MCP servers › xyz.everycalc › every-calc

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

xyz.everycalc/every-calc

69 free finance, military, school and everyday calculators as MCP tools. — the publisher's description

4 of 5 record checks metRead-only · tools listed 2026-10-23Pricing: free · AI-classifiedversion 1.0.0JavaScriptstreamable HTTP69 tools

Summary

xyz.everycalc/every-calc is a remote MCP server listed in the official MCP registry at version 1.0.0. On 2026-10-23 ProtocolProbe connected to it in read-only mode and read its inventory: 69 tools, 0 resources and 0 prompts.

Record checks

4 of 5 record checks met · 4 do not apply

met: Registry entry is active and says how to run it
met: Source repository link opens
met: Repository is not archived
met: Code pushed to the repository in the 90 days before our check
not met: 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not applicable: The version the registry lists can be installed and is not withdrawn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: 0 stars (ranked from 10)

From public records, not a safety rating. Each check with its reason · Is it safe to install?

Key facts

Runs: remote (hosted by the publisher)
Transport: streamable HTTP
Sign-in: none needed to open a session
Repository: public
Tools: 69
Described as changing data: 0 of 69 toolsAI-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: 1.0.0, published 2026-10-20 (registry, as of the 2026-10-23 snapshot)
First listed version: 2026-10-20 (earliest version still in the registry; older removed versions would be earlier)
Registry data: snapshot 2026-10-23
Package and repository: checked 2026-10-23
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 1.0.0 (published 2026-10-20).

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

69tools

0resources

0prompts

None of its 69 tools are described as changing anything.

calculate_mortgageon 2 other servers
“Monthly mortgage payment breakdown: principal and interest via the amortization formula, plus property tax, homeowner insurance, PMI, and HOA.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
10 inputs, 2 required
- home_pricenumberrequired“Purchase price in USD.”
- down_payment_usdnumber“Down payment in USD (wins over down_payment_pct).”
- down_payment_pctnumber“Down payment percent; default 20.”
- annual_rate_pctnumberrequired“Annual interest rate percent, e.g.”
- term_yearsnumber“Loan term in years; default 30.”
- property_tax_annualnumber“Yearly property tax in USD.”
- home_insurance_annualnumber“Yearly homeowner insurance in USD.”
- pmi_rate_pctnumber“Annual PMI rate percent; default 0.5.”
- hoa_monthlynumber“Monthly HOA dues in USD.”
- include_scheduleboolean“Include the yearly amortization schedule.”
calculate_refinanceon 1 other server
“Refinance break-even month and lifetime savings of refinancing a loan.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
6 inputs, 4 required
- balancenumberrequired“Current loan balance in USD.”
- current_rate_pctnumberrequired“Current annual rate percent.”
- years_leftnumberrequired“Years remaining on the current loan.”
- new_rate_pctnumberrequired“Offered annual rate percent.”
- new_term_yearsnumber“New loan term in years; default 30.”
- closing_costsnumber“Closing costs in USD.”
calculate_affordabilityon 2 other servers
“Maximum home price affordable from household income using the 28/36 rule.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
7 inputs, 2 required
- annual_incomenumberrequired“Gross yearly household income in USD.”
- monthly_debtsnumber“Existing monthly debt payments in USD.”
- down_paymentnumber“Cash available for down payment in USD.”
- annual_rate_pctnumberrequired“Expected mortgage rate percent.”
- term_yearsnumber“Loan term in years; default 30.”
- front_ratio_pctnumber“Front-end ratio percent; default 28.”
- back_ratio_pctnumber“Back-end ratio percent; default 36.”
calculate_loanon 1 other server
“Monthly payment, total interest, and optional amortization schedule for an amortizing loan.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 3 required
- principalnumberrequired“Amount borrowed in USD.”
- annual_rate_pctnumberrequired“Annual rate percent.”
- term_yearsnumberrequired“Term in years.”
- include_scheduleboolean“Include the yearly amortization schedule.”
calculate_compound_intereston 5 other servers
“Future value of an investment with monthly contributions and monthly compounding.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
5 inputs, 1 required
- principalnumber“Starting balance in USD.”
- monthly_contributionnumber“Added at the end of each month in USD.”
- annual_rate_pctnumberrequired“Annual return percent.”
- yearsnumber“Projection horizon; default 30, max 100.”
- include_scheduleboolean“Include the yearly growth schedule.”
calculate_percentageon 5 other serverscalculates or converts
“Percentage calculations in three modes: percent_of (x percent of y), what_percent (x is what percent of y), percent_change (change from old to new).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
5 inputs, 1 required
- modestringrequired“Which percentage calculation to perform.”
- xnumber“For percent_of: the percent.”
- ynumber“For percent_of: the whole.”
- oldnumber“For percent_change: the starting value.”
- newnumber“For percent_change: the ending value.”
calculate_tipon 3 other servers
“Tip amount, bill total, and per-person split.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
3 inputs, 1 required
- billnumberrequired“Bill amount in USD.”
- tip_pctnumber“Tip percent; default 20.”
- peoplenumber“Number of people; default 1.”
calculate_salarycalculates or converts
“Convert between hourly, daily, weekly, biweekly, monthly, and annual pay.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs
- modestring“Whether the input is an hourly rate or an annual salary; default hourly.”
- hourlynumber“Hourly rate in USD (hourly mode).”
- annualnumber“Annual salary in USD (annual mode).”
- hours_per_weeknumber“Hours worked per week; default 40.”
calculate_ageon 4 other serverscalculates or converts
“Exact age from a birth date to a target date, broken into years, months, and days, plus total days lived, total hours lived, the weekday of birth, and days until the next birthday.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
2 inputs, 1 required
- birth_datestringrequired“Date of birth in YYYY-MM-DD format.”
- target_datestring“Date to calculate the age as of, in YYYY-MM-DD format.”
calculate_auto_loanon 1 other server
“Monthly payment, amount financed, total interest, and total cost of a car for an auto loan after down payment and trade-in value are subtracted from the vehicle price.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
6 inputs, 3 required
- pricenumberrequired“Vehicle price in USD.”
- down_paymentnumber“Down payment in USD.”
- trade_innumber“Trade-in value in USD.”
- annual_rate_pctnumberrequired“Annual rate percent, e.g.”
- term_yearsnumberrequired“Loan term in years.”
- include_scheduleboolean“Set to true to include the yearly amortization schedule.”
calculate_date_durationcalculates or converts
“Inclusive number of days between two dates, plus business days after optionally excluding weekends and 2026 US federal holidays, calendar weeks, weekend days, and holidays in the range.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 2 required
- start_datestringrequired“Start date in YYYY-MM-DD format.”
- end_datestringrequired“End date in YYYY-MM-DD format.”
- exclude_weekendsboolean“Exclude Saturdays and Sundays from the business day count.”
- exclude_holidaysboolean“Exclude 2026 US federal holidays from the business day count.”
calculate_debt_payoffon 2 other servers
“Simulates paying off a list of debts month by month with minimum payments plus an extra monthly payment, comparing the avalanche method (highest APR first) with the snowball method (smallest balance …”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
5 inputs, 3 required
- debt_namesarray“Comma-separated debt names, in the same order as the balances, APRs, and minimums.”
- debt_balancesarrayrequired“Comma-separated debt balances in USD, in the same order as the other debt lists.”
- debt_aprsarrayrequired“Comma-separated annual percentage rates, in the same order as the balances.”
- debt_minimumsarrayrequired“Comma-separated minimum monthly payments in USD, in the same order as the balances.”
- extra_paymentnumber“Extra payment each month on top of the minimums, in USD.”

