstring“How did the job end?”
    • noticestring“Did the employer give one month’s written notice?”
  • jordan_social_security_calculatorcalculates or converts

    “Jordan’s Social Security Corporation takes 7.5% from employees and 14.25% from employers – 21.75% in all – on wages up to JOD 3,733 a month in 2026.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    1 input
    • wagenumber“Monthly wage Gross monthly wage subject to social security.”
  • land_transfer_tax_calculatorcalculates or converts

    “A $700,000 Ontario home owes $10,475 in land transfer tax – double in Toronto.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    7 inputs
    • regionstring“Province”
    • pricenumber“Purchase price”
    • torontostring“Property in the City of Toronto?”
    • montrealstring“Property in Montréal?”
    • nsRatenumber“Municipal deed transfer tax rate (%) Halifax: 1.5%.”
    • firstTimestring“First-time home buyer?”
    • assessednumber“Assessed value (if higher) Tax is charged on the greater of price and assessed value.”
  • lcm_gcd_calculatorcalculates or converts

    “For 12, 18 and 30 the GCD is 6 and the LCM is 180.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    1 input
    • numbersstring“Whole numbers 2 to 20 positive whole numbers, separated by commas or spaces.”
  • lean_body_mass_calculatorcalculates or converts

    “A 70 kg, 175 cm man has about 56 kg of lean mass by the Boer formula.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    7 inputs
    • unitsstring“Units”
    • sexstring“Sex”
    • cmnumber“Height (cm)”
    • ftnumber“Height (ft)”
    • inchnumber“(in)”
    • kgnumber“Weight (kg)”
    • lbnumber“Weight (lb)”
  • loan_to_value_calculatorcalculates or converts

    “A $240,000 loan on a $300,000 home is an 80% LTV.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • loannumber“Loan / mortgage balance”
    • currencystring“Currency”
    • valuenumber“Property value”
  • logarithm_calculatorcalculates or converts

    “Log calculator for common log (base 10), natural log (ln), log base 2 or any custom base like log₃(81) = 4, with the change-of-base division written out.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • xnumber“Number (x)”
    • basestring“Base”
    • customnumber“Custom base (b)”
  • macro_calculatoron 2 other serverscalculates or converts

    “Protein and carbs have 4 kcal per gram, fat 9.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    11 inputs
    • unitsstring“Units”
    • sexstring“Sex”
    • agenumber“Age (years)”
    • cmnumber“Height (cm)”
    • ftnumber“Height (ft)”
    • inchnumber“(in)”
    • kgnumber“Weight (kg)”
    • lbnumber“Weight (lb)”
    • activitystring“Activity level”
    • goalstring“Goal”
    • dietstring“Diet style”
  • markup_calculatorcalculates or converts

    “A 50% markup on a $40 cost sells at $60 – only a 33.33% margin.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • costnumber“Cost”
    • currencystring“Currency”
    • markupnumber“Markup (%)”
  • morocco_severance_calculatorcalculates or converts

    “Moroccan severance pay is 96 hours of wage a year for the first 5 years, rising to 240 hours after 15.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    6 inputs
    • wagenumber“Average gross monthly wage Average over the last 52 weeks, including bonuses and benefits that are part of your pay (Labour Code Art.”
    • startstring“Start date (YYYY-MM-DD)”
    • endstring“End date Leave empty to use today's date.”
    • categorystring“Job category Sets the minimum notice period.”
    • reasonstring“Type of dismissal”
    • noticestring“Did the employer give the notice period?”
  • mortgage_payoff_calculatorcalculates or converts

    “$200 a month extra on a $250,000, 6.5% loan saves $64,927 and 5½ years.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    10 inputs
    • balancenumber“Current loan balance”
    • currencystring“Currency”
    • ratenumber“Interest rate (%)”
    • startstring“Next payment date (YYYY-MM-DD)”
    • yearsnumber“Remaining term (years)”
    • extraMonthsnumber“plus months (months)”
    • extranumber“Extra payment / month”
    • biweeklystring“Biweekly payments”
    • lumpnumber“One-time lump sum”
    • lumpMonthnumber“Paid with payment #”
  • number_base_convertercalculates or converts

    “Decimal 255 is 11111111 in binary, 377 in octal and FF in hex.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • valuestring“Number to convert”
    • fromstring“Input base”
    • customnumber“Custom base Used for custom input and shown as an extra result.”
  • number_to_words_convertercalculates or converts

