EveryCalc
REMOTE · EVERYCALC.XYZ
69 free finance, military, school and everyday calculators as MCP tools.
Available components
Last scanned (8 hours ago)
Scores higher than 64% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Finance and Payments
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 Security77
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC is configured correctly; the domain's records validate against the full chain to the root. View diagnostics → Pass
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability69
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 12944 tokens (~187/item across 69 items; 69 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 Management53
- Stability observed for 16 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
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 2 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "calculate_military_pay" implies "pay" and declares readOnlyHint instead, contradicting what its own name says it does. See how to fix → Fail
- An AI judge read all 69 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities40
- Spec-recency check failed: implements MCP spec 2025-03-26; the latest is 2026-07-28. See how to fix → Fail
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.
- 5 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.
- 30 Oct 26 +2
- DNSSEC: fail → pass ▲ security
- 28 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 27 Oct 26 +4
- HTTPS: unverified → pass ▲ security
- 26 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 24 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
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 5 Nov 2026 · Probed https://everycalc.xyz/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=everycalc.xyz | CN=WE1,O=Google Trust Services,C=US | 27 Sept 2026 | 26 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | 588c14034fc1c3020e22fa548c4c1a91 |
| SANs: everycalc.xyz, www.everycalc.xyz, *.www.everycalc.xyz | ||||||
| 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 secure
Validation of everycalc.xyz. — Secure
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| xyz. | present | 3599, 18130 | 8, 8 | Verified |
| everycalc.xyz. | present | 2371 | 13 | Verified |
| everycalc.xyz. | Verified address RRset verified with the apex keys |
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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://everycalc.xyz/mcp | Verified | 200 | |
| http (plaintext) | http://everycalc.xyz/mcp | HTTPS enforced | 301 | https://everycalc.xyz/mcp |
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 →
calculate_401k ~197
Projected 401k balance with employee contributions capped at 24500 per year, plus an employer match, compounded annually. Use when the user projects a 401k with contributions and an employer match. For a general investment projection use calculate_compound_interest; for TSP use calculate_tsp. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive 401k calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| annual_return_pct | number | yes | Annual return percent. |
| annual_salary | number | yes | Annual salary in USD. |
| contribution_pct | number | yes | Employee contribution percent of salary. |
| current_balance | number | yes | Current 401k balance in USD. |
| match_cap_pct | number | yes | Percent of salary eligible for the employer match. |
| match_pct | number | yes | Employer match percent of the matched contribution. |
| years | number | yes | Years to project. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_act_score ~201
Composite, STEM, and ELA scores from the four ACT section scores, each clamped to 1 to 36 exactly as the page does. The composite is the rounded average of the four sections. Use when the user has ACT section scores and wants the composite, STEM and ELA scores. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive ACT Score calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| english | number | yes | English section score, 1 to 36 (clamped and rounded as on the page). |
| math | number | yes | Math section score, 1 to 36 (clamped and rounded as on the page). |
| reading | number | yes | Reading section score, 1 to 36 (clamped and rounded as on the page). |
| science | number | yes | Science section score, 1 to 36 (clamped and rounded as on the page). |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_affordability ~195
Maximum home price affordable from household income using the 28/36 rule. Use when the user asks how much house they can afford on their income. For the payment on a specific home price use calculate_mortgage. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive home affordability calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| annual_income | number | yes | Gross yearly household income in USD. |
| annual_rate_pct | number | yes | Expected mortgage rate percent. |
| back_ratio_pct | number | – | Back-end ratio percent; default 36. |
| down_payment | number | – | Cash available for down payment in USD. |
| front_ratio_pct | number | – | Front-end ratio percent; default 28. |
| monthly_debts | number | – | Existing monthly debt payments in USD. |
| term_years | number | – | Loan term in years; default 30. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_aft ~280
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. Combat MOS scoring is sex-neutral and requires 350 total with every event at 60 or above; the general standard requires every event at 60 or above. Use when a soldier provides Army Fitness Test event results and wants the scores and pass or fail. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive AFT calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| deadlift_lbs | number | yes | 3-rep max deadlift weight in pounds. |
| plank_time | string | yes | Plank hold time as m:ss (or total seconds). |
| push_ups | number | yes | Hand-release push-up repetitions in 2 minutes. |
| run_time | string | yes | 2-mile run time as m:ss (or total seconds). |
| sex | string | – | Sex for the scoring tables (ignored for combat, which is sex-neutral). |
| sprint_drag_carry_time | string | yes | Sprint-drag-carry time as m:ss (or total seconds). |
| standard | string | – | Scoring standard: general or combat MOS. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_age ~158
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. Use when the user asks an exact age from a birth date, or days lived. For a plain span between two dates use calculate_date_duration. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive age calculator calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| birth_date | string | yes | Date of birth in YYYY-MM-DD format. |
