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CalcBright Calculators

REMOTE · CALCBRIGHT.COM

160+ calculators: take-home pay for 166 countries, mortgage, loan, VAT, BMI, dates, units, currency.

Available components

64 Trust /100

Last scanned (15 hours ago)

Scores higher than 46% of remote servers

Reachable. Last reached 18 Oct 2026.

Category Finance and Payments

Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →

Endpoint Security63
Transport & Reachability100
Schema Quality & AI Usability63
  • AI-judged instruction clarity (good).Pass
  • Context-footprint check failed: tool/resource definitions use about 22822 tokens (~136/item across 167 items; 167 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management20
  • Stability observed for 6 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
Tool Safety75
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • 0 of 4 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "land_transfer_tax_calculator" implies "transfer" and declares readOnlyHint instead, contradicting what its own name says it does. See how to fix → Fail
  • An AI judge read all 168 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
  • Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 17 Oct 26 +1
    • “body_surface_area_calculator” added an optional parameter “heightIn” cosmetic
    • “body_surface_area_calculator” added an optional parameter “weightLb” cosmetic
    • “take_home_pay_calculator” added an optional parameter “bahrain” cosmetic
    • “401k_calculator” dropped the optional parameter “currency” cosmetic

    4 cosmetic changes on this day. Switch on “Show cosmetic changes” to see them.

  • 16 Oct 26 0
    • The server rewrote its instructions, which are the text every model session reads security
    • New tool “body_surface_area_calculator” functional
    • New tool “interest_only_mortgage_calculator” functional
    • New tool “permutation_combination_calculator” functional
    • New tool “unit_price_calculator” functional
    • New tool “weighted_average_calculator” functional
  • 15 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

  • 13 Oct 26 +1
    • Stability: unverified → 0.03 ▲ functional
  • 12 Oct 26 61

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 18 Oct 2026 · Probed https://calcbright.com/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=calcbright.com CN=WE1,O=Google Trust Services,C=US 10 Oct 2026 8 Jan 2027 ECDSA 256 ECDSA-SHA256 fd64dec770757eda0e3f86c99850958b
SANs: calcbright.com
CN=WE1,O=Google Trust Services,C=US (CA) CN=GTS Root R4,O=Google Trust Services LLC,C=US 13 Dec 2023 20 Feb 2029 ECDSA 256 ECDSA-SHA384 7ff31977972c224a76155d13b6d685e3
CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE 15 Nov 2023 28 Jan 2028 ECDSA 384 SHA256-RSA 7fe530bf331343bedd821610493d8a1b

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of calcbright.com. — Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
com. present 19718 13 Verified
calcbright.com. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200
Header Value
strict-transport-security max-age=31536000; includeSubDomains
x-content-type-options nosniff

Background: How OAuth 2.1 works in the 2026 MCP spec →

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://calcbright.com/mcp Verified 200
http (plaintext) http://calcbright.com/mcp HTTPS enforced 301 https://calcbright.com/mcp
MCP tools · 167 exposed · ~22,761 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
fha_loan_calculator ~207

FHA payments at 3.5% down include a 1.75% upfront MIP plus 0.50–0.55% a year. See the full monthly cost with tax and insurance beside a conventional loan. Web page: https://calcbright.com/fha-loan-calculator

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

No output schema declared.

No examples provided.

flooring_calculator ~158

A 12 × 12 ft room with 10% waste needs 8 boxes of 20 sq ft. Turn room size into boxes of laminate, vinyl plank, tile or hardwood to buy, and the material cost. Web page: https://calcbright.com/flooring-calculator

NameTypeReqDescription
boxnumber–Coverage per box (sq ft)
currencystring–Currency
lengthnumber–Room length (ft)
pricenumber–Price per sq ft (optional)
unitstring–Units
wastenumber–Waste allowance (%) 10% for straight lay, 15% for diagonal or herringbone.
widthnumber–Room width (ft)

No output schema declared.