    “Writing a check?”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • valuestring“Number”
    • systemstring“Numbering system”
    • unitstring“Currency for cheques”
  • ohms_law_calculatorcalculates or converts

    “Enter any two of volts, amps, ohms and watts to get the other two.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    11 inputs
    • modestring“Calculate”
    • vnumber“Voltage (V) (V)”
    • inumber“Current (I) (A)”
    • rnumber“Resistance (R) (Ω)”
    • pnumber“Power (P) (W)”
    • phasestring“Circuit”
    • solvestring“Find”
    • wattsnumber“Power (W)”
    • ampsnumber“Current (A)”
    • voltsnumber“Voltage (V)”
    • pfnumber“Power factor 1 for heaters and incandescent lamps; about 0.8–0.95 for motors and electronics.”
  • one_rep_max_calculatoron 2 other serverscalculates or converts

    “Estimate your bench, squat or deadlift max from a submaximal set: Epley, Brzycki and Lombardi 1RM side by side, plus a % of 1RM table for programming.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • weightnumber“Weight lifted”
    • unitstring“Unit”
    • repsnumber“Reps completed (reps) Most accurate with 2–10 reps taken close to failure.”
  • overtime_calculatorcalculates or converts

    “Time and a half on $20 an hour is $30.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • ratenumber“Hourly rate”
    • currencystring“Currency”
    • regularnumber“Regular hours (hrs)”
    • overtimenumber“Overtime hours (hrs)”
    • multiplierstring“Overtime rate”
  • ovulation_calculatorcalculates or converts

    “Pinpoint your likely ovulation day and six-day fertile window from your last period and cycle length, with the dates mapped out for your next four cycles.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    3 inputs
    • datestring“First day of your last period (YYYY-MM-DD)”
    • cyclenumber“Average cycle length (days)”
    • lutealnumber“Luteal phase length (days) Days from ovulation to your next period – 14 for most people.”
  • p_value_calculatorcalculates or converts

    “Turn a z, t, chi-square or F statistic into a left-, right- or two-tailed p-value, with critical values and whether it is significant at 0.05 and 0.01.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    5 inputs
    • diststring“Test statistic”
    • tailstring“Tail”
    • statnumber“z value”
    • df1number“Degrees of freedom (df)”
    • df2number“Denominator df (df₂)”
  • pace_calculatoron 3 other serverscalculates or converts

    “10 km in 50 minutes is 5:00 per km or 8:03 per mile.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    10 inputs
    • modestring“Calculate”
    • presetstring“Distance”
    • distancenumber“Custom distance”
    • distUnitstring“Unit”
    • hnumber“Time (h)”
    • mnumber“(min)”
    • snumber“(s)”
    • pmnumber“Pace (min)”
    • psnumber“(s)”
    • paceUnitstring“Per”
  • paint_calculatoron 1 other servercalculates or converts

    “A 12 × 12 ft room needs about 2 gallons for two coats.”

    Publisher declares: read-only yes · idempotent yes · open-world no

    9 inputs
    • unitstring“Units”
    • lengthnumber“Room length (ft)”
    • widthnumber“Room width (ft)”
    • heightnumber“Wall height (ft)”
    • coatsnumber“Coats”
    • doorsnumber“Doors”
    • windowsnumber“Windows”
    • ceilingstring“Paint the ceiling too?”
    • coveragenumber“Coverage (sq ft per gallon) Leave blank for a typical 350 sq ft per gallon (10 m² per liter).”

Each quoted sentence is the first sentence of the publisher’s own description. The kind of tool and the “changes data” mark are our AI model’s reading of that description, not something we tested: two differently worded runs had to agree, otherwise no label is shown, and nobody has checked them by hand. A tool without the “changes data” mark is described as only reading, searching or calculating, or the two runs did not agree. No tool was called. Read the publisher’s full description before relying on it. “Publisher declares” lists the hints the server itself sends with the tool (MCP annotations: read-only, destructive, idempotent, open-world); they are the publisher's claims, not checked by us. Inputs are the parameters in the tool's own input schema: name, declared type, whether it is required, and the first sentence of its description. The first 100 of 167 tools are listed. Read 2026-10-23.

How well are its tools described?