Show 57 more tools

calculate_inflation
“What an amount in today's dollars will buy after a number of years at a given annual inflation rate, what today's basket will cost then, the cumulative price increase percent, and the purchasing powe…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 2 required
- amountnumberrequired“Amount in today's dollars.”
- yearsnumber“Years into the future.”
- annual_rate_pctnumberrequired“Annual inflation rate percent, e.g.”
- include_scheduleboolean“Set to true to include the purchasing power schedule in 5 year steps (or about 6 steps for longer horizons), matching the page table.”
calculate_rent_vs_buyon 2 other servers
“Compares the net cost of buying a home (down payment, mortgage payments, tax, insurance, and maintenance, minus principal repaid and appreciation gain) with the total rent paid over the years you pla…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
11 inputs, 3 required
- pricenumberrequired“Home price in USD.”
- down_payment_pctnumber“Down payment percent of the home price.”
- annual_rate_pctnumberrequired“Mortgage annual rate percent, e.g.”
- term_yearsnumber“Loan term in years.”
- stay_yearsnumber“Years planning to stay in the home.”
- monthly_rentnumberrequired“Current monthly rent in USD.”
- rent_increase_pctnumber“Annual rent increase percent.”
- appreciation_pctnumber“Annual home appreciation percent.”
- property_tax_annualnumber“Property tax per year in USD.”
- home_insurance_annualnumber“Homeowner insurance per year in USD.”
- maintenance_pctnumber“Maintenance per year as a percent of the home value.”
calculate_roth_vs_traditional
“Compares a Roth and a traditional retirement account at the same pre-tax annual contribution: the Roth invests what is left after tax today and is tax free at withdrawal, the traditional invests the …”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
6 inputs, 1 required
- agenumber“Current age in years.”
- retirement_agenumber“Retirement age in years.”
- annual_contributionnumberrequired“Annual contribution before tax, in USD.”
- annual_return_pctnumber“Expected annual return percent.”
- current_tax_rate_pctnumber“Current marginal tax rate percent.”
- retirement_tax_rate_pctnumber“Expected tax rate in retirement percent.”
calculate_unit_convertercalculates or converts
“Converts a value between units in one category: length, weight, temperature, volume, or speed.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 1 required
- categorystring“Unit category to convert within.”
- valuenumberrequired“Value to convert.”
- from_unitstring“Unit code to convert from.”
- to_unitstring“Unit code to convert to.”
calculate_word_countercalculates or converts
“Counts words, characters, characters excluding whitespace, sentences, and paragraphs in a block of text, plus estimated reading time at 200 words per minute and speaking time at 130 words per minute.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
1 input, 1 required
- textstringrequired“The text to count.”
calculate_401k
“Projected 401k balance with employee contributions capped at 24500 per year, plus an employer match, compounded annually.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
7 inputs, 7 required
- current_balancenumberrequired“Current 401k balance in USD.”
- annual_salarynumberrequired“Annual salary in USD.”
- contribution_pctnumberrequired“Employee contribution percent of salary.”
- match_pctnumberrequired“Employer match percent of the matched contribution.”
- match_cap_pctnumberrequired“Percent of salary eligible for the employer match.”
- yearsnumberrequired“Years to project.”
- annual_return_pctnumberrequired“Annual return percent.”
calculate_arm_vs_fixed
“Worst case adjustable rate mortgage simulation with rate caps, compared with a fixed rate loan on total interest, payments, and the breakeven year.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
9 inputs, 8 required
- loan_amountnumberrequired“Loan amount in USD.”
- fixed_rate_pctnumberrequired“Fixed rate annual percent.”
- arm_start_rate_pctnumberrequired“ARM starting annual percent.”
- fixed_period_yearsnumberrequired“Years before the ARM first adjusts.”
- fully_indexed_rate_pctnumberrequired“Fully indexed annual percent the ARM can adjust toward.”
- initial_cap_pctnumberrequired“First adjustment cap in percentage points.”
- periodic_cap_pctnumberrequired“Cap per later adjustment in percentage points.”
- lifetime_cap_pctnumberrequired“Lifetime cap above the start rate in percentage points.”
- term_yearsnumber“Loan term in years; default 30.”
calculate_biweekly_mortgage
“Interest and time saved by paying half the monthly mortgage payment every two weeks instead of monthly.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 2 required
- balancenumberrequired“Current mortgage balance in USD.”
- annual_rate_pctnumberrequired“Annual rate percent.”
- term_yearsnumber“Remaining term in years; default 30.”
- current_monthly_paymentnumber“Current monthly principal and interest payment in USD; leave at 0 to compute it from balance, rate, and term.”
calculate_bmi_tdeecalculates or converts
“Body mass index and category, Mifflin-St Jeor basal metabolic rate, total daily energy expenditure, and cut and bulk calorie targets.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
5 inputs, 3 required
- height_cmnumberrequired“Height in centimeters.”
- weight_kgnumberrequired“Weight in kilograms.”
- age_yearsnumberrequired“Age in years.”