No examples provided.

fraction_calculator ~99

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. Web page: https://calcbright.com/fraction-calculator

NameTypeReqDescription
astring–First fraction
bstring–Second fraction
opstring–Operation

No output schema declared.

No examples provided.

fuel_cost_calculator ~161

250 miles at 30 mpg and $3.50 a gallon is $29.17 in gas. Price any one-way or round trip in mpg, L/100 km or km/L, and split the cost between passengers. Web page: https://calcbright.com/fuel-cost-calculator

NameTypeReqDescription
currencystring–Currency
distUnitstring–Distance unit
distancenumber–Trip distance (one way)
econUnitstring–Economy unit
economynumber–Fuel economy
peoplenumber–Split cost between (people)
pricenumber–Fuel price
priceUnitstring–Price per
roundTripstring–Round trip?

No output schema declared.

No examples provided.

fuel_economy_converter ~98

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. Includes a reference chart for 4–12 L/100 km. Web page: https://calcbright.com/fuel-economy-converter

NameTypeReqDescription
fromstring–Unit
valuenumber–Fuel economy

No output schema declared.

No examples provided.

future_value_calculator ~152

How much will $10,000 plus $200 a month be worth in 10 years? This future value calculator answers that – or solves backwards for the present value of a target. Web page: https://calcbright.com/future-value-calculator

NameTypeReqDescription
amountnumber–Present value (starting amount)
compoundingstring–Compounding
contributionnumber–Periodic contribution
currencystring–Currency
frequencystring–Contribution frequency
modestring–Solve for
ratenumber–Annual interest rate (%)
timingstring–Contributions made at
yearsnumber–Number of years (years)

No output schema declared.

No examples provided.

gcc_gratuity_calculator ~154

Qatar pays 3 weeks a year, Kuwait cuts it if you resign early, Bahrain and Oman changed rules in 2023–24. End-of-service gratuity for expats in all four. Web page: https://calcbright.com/gcc-gratuity-calculator

NameTypeReqDescription
countrystring–Country of employment
endstring–Last working day Leave empty to use today's date. (YYYY-MM-DD)
reasonstring–How did employment end?
startstring–Joining date (YYYY-MM-DD)
wagenumber–Last basic monthly salary Qatar, Bahrain and Oman: basic wage only. Kuwait: the last remuneration (basic plus regular allowances).

No output schema declared.

No examples provided.

gosi_calculator ~148

Saudis on the old system pay 9.75% GOSI and employers 11.75%; expats pay nothing. Covers the rising 2024-law pension rate and the SAR 45,000 wage cap. Web page: https://calcbright.com/gosi-calculator

NameTypeReqDescription
basicnumber–Monthly basic salary
housingnumber–Monthly housing allowance Cash housing allowance – GOSI wage = basic + housing.
nationalitystring–Employee
phasestring–Contribution period Under the new law the pension rate rises by 0.5% each July until 2028.
systemstring–First registered with GOSI

No output schema declared.

No examples provided.

gpa_calculator ~252

Letter grades A to F with plus and minus, weighted by credit hours, for up to 8 courses. Get this term’s GPA on the 4.0 scale and your new cumulative GPA. Web page: https://calcbright.com/gpa-calculator

NameTypeReqDescription
c1number–Credits
c2number–Credits
c3number–Credits
c4number–Credits
c5number–Credits
c6number–Credits
c7number–Credits
c8number–Credits
credits0number–Credits completed
g1string–Course 1 grade
g2string–Course 2 grade
g3string–Course 3 grade
g4string–Course 4 grade
g5string–Course 5 grade
g6string–Course 6 grade
g7string–Course 7 grade
g8string–Course 8 grade
gpa0number–Current GPA

No output schema declared.

No examples provided.

grade_calculator ~105

At 88% with a final worth 25%, you need 96% on the final to finish with an A. Enter your grade, the exam weight and your target to see the score you need. Web page: https://calcbright.com/grade-calculator

NameTypeReqDescription
currentnumber–Current grade (%)
targetnumber–Grade you want (%)
weightnumber–Final exam weight (%) Share of the overall grade the final is worth.

