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calcbright.com

Provides financial calculation tools such as mortgage, loan, compound interest, salary, and percentage calculators.

1 endpoint167 known toolsFirst detected October 13, 2026Last detected October 20, 2026

ENDPOINT 1

https://calcbright.com/mcp

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MCP server metadata

Name
calcbright
Version
1.0.0
Capabilities
tools
Server instructions

CalcBright offers 167 accurate calculators and converters (finance, health, math, dates, units, currency). Call the matching tool with the user's numbers; unspecified inputs use sensible defaults. Each result includes a "url" the user can open to see the full calculation – please share it.

Known tools 167

mortgage_calculator

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

Inferred read-only
loan_calculator

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

Inferred read-only
compound_interest_calculator

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

Inferred read-only
salary_calculator

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

Inferred read-only
percentage_calculator

What is 15% of 200?

Inferred read-only
age_calculator

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.

Inferred read-only
bmi_calculator

70 kg at 1.75 m is a BMI of 22.9.

Inferred read-only
unit_converter

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.

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currency_converter

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.

Inferred read-only
time_zone_converter

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

Inferred read-only
401k_calculator

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.

Inferred read-only
amortization_calculator

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

Potential side effects
annuity_calculator

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.

Potential side effects
apr_calculator

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

Inferred read-only
area_calculator

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

Inferred read-only
auto_loan_calculator

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.

Potential side effects
average_calculator

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.

Inferred read-only
bmr_calculator

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.

Inferred read-only
body_fat_calculator

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.

Inferred read-only
body_surface_area_calculator

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

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break_even_calculator

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

Inferred read-only
btu_calculator

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.

Inferred read-only
budget_calculator

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.

Potential side effects
business_days_calculator

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.

Inferred read-only
cagr_calculator

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

Inferred read-only
calorie_deficit_calculator

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.

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calories_burned_calculator

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

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canadian_mortgage_calculator

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

Potential side effects
capital_gains_tax_calculator

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.

Inferred read-only
car_lease_calculator

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.

Potential side effects
case_converter

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

Inferred read-only
cd_calculator

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.

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circle_calculator

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

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color_converter

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.

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commission_calculator

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

Potential side effects
concrete_calculator

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.

Potential side effects
confidence_interval_calculator

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.

Inferred read-only
cooking_converter

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.

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countdown_calculator

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

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credit_card_payoff_calculator

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

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date_calculator

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

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date_difference_calculator

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

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day_of_week_calculator

What day of the week was it?

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debt_payoff_calculator

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.

Inferred read-only
debt_to_income_calculator

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.

Inferred read-only
depreciation_calculator

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

Inferred read-only
discount_calculator

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%.

Inferred read-only
dividend_yield_calculator

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

Inferred read-only
dld_fee_calculator

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

Inferred read-only
down_payment_calculator

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.

Potential side effects
dubai_mortgage_calculator

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

Inferred read-only
egypt_end_of_service_calculator

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

Potential side effects
egypt_social_insurance_calculator

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

Potential side effects
electricity_cost_calculator

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

Inferred read-only
exponent_calculator

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.

Inferred read-only
fd_calculator

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.

Inferred read-only
fha_loan_calculator

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

Inferred read-only
flooring_calculator

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

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fraction_calculator

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.

Inferred read-only
fuel_cost_calculator

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

Inferred read-only
fuel_economy_converter

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.

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future_value_calculator

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

Inferred read-only
gcc_gratuity_calculator

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

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gosi_calculator

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

Potential side effects
gpa_calculator

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

Inferred read-only
grade_calculator

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

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gravel_calculator

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

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gst_calculator

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.

Potential side effects
heart_rate_zone_calculator

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

Inferred read-only
height_converter

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.

Inferred read-only
heloc_calculator

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

Inferred read-only
hijri_date_converter

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.

Inferred read-only
holiday_entitlement_calculator

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.

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home_affordability_calculator

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

Inferred read-only
hours_calculator

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.

Inferred read-only
ideal_weight_calculator

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

Inferred read-only
income_tax_calculator

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

Inferred read-only
inflation_calculator

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

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interest_only_mortgage_calculator

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

Inferred read-only
ip_subnet_calculator

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.

Inferred read-only
jordan_end_of_service_calculator

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

Inferred read-only
jordan_social_security_calculator

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.

Inferred read-only
land_transfer_tax_calculator

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

Potential side effects
lcm_gcd_calculator

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

Inferred read-only
lean_body_mass_calculator

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

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loan_to_value_calculator

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

Inferred read-only
logarithm_calculator

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.

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macro_calculator

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

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markup_calculator

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

Inferred read-only
morocco_severance_calculator

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

Potential side effects
mortgage_payoff_calculator

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

Inferred read-only
number_base_converter

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

Inferred read-only
number_to_words_converter

Writing a check?