- sexstring“Sex used by the BMR formula: m or f.”
- activity_factornumber“Activity multiplier, for example 1.2 sedentary, 1.55 moderately active, 1.9 extremely active; default 1.55.”
calculate_capital_gains_taxon 2 other servers
“Federal tax on ordinary income plus short term gains at ordinary rates, with long term gains stacked at the 0, 15, and 20 percent thresholds for the filing status.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 2 required
- filing_statusstring“Filing status: single, mfj (married filing jointly), or hoh (head of household).”
- ordinary_incomenumberrequired“Ordinary taxable income in USD, before capital gains.”
- long_term_gainsnumberrequired“Long term capital gains in USD.”
- short_term_gainsnumber“Short term capital gains in USD; default 0.”
calculate_car_affordabilityon 1 other server
“Monthly loan payment plus running costs (insurance, fuel, and maintenance, given as annual amounts), total interest, and the five year cost of a car.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
7 inputs, 3 required
- vehicle_pricenumberrequired“Vehicle price in USD.”
- down_paymentnumber“Down payment in USD; default 0.”
- annual_rate_pctnumberrequired“Loan annual rate percent.”
- term_monthsnumberrequired“Loan term in months.”
- insurance_annualnumber“Insurance cost per year in USD; default 0.”
- fuel_annualnumber“Fuel cost per year in USD; default 0.”
- maintenance_annualnumber“Maintenance cost per year in USD; default 0.”
calculate_credit_card_payoff
“Months and interest to clear a credit card balance with a fixed monthly payment, compared with adding an extra monthly payment.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 3 required
- balancenumberrequired“Card balance in USD.”
- annual_rate_pctnumberrequired“Card APR percent.”
- monthly_paymentnumberrequired“Base monthly payment in USD.”
- extra_paymentnumber“Extra payment added each month in USD; default 0.”
calculate_emergency_fundon 3 other servers
“Target emergency fund for a chosen number of months of essential expenses, the remaining gap, percent funded, and months to fill it at a monthly savings rate.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 1 required
- monthly_expensesnumberrequired“Essential monthly expenses in USD.”
- months_of_coveragenumber“Months of expenses to cover, typically 3, 6, 9, or 12; default 6.”
- current_savingsnumber“Already saved in USD; default 0.”
- monthly_savingsnumber“Added per month in USD; default 0.”
calculate_income_tax_estimator
“Federal income tax after pretax deductions and the standard deduction for the filing status, with AGI, taxable income, marginal rate, and effective rate.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
3 inputs, 1 required
- filing_statusstring“Filing status: single, mfj (married filing jointly), or hoh (head of household).”
- gross_incomenumberrequired“Gross annual income in USD.”
- pretax_deductionsnumber“Pretax deductions in USD; default 0.”
calculate_lease_vs_buy
“Lease outlay over the lease term versus buy outlay net of equity in the car at the same point, with the winning option and the net cost difference.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
9 inputs, 6 required
- msrpnumberrequired“Vehicle MSRP in USD.”
- lease_monthsnumberrequired“Lease term in months.”
- lease_down_paymentnumber“Lease down payment in USD; default 0.”
- lease_monthly_paymentnumberrequired“Lease monthly payment in USD.”
- residual_pctnumberrequired“Residual value as a percent of MSRP at lease end.”
- money_factornumber“Lease money factor, for example 0.0025; default 0.”
- buy_down_paymentnumber“Buy down payment in USD; default 0.”
- buy_rate_pctnumberrequired“Buy loan annual rate percent.”
- buy_term_monthsnumberrequired“Buy loan term in months.”
calculate_net_worthon 1 other server
“Net worth, total assets, and total liabilities from comma separated asset and liability values, with optional matching names for the largest asset and liability.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 2 required
- asset_valuesarrayrequired“Asset values in USD, comma separated, in the same order as asset_names.”
- asset_namesarray“Asset names, comma separated, in the same order as asset_values.”
- liability_valuesarrayrequired“Liability values in USD, comma separated, in the same order as liability_names.”
- liability_namesarray“Liability names, comma separated, in the same order as liability_values.”
calculate_paycheckon 1 other server
“Per paycheck net pay after federal income tax, FICA (Social Security capped at 184500 of wages, Medicare, and the additional Medicare tax), a flat state tax rate, and pretax deductions.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
5 inputs, 2 required
- annual_salarynumberrequired“Annual salary in USD.”
- pay_frequencynumber“Paychecks per year: 52 weekly, 26 biweekly, 24 semimonthly, or 12 monthly; default 26.”
- filing_statusstring“Filing status: single, mfj (married filing jointly), or hoh (head of household).”
- pretax_deductionsnumber“Annual pretax deductions in USD; default 0.”
- state_tax_rate_pctnumberrequired“Flat state tax rate percent, applied to the full salary as on the page.”
calculate_property_tax_estimator
“Annual and monthly property tax from the home value minus any exemption, at the given tax rate, with assessed value and effective rate.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
3 inputs, 2 required
- home_valuenumberrequired“Home value in USD.”
- tax_rate_pctnumberrequired“Property tax rate percent.”