Features #4 and #5

How clearly this server's own tool descriptions say what a tool does, and how consistent its tool list is. The first part is an AI model's yes/no reading of each description; the second part is counted. We do not turn it into a grade.

Descriptions

AI reading of each description

Says what the tool does
100% of 120 tools
Says what it returns
100% of 120 tools
States limits, defaults or errors
11% of 45 tools
Says when to use it
67% of 120 tools
Items covered per tool
3.3 of 4 on average

Counted from the listing

Parameters with a description
100% of 921
Tools with a description
100% of 167
Typical description length
209 characters

The tool set

Counted from the listing

Tools
167
Size of the list
about 49,175 tokens for an agent to load (characters ÷ 4)
Naming
167 of 167 names use snake_case

AI reading: easy to mix up

No pair found.

The AI items cover 120 of 167 tools: for a tool where two differently worded runs disagreed, that item is left out. They were not checked by hand, and no tool was called. “Easy to mix up” means two tools whose names or descriptions overlap without saying how they differ; the AI found none, comparing tools within groups of 40. We do not rate whether the tool set is complete or whether side effects are spelled out, because our AI reading of those was not reliable enough.

How do I add it to my client?

Config from the registry entry

From the remote endpoint (Streamable HTTP)

We connected to this URL on 2026-10-23 (a read-only session: no tool was called).

Add to CursorAn install link in the format Cursor documents, holding the Cursor config below.

Claude Desktop or claude.ai
Settings → Connectors → Add custom connector, then paste:
https://calcbright.com/mcp
Cursor · .cursor/mcp.json in a project, or ~/.cursor/mcp.json
{
  "mcpServers": {
    "calcbright": {
      "url": "https://calcbright.com/mcp"
    }
  }
}
VS Code · .vscode/mcp.json
{
  "servers": {
    "calcbright": {
      "type": "http",
      "url": "https://calcbright.com/mcp"
    }
  }
}
VS Code (command line) · Bash or zsh terminal (macOS, Linux)
code --add-mcp '{"name":"calcbright","type":"http","url":"https://calcbright.com/mcp"}'
Claude Code
claude mcp add --transport http calcbright https://calcbright.com/mcp
Try it in the MCP Inspector · runs on your machine, opens in your browser · Node 22.19+
npx @modelcontextprotocol/inspector@2.11.0 --server-url https://calcbright.com/mcp --transport http
  • The server runs on the operator's infrastructure; it may ask you to sign in when you first connect.
  • The MCP Inspector lists the server's tools, resources and prompts; a tool you call there runs for real.

Built from the server's registry entry with each client's documented format (checked 2026-10-14; the Cursor link and the VS Code command 2026-10-19; the MCP Inspector command 2026-10-21). Values in < > are yours to fill in; this page never contains a key. Where the server needs a setting the entry does not declare, it can still fail to start.

Does the registry listing match what we found?

Feature #6

The registry verifies a package once, when it is published, and does not re-check it. A difference below is about the listing, not a judgement of the publisher.

Registry saysWe foundResultSource · date
Remote endpoint calcbright.com/mcpSession openedmatchesour test · 2026-10-23
No credential declared as requiredOpened a session without any credentialmatchesour test · 2026-10-23

Choosing

Record checks

Public records · not a safety rating

1 of 2 record checks met · 7 do not apply

  • Not ranked by downloads: a remote server publishes no download figure
  • Not ranked by stars: no public GitHub repository
  • MetRegistry entry is active and says how to run itActive, with a package or a remote address.
  • Not metSource repository link opensThe registry entry gives no repository link.
  • Does not applyRepository is not archivedNo public GitHub repository to read.
  • Does not applyCode pushed to the repository in the 90 days before our checkNo public GitHub repository to read.
  • Does not applyRepository publishes a security policy (SECURITY.md)No public GitHub repository to read.
  • Does not applyPackage names its licence with a standard (SPDX) identifierRemote server: it ships no package.
  • Does not applyThe version the registry lists can be installed and is not withdrawnRemote server: it ships no package.
  • Does not applynpm package carries build provenance (attestation)Remote server: it ships no package.
  • Does not applyNo known critical or high advisory in the package or its dependenciesRemote server: it ships no package.

Read from public records only: the registry entry, npm/PyPI, GitHub and advisory databases, checked 2026-10-22. No tool was called. Only “met” and “not met” are counted, so the total differs between servers; a check that does not apply or that we could not run is listed, never counted against it. It is not a safety rating. How each check works · Leaderboards

Common questions about com.calcbright/calcbright

Answered from the data above

Is com.calcbright/calcbright free to use?