No output schema declared.

No examples provided.

gravel_calculator ~195

A 10 × 10 ft bed 3 in deep takes 0.93 cubic yards of gravel – about 1.31 tons. Size gravel, stone, sand, topsoil or mulch orders in yards, m³, tons or bags. Web page: https://calcbright.com/gravel-calculator

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

No output schema declared.

No examples provided.

gst_calculator ~113

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. Web page: https://calcbright.com/gst-calculator

NameTypeReqDescription
amountnumber–Amount excluding GST
currencystring–Currency
modestring–Calculation
ratestring–GST rate
supplystring–Type of supply

No output schema declared.

No examples provided.

heart_rate_zone_calculator ~125

Zone 2 for a 30-year-old is 114–133 bpm by 220 − age. Get all five training zones from your age, using 220 − age or Tanaka, or personalise them with resting HR. Web page: https://calcbright.com/heart-rate-zone-calculator

NameTypeReqDescription
agenumber–Age (years)
formulastring–Max heart rate formula
restingnumber–Resting heart rate (optional) (bpm) Add it to use the Karvonen (heart-rate reserve) method.

No output schema declared.

No examples provided.

height_converter ~109

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. Includes a height chart from 150 cm to 200 cm. Web page: https://calcbright.com/height-converter

NameTypeReqDescription
cmnumber–Height (cm)
feetnumber–Feet (ft)
inchesnumber–Inches (in)
modestring–Convert

No output schema declared.

No examples provided.

heloc_calculator ~161

Your HELOC limit is home value × CLTV minus the mortgage. See that limit, the interest-only draw payment and the jump when the repayment period begins. Web page: https://calcbright.com/heloc-calculator

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

No output schema declared.

No examples provided.

hijri_date_converter ~129

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. Web page: https://calcbright.com/hijri-date-converter

NameTypeReqDescription
gdatestring–Gregorian date Years 1902–2076 (Umm al-Qura calendar). (YYYY-MM-DD)
hdnumber–Hijri day
hmstring–Hijri month
hynumber–Hijri year (AH)
modestring–Convert

No output schema declared.

No examples provided.

holiday_entitlement_calculator ~219

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. Web page: https://calcbright.com/holiday-entitlement-calculator

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

No output schema declared.

No examples provided.

home_affordability_calculator ~189

On $100,000 a year the 28/36 rule caps housing at $2,333 a month. This home affordability calculator turns that cap, your debts and down payment into a price. Web page: https://calcbright.com/home-affordability-calculator

NameTypeReqDescription
currencystring–Currency
debtsnumber–Monthly debt payments Car, student, card minimums, etc.
downnumber–Down payment
dtinumber–Total DTI limit (back-end) (%)
frontnumber–Housing ratio (front-end) (%)
incomenumber–Gross annual income
insurancenumber–Home insurance / year
propertyTaxnumber–Property tax (% / yr)
ratenumber–Mortgage rate (%)
yearsnumber–Loan term (years)

No output schema declared.

No examples provided.

hours_calculator ~400

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. Web page: https://calcbright.com/hours-calculator

NameTypeReqDescription
currencystring–Currency
friBreaknumber–Break (min)
friEndstring–End (HH:MM, 24-hour)
friStartstring–Friday start (HH:MM, 24-hour)
monBreaknumber–Break (min)
monEndstring–End (HH:MM, 24-hour)
monStartstring–Monday start (HH:MM, 24-hour)
ratenumber–Hourly rate (optional)
satBreaknumber–Break (min)
satEndstring–End (HH:MM, 24-hour)
satStartstring–Saturday start (HH:MM, 24-hour)
sunBreaknumber–Break (min)
sunEndstring–End (HH:MM, 24-hour)
sunStartstring–Sunday start (HH:MM, 24-hour)
thuBreaknumber–Break (min)
thuEndstring–End (HH:MM, 24-hour)
thuStartstring–Thursday start (HH:MM, 24-hour)
tueBreaknumber–Break (min)
tueEndstring–End (HH:MM, 24-hour)
tueStartstring–Tuesday start (HH:MM, 24-hour)
wedBreaknumber–Break (min)
wedEndstring–End (HH:MM, 24-hour)
wedStartstring–Wednesday start (HH:MM, 24-hour)

No output schema declared.