- exemption_amountnumber“Exemption amount in USD; default 0.”
calculate_raise_vs_inflationon 1 other server
“Whether a raise beats inflation: nominal new salary, inflation adjusted real salary, the real percent change, and a real raise, real pay cut, or flat verdict.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
3 inputs, 3 required
- current_salarynumberrequired“Current salary in USD.”
- raise_pctnumberrequired“Raise percent.”
- inflation_pctnumberrequired“Inflation percent over the same period.”
calculate_retirement_savings_planner
“Projected retirement balance from current savings plus monthly contributions with monthly compounding, total contributions, growth, and a 4 percent rule withdrawal figure.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
5 inputs, 3 required
- current_agenumberrequired“Current age in years.”
- retirement_agenumberrequired“Retirement age in years.”
- current_savingsnumber“Current retirement savings in USD; default 0.”
- monthly_contributionnumber“Monthly contribution in USD; default 0.”
- annual_return_pctnumberrequired“Annual return percent.”
calculate_roth_conversion
“Value of converting to a Roth now, with the tax paid out of the converted amount, versus leaving the money in a traditional account taxed at the retirement rate, after growth.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
5 inputs, 5 required
- conversion_amountnumberrequired“Amount considered for conversion in USD.”
- current_tax_rate_pctnumberrequired“Tax rate percent if converting now.”
- retirement_tax_rate_pctnumberrequired“Expected tax rate percent in retirement.”
- yearsnumberrequired“Years of growth after conversion.”
- annual_return_pctnumberrequired“Annual return percent.”
calculate_sba_loan
“Monthly payment for an SBA loan with the guarantee fee percent financed into the loan, plus the amount financed, total interest, and total cost.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 3 required
- loan_amountnumberrequired“Loan amount in USD.”
- annual_rate_pctnumberrequired“Annual rate percent.”
- term_yearsnumberrequired“Term in years.”
- guarantee_fee_pctnumber“Guarantee fee percent of the loan amount, financed into the loan; default 0.”
calculate_social_security_estimator
“Primary insurance amount from the bend point formula (1286 and 7749) applied to average indexed monthly earnings, with monthly benefits at ages 62, 67, and 70.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
2 inputs, 1 required
- aime_monthlynumberrequired“Average indexed monthly earnings in USD.”
- annual_earningsnumber“Annual earnings in USD; when above 0 it overrides aime_monthly.”
calculate_aft
“Scores all five AFT events (deadlift, hand-release push-ups, sprint-drag-carry, plank, 2-mile run) from 0 to 100 each using the 17-21 anchor tables, for a 500-point total.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
7 inputs, 5 required
- standardstring“Scoring standard: general or combat MOS.”
- sexstring“Sex for the scoring tables (ignored for combat, which is sex-neutral).”
- deadlift_lbsnumberrequired“3-rep max deadlift weight in pounds.”
- push_upsnumberrequired“Hand-release push-up repetitions in 2 minutes.”
- sprint_drag_carry_timestringrequired“Sprint-drag-carry time as m:ss (or total seconds).”
- plank_timestringrequired“Plank hold time as m:ss (or total seconds).”
- run_timestringrequired“2-mile run time as m:ss (or total seconds).”
calculate_bah
“Monthly Basic Allowance for Housing from the 2026 RC/Transient baseline rate table by pay grade, with or without dependents, plus the annualized amount.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
2 inputs, 1 required
- pay_gradestringrequired“Pay grade, e.g.”
- dependentsstring“Whether the rate is with or without dependents.”
calculate_brs_vs_high3
“Pension-only comparison of the legacy High-3 system (2.5 percent per year of service) against the Blended Retirement System (2.0 percent per year) on the same high-3 average basic pay: monthly, annua…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
2 inputs, 2 required
- years_of_servicenumberrequired“Years of service, clamped by the page to 20 to 40.”
- high3_monthly_avgnumberrequired“High-3 average monthly basic pay in USD.”
calculate_gi_bill
“Months of the 36-month Post-9/11 GI Bill entitlement remaining, tuition coverage percent, maximum annual books stipend, and Monthly Housing Allowance treatment for the given benefit tier and enrollme…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
3 inputs
- tier_pctstring“Post-9/11 GI Bill benefit tier percent based on qualifying service.”
- months_usednumber“Months of entitlement already used, 0 to 36.”
- enrollmentstring“Enrollment level: full-time, part-time (over half-time), or half-time or less.”
calculate_les_decoder
“Net pay from a Leave and Earnings Statement: sums the entitlement lines (base pay, BAH, BAS, other) and deduction lines (federal tax, FICA, state tax, SGLI, TSP, other), and returns net pay plus dedu…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
10 inputs
- base_paynumber“Base pay entitlement in USD.”
- bahnumber“BAH entitlement in USD.”
- basnumber“BAS entitlement in USD.”
- other_entitlementsnumber“Other entitlements in USD.”
- federal_taxnumber“Federal tax deduction in USD.”
- ficanumber“FICA deduction in USD.”
- state_taxnumber“State tax deduction in USD.”
- sglinumber“SGLI deduction in USD.”
- tspnumber“TSP deduction in USD.”