Its website (calcbright.com/developers) describes a free pricing model. This is an AI-classified reading of the page on 2026-10-23, so check the page itself before relying on it.

Does com.calcbright/calcbright need an API key or sign-in?

It opened a session without any credential on 2026-10-23. The registry entry declares no required credential; no declaration is not a guarantee.

Has com.calcbright/calcbright been security tested?

Partly. 2 of the 14 checks that apply to it were exercised. We connected and read what the server declares, but did not call its tools: ProtocolProbe calls no server's tools for anything it publishes. This is our choice, not a block by the server. No security verdict is published before verification.

What can com.calcbright/calcbright do?

It lists 167 tools. In our AI model's reading of their descriptions (two runs had to agree, nobody checked it by hand), they include tools that generate content and calculate or convert. We did not call any tool, so this describes the text, not the behaviour.

Can com.calcbright/calcbright change or delete data?

None of its 167 tools is described as changing anything (our AI model's reading of the descriptions; nobody checked it by hand). We did not call any tool.

Found this page useful?

Anonymous · no sign-in

A quick, anonymous reaction — no account, no email. One per kind from your browser. The tally updates when the page is next refreshed, and it is only a rough count, never a safety rating or a measured number of people.

Similar servers

Same topic · AI-read

Active servers whose topic is also “finance-and-payments” and that have at least one tool of the same kind; most kinds in common first, then most GitHub stars. The topic and the tool kinds are an AI model's reading of the publishers' descriptions, not checked by hand. Similar is not a recommendation.

Compare with another server

Side by side: registry entry, our read-only session, the tools and the 18 classification fields. Same values as each page; no score.

Security testing

What did we test, and what did we leave out?

18 checks · features #1, #2

Not probed (we call no server's tools)

We connected and read what the server declares, but did not call its tools: ProtocolProbe calls no server's tools for anything it publishes. This is our choice, not a block by the server. No security score is given; a check we did not run is never counted as passed.

The 18 checks at a glanceour test · 2026-10-23
  1. Inventory: exercised
  2. Hidden instructions: exercised
  3. Real execution: not run · our policy
  4. Secret leak: not run · nothing to check it against
  5. Internal addresses: not run · our policy
  6. Unconfirmed changes: not run · our policy
  7. Bad input: not run · our policy
  8. Model requests: not run · nothing to check it against
  9. Sensitive questions: not run · nothing to check it against
  10. Folder boundary: not run · our policy
  11. Log leaks: not run · nothing to check it against
  12. Hidden content: not run · nothing to check it against
  13. Fake assistant turns: not applicable
  14. Token passthrough: not applicable
  15. Token audience: not applicable
  16. Sign-in redirect: not run · our policy
  17. Consent handling: not testable from outside
  18. Sign-in metadata: not applicable

2 exercised12 not run (reason given)4 not applicable

Each check ends in exactly one state: exercised, not run (with the reason), or not applicable (with the reason). 2 of the 14 checks that apply to it were exercised. We do not publish security-check outcomes for named servers.

Exercised · 2
  • 1Inventory
    tool-list    Reads the declared tools, resources and prompts.exercised
  • 2Hidden instructions
    description-poisoning    Looks for hidden instructions in tool descriptions.exercised
Not run, with the reason · 12
  • 3Real execution
    real-execution    Calls a tool and checks what really happens.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 4Secret leak
    canary-leak    Plants a fake secret and checks whether it leaks.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 5Internal addresses
    ssrf    Checks whether a tool can be steered to internal addresses.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 6Unconfirmed changes
    write-without-confirmation    Checks whether tools that change data act without asking.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 7Bad input
    error-handling    Sends bad input and watches how the server answers.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 8Model requests
    sampling    Checks whether the server asks the client's model to act for it.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 9Sensitive questions
    elicitation-sensitive-data    Checks whether the server asks users for sensitive data.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 10Folder boundary
    root-boundary    Checks whether the server reaches outside the folders it was given.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 11Log leaks
    logging-side-channel    Checks whether log messages carry data they should not.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 12Hidden content
    audience-hiding    Checks resources that hide content from the user.This check needs content the server returns, and nothing was read or called.not run · nothing to check it against
  • 16Sign-in redirect
    open-redirect    Checks the sign-in redirect for abuse.Testing the sign-in redirect means sending probes to the operator's sign-in service, which we do not do.not run · our policy
  • 17Consent handling
    confused-deputy    Checks consent handling when one service acts for another.Depends on the operator's own consent screen, which differs per server and cannot be tested from outside.not testable from outside
Does not apply to this server · 4
  • 13Fake assistant turns
    fake-assistant-turn    Checks prompts that pose as the assistant's own words.The server exposes no prompts.not applicable
  • 14Token passthrough
    token-passthrough    Checks whether the server forwards a user's token to other services.The server opened a session without sign-in, so there is no token flow to check.not applicable
  • 15Token audience
    token-audience-validation    Checks whether tokens meant for another service are accepted.The server opened a session without sign-in, so there is no token flow to check.not applicable
  • 18Sign-in metadata
    oauth-url-scheme    Checks the published sign-in metadata for unsafe URLs.No sign-in (OAuth) metadata is published, so there are no sign-in addresses to check.not applicable