No examples provided.

ideal_weight_calculator ~110

At 175 cm, the Devine formula puts a man’s ideal weight at 70.5 kg. Compare Robinson, Miller, Devine and Hamwi with the healthy BMI range for your height. Web page: https://calcbright.com/ideal-weight-calculator

NameTypeReqDescription
cmnumber–Height (cm)
ftnumber–Height (ft)
inchnumber–(in)
sexstring–Sex
unitsstring–Units

No output schema declared.

No examples provided.

income_tax_calculator ~195

Uses the 2026 IRS brackets and $16,100 standard deduction (Rev. Proc. 2025-32). See federal tax slice by slice, marginal vs effective rate, plus state tax. Web page: https://calcbright.com/income-tax-calculator

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

No output schema declared.

No examples provided.

inflation_calculator ~122

At 3% a year, $100 of shopping costs $134.39 in a decade. This inflation calculator projects future prices or past values using the latest official CPI rate. Web page: https://calcbright.com/inflation-calculator

NameTypeReqDescription
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)

No output schema declared.

No examples provided.

interest_only_mortgage_calculator ~127

A $300,000 loan at 6.5% costs $1,625 a month interest-only, then $2,236.72 once repayment starts. Compare it with a standard mortgage and see the extra interest. Web page: https://calcbright.com/interest-only-mortgage-calculator

NameTypeReqDescription
currencystring–Currency
ioYearsnumber–Interest-only period (years)
loannumber–Loan amount
ratenumber–Interest rate (%)
termnumber–Total loan term (years)

No output schema declared.

No examples provided.

ip_subnet_calculator ~149

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. Web page: https://calcbright.com/ip-subnet-calculator

NameTypeReqDescription
cidrnumber–Prefix length (CIDR)
ipstring–IPv4 address You can also type CIDR notation, such as 10.0.0.0/16.
splitnumber–Split into subnets (optional) Rounded up to a power of two – e.g. 4 subnets of a /24 are four /26 networks.

No output schema declared.

No examples provided.

jordan_end_of_service_calculator ~167

Jordanian workers outside social security earn one month’s wage per year of service (Labour Law Art. 32). Add arbitrary dismissal compensation and notice pay. Web page: https://calcbright.com/jordan-end-of-service-calculator

NameTypeReqDescription
coveredstring–Were you covered by social security?
endstring–End date Leave empty to use today's date. (YYYY-MM-DD)
noticestring–Did the employer give one month’s written notice?
reasonstring–How did the job end?
startstring–Start date (YYYY-MM-DD)
wagenumber–Last monthly wage The last wage you were paid. For commission or piece-rate pay, use the average of the last 12 months.

No output schema declared.

No examples provided.

jordan_social_security_calculator ~103

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. Web page: https://calcbright.com/jordan-social-security-calculator

NameTypeReqDescription
wagenumber–Monthly wage Gross monthly wage subject to social security. Capped at JOD 3,733 in 2026.

No output schema declared.

No examples provided.

land_transfer_tax_calculator ~171

A $700,000 Ontario home owes $10,475 in land transfer tax – double in Toronto. 2026 rates for every province, BC PTT, Quebec welcome tax and buyer rebates. Web page: https://calcbright.com/land-transfer-tax-calculator

NameTypeReqDescription
assessednumber–Assessed value (if higher) Tax is charged on the greater of price and assessed value.
firstTimestring–First-time home buyer?
montrealstring–Property in Montréal?
nsRatenumber–Municipal deed transfer tax rate (%) Halifax: 1.5%. Check your municipality’s rate.
pricenumber–Purchase price
regionstring–Province
torontostring–Property in the City of Toronto?