- other_deductionsnumber“Other deductions in USD.”
calculate_military_payreads or searches
“Monthly basic pay from the 2026 pay table for a pay grade and years of service, plus the annualized amount.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
2 inputs, 2 required
- pay_gradestringrequired“Pay grade.”
- years_of_servicenumberrequired“Years of service.”
calculate_military_retirement_pensionreads or searches
“Monthly retired pay estimate: years of service times the system multiplier (2.0 percent per year for BRS, 2.5 percent per year for High-3) times the high-3 average monthly basic pay, before taxes, pl…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
3 inputs, 2 required
- systemstring“Retirement system: brs (2.0 percent per year) or high3 (2.5 percent per year).”
- years_of_servicenumberrequired“Years of service.”
- high3_monthly_avgnumberrequired“High-3 average monthly basic pay in USD.”
calculate_pcs_movereads or searches
“Estimated PCS move money: Dislocation Allowance (DLA) plus Temporary Lodging Expense (TLE, days capped at 21) plus the gross Personally Procured Move (PPM) reimbursement, with the PPM profit after mo…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
6 inputs
- dlanumber“Dislocation Allowance in USD.”
- tle_daysnumber“Temporary Lodging Expense days, capped at 21.”
- tle_ratenumber“Daily TLE rate in USD.”
- ppm_weightnumber“PPM shipment weight in pounds.”
- ppm_ratenumber“PPM reimbursement rate per pound in USD.”
- ppm_costsnumber“Actual PPM moving costs in USD.”
calculate_sgli_vs_private_insurancereads or searches
“Cost comparison of SGLI (0.06 USD per 1,000 USD of coverage per month plus a 1 USD monthly fee) against a private term premium over the given number of years: monthly and total SGLI cost, total priva…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
3 inputs, 3 required
- coveragenumberrequired“Life insurance coverage amount in USD.”
- private_monthlynumberrequired“Private term insurance monthly premium in USD.”
- yearsnumberrequired“Comparison horizon in years (minimum 1, as on the page).”
calculate_tspreads or searches
“Projected TSP balance with annual employee contributions (capped at the 24,500 USD elective deferral limit used by the page) plus, when matching is on, the BRS agency contribution: 1 percent automati…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
6 inputs, 4 required
- balancenumber“Current TSP balance in USD.”
- salarynumberrequired“Annual salary (basic pay basis) in USD.”
- contrib_pctnumberrequired“Employee contribution percent of salary.”
- match_onboolean“Whether BRS agency automatic and matching contributions apply.”
- yearsnumberrequired“Projection horizon in years.”
- return_pctnumberrequired“Annual return percent.”
calculate_va_disabilityreads or searches
“Monthly VA disability compensation from the 2026 rates (2.8 percent COLA, effective Dec 1, 2025) for a combined rating from 10 to 100 percent and a dependent status, plus the annualized amount.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
2 inputs, 1 required
- ratingstringrequired“VA combined disability rating percent.”
- dependentsstring“Dependent status: alone, spouse, spouseChild, spouse2Children, or vetChild.”
calculate_act_scorereads or searches
“Composite, STEM, and ELA scores from the four ACT section scores, each clamped to 1 to 36 exactly as the page does.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 4 required
- englishnumberrequired“English section score, 1 to 36 (clamped and rounded as on the page).”
- mathnumberrequired“Math section score, 1 to 36 (clamped and rounded as on the page).”
- readingnumberrequired“Reading section score, 1 to 36 (clamped and rounded as on the page).”
- sciencenumberrequired“Science section score, 1 to 36 (clamped and rounded as on the page).”
calculate_ap_exam_scorereads or searches
“Predicted AP score from 1 to 5 using the page bands on the weighted composite percent: multiple choice and free response contributions are weighted by the exam split, then banded at 70, 55, 40, and 2…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
5 inputs, 4 required
- mc_weight_pctnumber“Multiple choice weight percent for the exam (the page presets are 50, 40, 45, and 60 depending on the exam); default 50.”
- mc_correctnumberrequired“Multiple choice questions answered correctly.”
- mc_totalnumberrequired“Total multiple choice questions.”
- frq_earnednumberrequired“Free response points earned.”
- frq_totalnumberrequired“Total free response points possible.”
calculate_college_acceptancereads or searches
“Rough acceptance chance: a selectivity tier base rate (92, 80, 50, 20, or 5 percent) adjusted by GPA and test score bands, clamped to 1 to 99 percent and labeled Safety, Target, Reach, or High reach.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 1 required
- gpanumberrequired“Unweighted GPA on the 4.0 scale.”
- satnumber“SAT total score, or 0 to leave out; default 0.”
- actnumber“ACT composite score, used only when no SAT is given, or 0 to leave out; default 0.”
- tier_base_pctnumber“Selectivity tier base rate percent from the page: 92 open admission, 80 less selective, 50 selective, 20 highly selective, 5 most selective; default 20.”
calculate_college_major_roireads or searches
“Payback years, lifetime earnings minus degree cost, and salary to cost ratio for a major, using the page table of approximate median early career salaries by major.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