Inferred read-only
ohms_law_calculator

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

Inferred read-only
one_rep_max_calculator

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.

Inferred read-only
overtime_calculator

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

Inferred read-only
ovulation_calculator

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.

Inferred read-only
p_value_calculator

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.

Inferred read-only
pace_calculator

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

Inferred read-only
paint_calculator

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

Inferred read-only
password_generator

Make a random 8–64 character password from letters, digits and symbols and see its entropy in bits.

Inferred read-only
pay_raise_calculator

A 5% pay raise on $60,000 adds $3,000 a year.

Potential side effects
percent_error_calculator

Measured 9.6 when the accepted value is 9.81?

Inferred read-only
percentage_change_calculator

80 to 100 is a 25% increase but only a 22.22% difference.

Inferred read-only
period_calculator

Predict your next six periods from the date your last one started and your cycle length, with ovulation days and fertile windows on the same calendar.

Inferred read-only
permutation_combination_calculator

Choosing 3 from 10 items gives 720 ordered arrangements (nPr) or 120 combinations (nCr).

Inferred read-only
pregnancy_due_date_calculator

Your due date is 280 days from your last period, adjusted here for cycle length.

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prime_number_checker

Is 91 prime?

Inferred read-only
profit_margin_calculator

$60 cost and a $100 price is a 40% profit margin but a 66.67% markup.

Inferred read-only
prorated_rent_calculator

Moving in on 11 March with $1,500 rent costs $1,016.13 for the first month.

Inferred read-only
protein_calculator

How many grams of protein a day?

Inferred read-only
pythagorean_theorem_calculator

Legs of 3 and 4 give a hypotenuse of 5.

Inferred read-only
quadratic_equation_solver

Solve ax² + bx + c = 0 with the quadratic formula: the discriminant, real or complex roots and the vertex of the parabola, with every step written out.

Inferred read-only
ramadan_countdown_calculator

How many days until Ramadan, Eid al-Fitr and Eid al-Adha?

Inferred read-only
random_number_generator

Draw one number or up to 1,000 from any range – whole or decimal, with or without repeats.

Inferred read-only
ratio_calculator

Solve A:B = C:D for the missing value or reduce a ratio to lowest terms – 1920:1080 becomes 16:9.

Inferred read-only
redundancy_pay_calculator

UK statutory redundancy pay calculator for 2026/27: age bands, up to 20 years’ service and the new £751 weekly pay cap (£783 in Northern Ireland).

Potential side effects
refinance_calculator

Will a lower rate pay off?

Potential side effects
rent_affordability_calculator

A $60,000 salary supports about $1,500 rent.

Inferred read-only
rent_vs_buy_calculator

This rent vs buy calculator weighs the true cost of owning – interest, tax, upkeep, lost returns and equity – against renting, to find the break-even year.

Inferred read-only
retirement_calculator

$800 a month from age 35 at 7% grows to about $1.38 million by 65.

Inferred read-only
roi_calculator

Turning $10,000 into $15,000 is a 50% return, or 14.47% a year over 3 years.

Inferred read-only
roman_numeral_converter

MCMXCIX is 1999 and 2026 is MMXXVI.

Inferred read-only
roth_ira_calculator

Check the 2026 Roth IRA limit ($7,500, or $8,600 at 50+) and the income phase-out for your MAGI, then project your tax-free balance against a taxable account.

Inferred read-only
rrsp_calculator

New 2026 RRSP room is 18% of 2025 earned income, up to $33,810.

Inferred read-only
rule_of_72_calculator

At 8% a year, money doubles in 72 ÷ 8 = 9 years.

Inferred read-only
sales_tax_calculator

Add sales tax to a price or pull it out of a receipt: $127.50 at 6.25% is $120 before tax.

Inferred read-only
sample_size_calculator

385 responses give ±5% at 95% confidence.

Inferred read-only
saudi_end_of_service_calculator

Saudi end of service award: half a month’s wage a year for the first 5 years, a full month after, reduced on resignation (Labour Law Art.

Inferred read-only
savings_goal_calculator

Need $50,000 in 5 years?

Inferred read-only
scientific_calculator

Type 2^10 + √144 × sin(30) the way you would write it and get each step back.

Potential side effects
scientific_notation_converter

299,792,458 is 2.99792458 × 10⁸.

Inferred read-only
self_employment_tax_calculator

1099 income?

Inferred read-only
shoe_size_converter

A US men's 9 is a UK 8.5, an EU 42.5 and 27 cm.

Inferred read-only
significant_figures_calculator

Does 0.004050 have 3 or 4 sig figs?