No output schema declared.

No examples provided.

lcm_gcd_calculator ~100

For 12, 18 and 30 the GCD is 6 and the LCM is 180. Get both for up to 20 whole numbers, with each prime factorization shown – GCF and HCF are the same thing. Web page: https://calcbright.com/lcm-gcd-calculator

NameTypeReqDescription
numbersstring–Whole numbers 2 to 20 positive whole numbers, separated by commas or spaces.

No output schema declared.

No examples provided.

lean_body_mass_calculator ~132

A 70 kg, 175 cm man has about 56 kg of lean mass by the Boer formula. Enter your height, weight and sex to estimate lean and fat mass in kg or pounds. Web page: https://calcbright.com/lean-body-mass-calculator

NameTypeReqDescription
cmnumber–Height (cm)
ftnumber–Height (ft)
inchnumber–(in)
kgnumber–Weight (kg)
lbnumber–Weight (lb)
sexstring–Sex
unitsstring–Units

No output schema declared.

No examples provided.

loan_calculator ~131

Borrow 25,000 at 7.5% for 5 years and the EMI is about 501 a month. Get the installment, total interest and a month-by-month schedule for any fixed-rate loan. Web page: https://calcbright.com/loan-calculator

NameTypeReqDescription
amountnumber–Loan amount
currencystring–Currency
extranumber–Extra payment / month Optional prepayment added to every installment.
monthsnumber–+ months
ratenumber–Interest rate (% per year)
yearsnumber–Term (years)

No output schema declared.

No examples provided.

loan_to_value_calculator ~97

A $240,000 loan on a $300,000 home is an 80% LTV. Enter your balance and property value to see your ratio, equity and the paydown needed to reach 80%. Web page: https://calcbright.com/loan-to-value-calculator

NameTypeReqDescription
currencystring–Currency
loannumber–Loan / mortgage balance
valuenumber–Property value

No output schema declared.

No examples provided.

logarithm_calculator ~96

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. Web page: https://calcbright.com/logarithm-calculator

NameTypeReqDescription
basestring–Base
customnumber–Custom base (b)
xnumber–Number (x)

No output schema declared.

No examples provided.

macro_calculator ~163

Protein and carbs have 4 kcal per gram, fat 9. Turn your Mifflin–St Jeor calorie target into daily grams for fat loss, maintenance or gain in three splits. Web page: https://calcbright.com/macro-calculator

NameTypeReqDescription
activitystring–Activity level
agenumber–Age (years)
cmnumber–Height (cm)
dietstring–Diet style
ftnumber–Height (ft)
goalstring–Goal
inchnumber–(in)
kgnumber–Weight (kg)
lbnumber–Weight (lb)
sexstring–Sex
unitsstring–Units

No output schema declared.

No examples provided.

markup_calculator ~92

A 50% markup on a $40 cost sells at $60 – only a 33.33% margin. Set a markup on cost to see the selling price, profit per unit and the true gross margin. Web page: https://calcbright.com/markup-calculator

NameTypeReqDescription
costnumber–Cost
currencystring–Currency
markupnumber–Markup (%)

No output schema declared.

No examples provided.

morocco_severance_calculator ~176

Moroccan severance pay is 96 hours of wage a year for the first 5 years, rising to 240 hours after 15. Add abusive dismissal damages and notice pay. Web page: https://calcbright.com/morocco-severance-calculator

NameTypeReqDescription
categorystring–Job category Sets the minimum notice period.
endstring–End date Leave empty to use today's date. (YYYY-MM-DD)
noticestring–Did the employer give the notice period?
reasonstring–Type of dismissal
startstring–Start date (YYYY-MM-DD)
wagenumber–Average gross monthly wage Average over the last 52 weeks, including bonuses and benefits that are part of your pay (Labour Code Art. 54–55).