3 inputs, 1 required
- majorstring“Major name from the page salary table; default Nursing.”
- degree_costnumberrequired“Total degree cost in USD.”
- career_yearsnumber“Projected career years; default 30.”
calculate_college_roireads or searches
“Earnings premium of a degree salary over a no degree baseline salary, both growing at the same annual raise rate, plus the net gain after degree cost, the break-even year, and the return multiple on …”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
5 inputs, 3 required
- total_costnumberrequired“Total degree cost in USD.”
- starting_salarynumberrequired“Starting yearly salary with the degree in USD.”
- annual_raise_pctnumber“Annual raise percent applied to both salaries; default 3.”
- yearsnumber“Working years to project; default 10.”
- baseline_salarynumberrequired“Starting yearly salary without the degree in USD.”
calculate_dorm_vs_apartmentreads or searches
“Compares the annual dorm cost with an apartment: monthly rent over the number of months, plus annual utilities, extra food cost, and commuting cost.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
6 inputs, 5 required
- dorm_annual_costnumberrequired“Annual dorm cost in USD.”
- apartment_monthly_rentnumberrequired“Monthly apartment rent in USD.”
- monthsnumber“Months of rent per year; default 12.”
- utilities_annualnumberrequired“Annual utilities cost for the apartment in USD.”
- food_extra_annualnumberrequired“Annual extra food cost versus the dorm meal plan in USD.”
- commute_annualnumberrequired“Annual commuting cost for the apartment in USD.”
calculate_fafsa_sai_estimatorreads or searches
“Simplified Student Aid Index estimate using the page formula: parent income at 22 percent plus parent assets at 12 percent, student income above the 11770 income protection allowance at 50 percent pl…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 4 required
- parent_incomenumberrequired“Parent yearly income in USD.”
- student_incomenumberrequired“Student yearly income in USD.”
- parent_assetsnumberrequired“Parent assets in USD.”
- student_assetsnumberrequired“Student assets in USD.”
calculate_final_examreads or searches
“Score needed on the final exam to reach a desired course grade, with the best and worst possible course grades.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
3 inputs, 3 required
- current_grade_pctnumberrequired“Current course grade percent.”
- desired_grade_pctnumberrequired“Desired final course grade percent.”
- final_weight_pctnumberrequired“Final exam weight percent of the course grade.”
calculate_gpaon 2 other serversreads or searches
“Credit weighted GPA on the 4.0 scale using the page grade points: A+ and A 4.0, A- 3.7, B+ 3.3, B 3.0, B- 2.7, C+ 2.3, C 2.0, C- 1.7, D+ 1.3, D 1.0, F 0.0.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
2 inputs, 2 required
- gradesarrayrequired“Comma-separated letter grades, e.g.”
- creditsarrayrequired“Comma-separated credit hours matching grades.”
calculate_gpa_plannerreads or searches
“Term GPA required over the planned credits to reach a target cumulative GPA, the maximum reachable cumulative GPA with straight As, and the grade mix the required GPA implies, using the page threshol…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 4 required
- current_gpanumberrequired“Current cumulative GPA.”
- current_creditsnumberrequired“Credit hours already completed.”
- target_gpanumberrequired“Target cumulative GPA.”
- planned_creditsnumberrequired“Credit hours planned this term.”
calculate_graduate_school_roireads or searches
“Annual salary premium after a graduate degree, break-even years on the total cost, and lifetime net over the career years, using the page formulas.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 3 required
- total_costnumberrequired“Total graduate degree cost in USD.”
- current_salarynumberrequired“Current yearly salary in USD.”
- post_degree_salarynumberrequired“Expected yearly salary after the degree in USD.”
- career_yearsnumber“Career years after graduation; default 20.”
calculate_gre_score_estimatorreads or searches
“Estimated GRE verbal and quant scores on the 130 to 170 scale: 130 plus the fraction of questions correct times 40, per section, plus the total.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
5 inputs, 4 required
- verbal_correctnumberrequired“Verbal questions answered correctly.”
- verbal_totalnumberrequired“Total verbal questions.”
- quant_correctnumberrequired“Quant questions answered correctly.”
- quant_totalnumberrequired“Total quant questions.”
- writing_scorenumber“Analytical writing score, 0 to 6; default 4.”
calculate_high_school_course_plannerreads or searches
“Credits still needed per subject against the page requirement table for the selected state (Texas, California, New York, Florida, or Illinois).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
6 inputs, 5 required
- statestring“State code for the requirement table; default TX.”
- english_creditsnumberrequired“English credits earned.”
- math_creditsnumberrequired“Math credits earned.”
- science_creditsnumberrequired“Science credits earned.”
- social_creditsnumberrequired“Social studies credits earned.”
- electives_creditsnumberrequired“Elective credits earned.”
calculate_lsat_score_estimatorreads or searches
“Estimated LSAT scaled score on the 120 to 180 scale: 120 plus the overall fraction correct across the three sections times 60, with accuracy and the page score band.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