Inferred read-only
simple_interest_calculator

$10,000 at 5% for 3 years earns $1,500.

Inferred read-only
sip_calculator

₹10,000 a month for 10 years at 12% could reach ₹23.23 lakh.

Inferred read-only
sleep_calculator

Up at 7:00 AM?

Inferred read-only
slope_calculator

Two points in, the whole line out: slope as a fraction, y = mx + b, point-slope and standard form, the angle, distance and midpoint, each with its working.

Inferred read-only
social_security_calculator

Claim at 62 and get 70% of your benefit; wait until 70 and get 124%.

Inferred read-only
speed_distance_time_calculator

150 km in 2 h 30 min is 60 km/h.

Inferred read-only
square_footage_calculator

A 12 × 15 ft room is 180 sq ft.

Inferred read-only
square_root_calculator

√72 simplifies to 6√2 ≈ 8.4852813742.

Inferred read-only
stamp_duty_calculator

UK stamp duty calculator 2026: SDLT in England & NI, LBTT in Scotland and LTT in Wales – with first-time buyer relief, second-home and non-resident rates.

Inferred read-only
standard_deviation_calculator

Sample (n − 1) or population (N)?

Inferred read-only
student_loan_repayment_calculator

UK student loan repayment calculator for 2026/27: monthly repayments on Plans 1, 2, 4, 5 and Postgraduate, interest, years to repay and write-off.

Potential side effects
take_home_pay_calculator

Net pay after tax in 166 countries: $75,000 in Texas leaves about $61,592, £50,000 in the UK £39,520.

Potential side effects
tax_free_salary_equivalent_calculator

Convert a tax-free Gulf salary (AED, SAR, QAR, KWD, BHD, OMR) into the gross salary you would need in the US, UK or Canada to take home the same pay.

Potential side effects
tdee_calculator

Your maintenance calories are BMR × an activity factor.

Inferred read-only
tfsa_calculator

Eligible since 2009?

Inferred read-only
time_duration_calculator

9:15 AM to 5:45 PM is 8 h 30 min, or 8.5 hours.

Inferred read-only
time_to_decimal_converter

2 h 45 min is 2.75 hours, not 2.45.

Inferred read-only
tip_calculator

An 18% tip on $84 is $15.12.

Inferred read-only
triangle_calculator

Know three parts of a triangle?

Inferred read-only
uae_corporate_tax_calculator

Calculate UAE corporate tax: 0% up to AED 375,000 and 9% above, Small Business Relief (revenue ≤ AED 3M, to 2029) and the 0% free zone regime.

Inferred read-only
uae_gratuity_calculator

AED 10,000 basic for 7 years earns AED 55,000 in gratuity.

Inferred read-only
unit_price_calculator

A 500 g pack at $3.99 costs $0.80 per 100 g, so a 1 kg pack at $7.20 ($0.72) is the better buy.

Inferred read-only
unix_timestamp_converter

1700000000 is 2023-11-14T22:13:20Z.

Inferred read-only
vat_calculator

Removing 20% VAT means dividing by 1.2, not taking 20% off.

Inferred read-only
volume_calculator

A 30 × 20 × 10 cm box holds exactly 6 litres.

Inferred read-only
waist_to_hip_ratio_calculator

A waist of 86 cm over hips of 100 cm gives a WHR of 0.86.

Inferred read-only
water_intake_calculator

A 70 kg adult who exercises 30 minutes a day needs about 2.8 L of water.

Inferred read-only
week_number_calculator

January 1, 2026 is in ISO week 1, which began on December 29, 2025.

Inferred read-only
weighted_average_calculator

Scores of 85, 90 and 78 weighted 30%, 20% and 50% average 82.5, not 84.3.

Inferred read-only
word_counter

A 1,000-word article takes about 4 min 12 sec to read.

Inferred read-only
z_score_calculator

Scored 85 with a mean of 70 and SD of 10?

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zakat_calculator

Zakat is 2.5% of net wealth above the nisab.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.calcbright]
url = "https://calcbright.com/mcp"
enabled = true
Claude Code

.mcp.json

{
  "mcpServers": {
    "calcbright": {
      "type": "http",
      "url": "https://calcbright.com/mcp"
    }
  }
}
Claude Desktop

Settings → Connectors → Add custom connector

Name: calcbright
Remote MCP URL: https://calcbright.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "calcbright": {
      "url": "https://calcbright.com/mcp"
    }
  }
}
Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code
{
  "servers": {
    "calcbright": {
      "type": "http",
      "url": "https://calcbright.com/mcp"
    }
  }
}
Generic MCP

Client-specific MCP configuration

{
  "name": "calcbright",
  "transport": "streamable-http",
  "url": "https://calcbright.com/mcp"
}
MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.