No output schema declared.

No examples provided.

mortgage_calculator ~183

A $320,000 loan at 6.5% over 30 years is about $2,023 a month before escrow. Add property tax, insurance, PMI and HOA, and see the full amortization schedule. Web page: https://calcbright.com/mortgage-calculator

NameTypeReqDescription
currencystring–Currency
downnumber–Down payment (%)
extranumber–Extra payment / month Extra principal paid every month.
hoanumber–HOA fees / month
insurancenumber–Home insurance / year
pminumber–PMI rate (if down < 20%) (%)
pricenumber–Home price
ratenumber–Interest rate (%)
taxnumber–Property tax / year
yearsnumber–Loan term (years)

No output schema declared.

No examples provided.

mortgage_payoff_calculator ~181

$200 a month extra on a $250,000, 6.5% loan saves $64,927 and 5½ years. Model extra payments, a lump sum or biweekly in this mortgage payoff calculator. Web page: https://calcbright.com/mortgage-payoff-calculator

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

No output schema declared.

No examples provided.

number_base_converter ~111

Decimal 255 is 11111111 in binary, 377 in octal and FF in hex. Convert between any bases from 2 to 36, paste 0x or 0b values, and handle 64-bit+ integers. Web page: https://calcbright.com/number-base-converter

NameTypeReqDescription
customnumber–Custom base Used for custom input and shown as an extra result.
fromstring–Input base
valuestring–Number to convert

No output schema declared.

No examples provided.

number_to_words_converter ~93

Writing a check? Get the amount line in words, such as “and 45/100 dollars”, or spell out any number up to 999 trillion – including Indian lakh and crore. Web page: https://calcbright.com/number-to-words-converter

NameTypeReqDescription
systemstring–Numbering system
unitstring–Currency for cheques
valuestring–Number

No output schema declared.

No examples provided.

ohms_law_calculator ~199

Enter any two of volts, amps, ohms and watts to get the other two. Also converts watts to amps for DC, single-phase and three-phase AC with power factor. Web page: https://calcbright.com/ohms-law-calculator

NameTypeReqDescription
ampsnumber–Current (A)
inumber–Current (I) (A)
modestring–Calculate
pnumber–Power (P) (W)
pfnumber–Power factor 1 for heaters and incandescent lamps; about 0.8–0.95 for motors and electronics.
phasestring–Circuit
rnumber–Resistance (R) (Ω)
solvestring–Find
vnumber–Voltage (V) (V)
voltsnumber–Voltage (V)
wattsnumber–Power (W)

No output schema declared.

No examples provided.

one_rep_max_calculator ~114

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. Web page: https://calcbright.com/one-rep-max-calculator

NameTypeReqDescription
repsnumber–Reps completed (reps) Most accurate with 2–10 reps taken close to failure.
unitstring–Unit
weightnumber–Weight lifted

No output schema declared.

No examples provided.

overtime_calculator ~108

Time and a half on $20 an hour is $30. Enter your rate plus regular and overtime hours to see overtime pay, double time and gross pay for the week. Web page: https://calcbright.com/overtime-calculator

NameTypeReqDescription
currencystring–Currency
multiplierstring–Overtime rate
overtimenumber–Overtime hours (hrs)
ratenumber–Hourly rate
regularnumber–Regular hours (hrs)

No output schema declared.

No examples provided.

ovulation_calculator ~114

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. Web page: https://calcbright.com/ovulation-calculator

NameTypeReqDescription
cyclenumber–Average cycle length (days)
datestring–First day of your last period (YYYY-MM-DD)
lutealnumber–Luteal phase length (days) Days from ovulation to your next period – 14 for most people.

No output schema declared.

No examples provided.

p_value_calculator ~119

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. Web page: https://calcbright.com/p-value-calculator

NameTypeReqDescription
df1number–Degrees of freedom (df)
df2number–Denominator df (df₂)
diststring–Test statistic
statnumber–z value
tailstring–Tail

No output schema declared.