6 inputs, 6 required
- section1_correctnumberrequired“Section 1 questions answered correctly.”
- section1_totalnumberrequired“Total section 1 questions.”
- section2_correctnumberrequired“Section 2 questions answered correctly.”
- section2_totalnumberrequired“Total section 2 questions.”
- section3_correctnumberrequired“Section 3 questions answered correctly.”
- section3_totalnumberrequired“Total section 3 questions.”
calculate_mcat_score_estimatorreads or searches
“Estimated MCAT section scores on the 118 to 132 scale: 118 plus the fraction correct times 14, per section, plus the total on the 472 to 528 scale.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
8 inputs, 8 required
- section1_correctnumberrequired“Section 1 questions answered correctly.”
- section1_totalnumberrequired“Total section 1 questions.”
- section2_correctnumberrequired“Section 2 questions answered correctly.”
- section2_totalnumberrequired“Total section 2 questions.”
- section3_correctnumberrequired“Section 3 questions answered correctly.”
- section3_totalnumberrequired“Total section 3 questions.”
- section4_correctnumberrequired“Section 4 questions answered correctly.”
- section4_totalnumberrequired“Total section 4 questions.”
calculate_premed_course_plannerreads or searches
“Progress across the 13 premed prerequisites on the page, in page order: General Chemistry I and II, Organic Chemistry I and II, Biology I and II, Physics I and II, Biochemistry, Psychology, Sociology…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
1 input, 1 required
- statusesarrayrequired“Comma-separated status for each of the 13 prerequisites in page order, each one of not, plan, prog, done, e.g.”
calculate_psat_scorereads or searches
“Estimated PSAT section scores: 160 plus the fraction correct times 600, using the page fixed totals of 48 questions per section, plus the total and the page percentile band.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
2 inputs, 2 required
- reading_writing_correctnumberrequired“Reading and writing questions answered correctly, out of 48.”
- math_correctnumberrequired“Math questions answered correctly, out of 48.”
calculate_sat_scorereads or searches
“Estimated SAT section scores: 200 plus the fraction correct times 600, using the page fixed totals of 54 reading and writing questions and 44 math questions, plus the total and the page competitivene…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
2 inputs, 2 required
- reading_writing_correctnumberrequired“Reading and writing questions answered correctly, out of 54.”
- math_correctnumberrequired“Math questions answered correctly, out of 44.”
calculate_scholarship_roi_trackerreads or searches
“Expected value of a scholarship application (award times win probability, clamped to 0 to 100 percent) and its expected value per hour of work, with the page verdict comparing that rate with an hourl…”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 4 required
- award_amountnumberrequired“Scholarship award amount in USD.”
- win_probability_pctnumberrequired“Estimated win probability percent.”
- hoursnumberrequired“Hours the application takes.”
- hourly_wagenumberrequired“Hourly wage of the job the time could go to instead, in USD.”
calculate_student_budgetreads or searches
“Monthly budget from job, parent, and aid income against rent, food, books, transport, and fun spending.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
8 inputs, 8 required
- job_incomenumberrequired“Monthly job income in USD.”
- parent_contributionnumberrequired“Monthly contribution from parents in USD.”
- aid_incomenumberrequired“Monthly financial aid income in USD.”
- rentnumberrequired“Monthly rent in USD.”
- foodnumberrequired“Monthly food spending in USD.”
- booksnumberrequired“Monthly books and supplies spending in USD.”
- transportnumberrequired“Monthly transport spending in USD.”
- funnumberrequired“Monthly fun and entertainment spending in USD.”
calculate_student_loan_payoffreads or searches
“Months to pay off a student loan and the total interest, computed month by month exactly as the page does.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 3 required
- balancenumberrequired“Loan balance in USD.”
- apr_pctnumberrequired“Annual percentage rate percent.”
- monthly_paymentnumberrequired“Monthly payment in USD.”
- extra_paymentnumber“Extra monthly payment in USD; default 100, the page default.”
calculate_textbook_costreads or searches
“Net cost of buying new, buying used, renting, and digital for a textbook.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
5 inputs, 5 required
- buy_new_pricenumberrequired“Price to buy the book new in USD.”
- buy_used_pricenumberrequired“Price to buy the book used in USD.”
- rent_pricenumberrequired“Rental price in USD.”
- digital_pricenumberrequired“Digital edition price in USD.”
- resale_valuenumberrequired“Expected resale value after the term in USD.”
calculate_transfer_credit_plannerreads or searches
“Credits remaining, terms remaining at the credits taken per term, years remaining at the terms per year, and credits per year.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world no
4 inputs, 3 required
- required_creditsnumberrequired“Total credits required for the degree.”
- completed_creditsnumberrequired“Credits already completed or transferred.”
- credits_per_termnumberrequired“Credits taken per term.”
- terms_per_yearnumber“Terms per year; default 2.”