Source: our own test, 2026-10-23, mcp-runtime-engine@0.1.0. Which checks count and why follows our published scoring model.

What happened during the test?

Feature #8

The steps in order, as the test record holds them.

  1. 0 msStarted a read-only session with the server's remote endpoint
  2. 478 msConnected after 0 redirects. No credential was sent or needed.
  3. Read the inventory: 167 tools, 0 resources, 0 prompts.
  4. 1,675 msFinished: 2 checks exercised.

Reference

How is it classified?

18 fields

One value per field, each with its source. Fields written by AI models are marked. A field with no value says why.

TopicAI-classified
finance-and-payments
AI-classified · 2026-10-23
Pricing modelAI-classified
free
read from calcbright.com/developers · 2026-10-23

“Every CalcBright calculator is available to apps and AI assistants – free, no API key, same engine as the website.”

Programming language
does not apply
no existing GitHub repository (server declares no repository link, so there is nothing to fetch)
Hosting type
remote (hosted by the publisher)
registry · 2026-10-23
MCP capability
tools
our test · 2026-10-23
Transport
streamable HTTP
registry · 2026-10-23
Required credentials
none declared
registry · no declaration is not a guarantee
Package registry
does not apply
remote-only server: no package is shipped, so there is no package registry
Freshness
0–30 days
registry updatedAt · 2026-10-23
Lifecycle status
active
registry · 2026-10-23
License class
does not apply
remote-only server: ships no package, so there is nothing to look up in a package registry
Integrity hash
does not apply
remote-only server: ships no package, so there is nothing to look up in a package registry
Signature / provenance
does not apply
remote-only server: ships no package, so there is nothing to look up in a package registry
Dependency advisories
does not apply
ships no package, so there are no dependencies to audit
Popularity
does not apply
remote-only server: ships no package, so there is nothing to look up in a package registry
Publisher signals
not stated
no readable GitHub owner to describe
Maintenance
does not apply
server declares no repository link, so there is nothing to fetch
Environment
the publisher's infrastructure
where it runs, from the hosting type

“Not stated” means the source did not state it; “does not apply” means it does not apply to this kind of server; “our limit” means our own lookup failed. A linked value opens the directory filtered to the same value.

Cite or correct this page

Sources and corrections

Suggested citation

ProtocolProbe. “com.calcbright/calcbright: MCP server record.” Data checked 2026-10-23. https://protocolprobe.com/mcp/servers/com.calcbright/calcbright

Figures are valid for the date shown. Our facts on this page are CC BY 4.0: reuse them with a link and the check date. Quoted text (the publisher’s descriptions, website quotes, tool names) is not ours to license.

As JSON: this record in the API · API documentation.

Badge for your README

ProtocolProbe: 1 of 2 record checks met

[![ProtocolProbe](https://protocolprobe.com/api/v1/badge/com.calcbright/calcbright)](https://protocolprobe.com/mcp/servers/com.calcbright/calcbright)

It shows this server's record-check count: facts from public records, no tool called. It is not a security rating or a pass. It links here and updates after each data reload.

Something wrong, or is this yours?

If a fact here is wrong, tell us and we will re-check it. If you operate this server, you can run our checks on it yourself with the free self-test command; we call no server’s tools ourselves for anything shown here.

Write to hello@protocolprobe.com · corrections log · methodology