No examples provided.

pace_calculator ~158

10 km in 50 minutes is 5:00 per km or 8:03 per mile. Get running pace and speed from any distance and time, or your finish time for a 5K to a marathon. Web page: https://calcbright.com/pace-calculator

NameTypeReqDescription
distUnitstring–Unit
distancenumber–Custom distance
hnumber–Time (h)
mnumber–(min)
modestring–Calculate
paceUnitstring–Per
pmnumber–Pace (min)
presetstring–Distance
psnumber–(s)
snumber–(s)

No output schema declared.

No examples provided.

paint_calculator ~174

A 12 × 12 ft room needs about 2 gallons for two coats. Enter room size, doors, windows and coats to get the wall area and the gallons or liters to buy. Web page: https://calcbright.com/paint-calculator

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

No output schema declared.

No examples provided.

password_generator ~135

Make a random 8–64 character password from letters, digits and symbols and see its entropy in bits. Created on your device with crypto.getRandomValues. Web page: https://calcbright.com/password-generator

NameTypeReqDescription
digitsstring–Numbers (0–9)
lengthnumber–Password length (characters)
lowerstring–Lowercase (a–z)
similarstring–Exclude look-alike characters (I l 1 | O 0 o)
symbolsstring–Symbols (!@#…)
upperstring–Uppercase (A–Z)

No output schema declared.

No examples provided.

pay_raise_calculator ~151

A 5% pay raise on $60,000 adds $3,000 a year. Enter a salary or hourly wage and a raise % or new figure to see the increase per year, month, week and hour. Web page: https://calcbright.com/pay-raise-calculator

NameTypeReqDescription
currencystring–Currency
currentnumber–Current annual salary
hoursnumber–Hours per week (hrs) Used to convert between hourly and annual pay (52 weeks)
methodstring–Raise given as
newPaynumber–New annual salary
payTypestring–Pay is
raisenumber–Raise (%)

No output schema declared.

No examples provided.

percent_error_calculator ~91

Measured 9.6 when the accepted value is 9.81? That is a 2.14% error. Get percent, absolute, relative and signed error for lab reports and experiments. Web page: https://calcbright.com/percent-error-calculator

NameTypeReqDescription
actualnumber–Theoretical (true) value
measurednumber–Experimental (measured) value

No output schema declared.

No examples provided.

percentage_calculator ~89

What is 15% of 200? What percent is 30 of 200? Solve percent-of, percentage change, increase and decrease questions, with the working shown for each step. Web page: https://calcbright.com/percentage-calculator

NameTypeReqDescription
anumber–Percent (X)
bnumber–Of number (Y)
modestring–Calculation

No output schema declared.

No examples provided.

Install

How do I install the CalcBright Calculators MCP server?

CalcBright Calculators is a hosted endpoint at https://calcbright.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

remote · calcbright.com

# add to Claude Code
claude mcp add --transport http com-calcbright-calcbright 'https://calcbright.com/mcp'
Common questions

What is the CalcBright Calculators MCP server?

CalcBright Calculators is an MCP server listed in the public MCP registry as com.calcbright/calcbright. 160+ calculators: take-home pay for 166 countries, mortgage, loan, VAT, BMI, dates, units, currency. This page covers its hosted endpoint (https://calcbright.com/mcp).

Is the CalcBright Calculators MCP server safe to use?

CalcBright Calculators scores 64 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the CalcBright Calculators MCP server expose?

CalcBright Calculators exposes 167 tools: mortgage_calculator, loan_calculator, compound_interest_calculator, salary_calculator, percentage_calculator, and 162 more. Their descriptions and schemas cost roughly 22,761 tokens of context every time the server is loaded.

Does the CalcBright Calculators MCP server require authentication?

No. We connected to CalcBright Calculators without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

Is the CalcBright Calculators MCP server still maintained?

CalcBright Calculators is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.