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. 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 69 tools
Says what it returns: 100% of 69 tools
States limits, defaults or errors: 42% of 69 tools
Says when to use it: 100% of 69 tools
Items covered per tool: 3.4 of 4 on average

Counted from the listing

Parameters with a description: 100% of 319
Tools with a description: 100% of 69
Typical description length: 490 characters

The tool set

Counted from the listing

Tools: 69
Size of the list: about 31,353 tokens for an agent to load (characters ÷ 4)
Naming: 69 of 69 names use snake_case

AI reading: easy to mix up

No pair found.

The AI items cover 69 of 69 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://everycalc.xyz/mcp

Cursor · .cursor/mcp.json in a project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "every-calc": {
      "url": "https://everycalc.xyz/mcp"
    }
  }
}

VS Code · .vscode/mcp.json

{
  "servers": {
    "every-calc": {
      "type": "http",
      "url": "https://everycalc.xyz/mcp"
    }
  }
}

VS Code (command line) · Bash or zsh terminal (macOS, Linux)

code --add-mcp '{"name":"every-calc","type":"http","url":"https://everycalc.xyz/mcp"}'

Claude Code

claude mcp add --transport http every-calc https://everycalc.xyz/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://everycalc.xyz/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 says	We found	Result	Source · date
Remote endpoint everycalc.xyz/mcp	Session opened	matches	our test · 2026-10-23
No credential declared as required	Opened a session without any credential	matches	our test · 2026-10-23
Repository github.com/xOyabunx/everycalc	Opens publicly	matches	api.github.com · 2026-10-23

Who made it?

Feature #7 · lineage

Facts about the publisher. We do not turn them into a trust score.

Namespace: xyz.everycalc
GitHub owner: a personal account (xOyabunx)

Repository: github.com/xOyabunx/everycalc
Stars: 0
Repository age: 0–30 days
Last push: 0–30 days ago
Archived: no
Security policy: none found (we looked for SECURITY.md in the repository and in its owner’s .github repository)

Source: the registry entry and api.github.com · 2026-10-23; security policy read from GitHub · 2026-10-23.

Publish this server? Run these checks against it yourself before release, from your own machine: a server the command starts, or your own server at its URL after a one-time proof that you control it: npx protocolprobe-selftest.

Choosing

Record checks

Public records · not a safety rating

4 of 5 record checks met · 4 do not apply

Not ranked by downloads: a remote server publishes no download figure
Not ranked by stars: 0 stars (ranked from 10)

MetRegistry entry is active and says how to run itActive, with a package or a remote address.
MetSource repository link opensThe linked GitHub repository is public.
MetRepository is not archivedNot archived.
MetCode pushed to the repository in the 90 days before our checkLast push 0-30 days before our check.
Not metRepository publishes a security policy (SECURITY.md)No SECURITY.md in the places GitHub reads it from.
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 2026-10-23. 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 xyz.everycalc/every-calc

Answered from the data above

Is xyz.everycalc/every-calc safe to install?

We do not rate servers as safe or unsafe. 4 of its 5 applicable record checks are met (facts from public records, each listed on this page). What the records show: Its source repository opens publicly. Its repository had a push in the last 90 days. These are facts with their sources on this page, not a safety guarantee, and we did not run its tools.

Is xyz.everycalc/every-calc free to use?

Its website (everycalc.xyz/) 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 xyz.everycalc/every-calc 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 xyz.everycalc/every-calc 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 xyz.everycalc/every-calc do?

It lists 69 tools. In our AI model's reading of their descriptions (two runs had to agree, nobody checked it by hand), they include tools that read or search and calculate or convert. We did not call any tool, so this describes the text, not the behaviour.

Can xyz.everycalc/every-calc change or delete data?

None of its 69 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.

Does xyz.everycalc/every-calc publish a security policy?

We found no SECURITY.md in its repository (root, .github/ or docs/) or in its owner's .github repository.

Where is the source code of xyz.everycalc/every-calc?

In github.com/xOyabunx/everycalc, which opens publicly.

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.

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

Inventory: exercised
Hidden instructions: exercised
Real execution: not run · our policy
Secret leak: not run · nothing to check it against
Internal addresses: not run · our policy
Unconfirmed changes: not run · our policy
Bad input: not run · our policy
Model requests: not run · nothing to check it against
Sensitive questions: not run · nothing to check it against
Folder boundary: not run · our policy
Log leaks: not run · nothing to check it against
Hidden content: not run · nothing to check it against
Fake assistant turns: not applicable
Token passthrough: not applicable
Token audience: not applicable
Sign-in redirect: not run · our policy
Consent handling: not testable from outside
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-listReads the declared tools, resources and prompts.exercised
2Hidden instructions
description-poisoningLooks for hidden instructions in tool descriptions.exercised

Not run, with the reason · 12

3Real execution
real-executionCalls 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-leakPlants 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
ssrfChecks 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-confirmationChecks 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-handlingSends 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
samplingChecks 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-dataChecks 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-boundaryChecks 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-channelChecks 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-hidingChecks 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-redirectChecks 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-deputyChecks 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-turnChecks prompts that pose as the assistant's own words.The server exposes no prompts.not applicable
14Token passthrough
token-passthroughChecks 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-validationChecks 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-schemeChecks 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.

0 msStarted a read-only session with the server's remote endpoint
380 msConnected after 0 redirects. No credential was sent or needed.
Read the inventory: 69 tools, 0 resources, 0 prompts.
1,405 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

no value

No value: the two AI models (Gemini and Claude) disagreed, so neither answer is shown.

Pricing modelAI-classified

free

read from everycalc.xyz/ · 2026-10-23

“Yes. Every calculator is completely free with no account, no signup, and no limits.”

Programming language

JavaScript

api.github.com · 2026-10-23

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

owner: a personal account · repository age: 0–30 days · stars: 0–9

api.github.com · 2026-10-23

Maintenance

active

api.github.com · 2026-10-23

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. “xyz.everycalc/every-calc: MCP server record.” Data checked 2026-10-23. https://protocolprobe.com/mcp/servers/xyz.everycalc/every-calc

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](https://protocolprobe.com/api/v1/badge/xyz.everycalc/every-calc)](https://protocolprobe.com/mcp/servers/xyz.everycalc/every-calc)

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