| target_date | string | – | Date to calculate the age as of, in YYYY-MM-DD format. If omitted, today is used, matching the page. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_ap_exam_score ~205
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 25 percent. Use when the user estimates an AP exam score from multiple choice and free response results. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive AP Exam Score calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| frq_earned | number | yes | Free response points earned. |
| frq_total | number | yes | Total free response points possible. |
| mc_correct | number | yes | Multiple choice questions answered correctly. |
| mc_total | number | yes | Total multiple choice questions. |
| mc_weight_pct | number | – | Multiple choice weight percent for the exam (the page presets are 50, 40, 45, and 60 depending on the exam); default 50. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_arm_vs_fixed ~244
Worst case adjustable rate mortgage simulation with rate caps, compared with a fixed rate loan on total interest, payments, and the breakeven year. Use when the user compares an adjustable rate mortgage with a fixed rate loan, including the worst case. For a standard fixed payment use calculate_mortgage. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive arm vs fixed calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| arm_start_rate_pct | number | yes | ARM starting annual percent. |
| fixed_period_years | number | yes | Years before the ARM first adjusts. |
| fixed_rate_pct | number | yes | Fixed rate annual percent. |
| fully_indexed_rate_pct | number | yes | Fully indexed annual percent the ARM can adjust toward. |
| initial_cap_pct | number | yes | First adjustment cap in percentage points. |
| lifetime_cap_pct | number | yes | Lifetime cap above the start rate in percentage points. |
| loan_amount | number | yes | Loan amount in USD. |
| periodic_cap_pct | number | yes | Cap per later adjustment in percentage points. |
| term_years | number | – | Loan term in years; default 30. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_auto_loan ~204
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. Use when the user is financing a car purchase and wants the payment and total interest. For whether the car fits their budget use calculate_car_affordability; for leasing use calculate_lease_vs_buy. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive auto loan calculator calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| annual_rate_pct | number | yes | Annual rate percent, e.g. 6.5. |
| down_payment | number | – | Down payment in USD. |
| include_schedule | boolean | – | Set to true to include the yearly amortization schedule. |
| price | number | yes | Vehicle price in USD. |
| term_years | number | yes | Loan term in years. |
| trade_in | number | – | Trade-in value in USD. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_bah ~175
Monthly Basic Allowance for Housing from the 2026 RC/Transient baseline rate table by pay grade, with or without dependents, plus the annualized amount. This is the single national baseline rate; it does not vary by duty station or ZIP code. Use when the user needs a Basic Allowance for Housing baseline rate by pay grade and dependency status. For total monthly military pay use calculate_military_pay. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive BAH calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| dependents | string | – | Whether the rate is with or without dependents. |
| pay_grade | string | yes | Pay grade, e.g. E-5 or O-3. O-7+ covers O-7 to O-10. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_biweekly_mortgage ~156
Interest and time saved by paying half the monthly mortgage payment every two weeks instead of monthly. Use when the user asks what paying half the mortgage every two weeks saves versus monthly payments. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive biweekly mortgage calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| annual_rate_pct | number | yes | Annual rate percent. |
| balance | number | yes | Current mortgage balance in USD. |
| current_monthly_payment | number | – | Current monthly principal and interest payment in USD; leave at 0 to compute it from balance, rate, and term. |
| term_years | number | – | Remaining term in years; default 30. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_bmi_tdee ~184
Body mass index and category, Mifflin-St Jeor basal metabolic rate, total daily energy expenditure, and cut and bulk calorie targets. Use when the user asks about BMI category, maintenance calories, or cut and bulk targets. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive bmi and tdee calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| activity_factor | number | – | Activity multiplier, for example 1.2 sedentary, 1.55 moderately active, 1.9 extremely active; default 1.55. |
| age_years | number | yes | Age in years. |
| height_cm | number | yes | Height in centimeters. |
| sex | string | – | Sex used by the BMR formula: m or f. |
| weight_kg | number | yes | Weight in kilograms. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_brs_vs_high3 ~182
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, annual, and 30-year lifetime differences. Excludes TSP matching, continuation pay, COLA, and taxes. Use when a service member compares the legacy High-3 pension with the Blended Retirement System pension. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive BRS vs High-3 calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| high3_monthly_avg | number | yes | High-3 average monthly basic pay in USD. |
| years_of_service | number | yes | Years of service, clamped by the page to 20 to 40. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_capital_gains_tax ~181
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. Use when the user sells or plans to sell investments and needs the federal tax on the gains. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive capital gains tax calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| filing_status | string | – | Filing status: single, mfj (married filing jointly), or hoh (head of household). |
| long_term_gains | number | yes | Long term capital gains in USD. |
| ordinary_income | number | yes | Ordinary taxable income in USD, before capital gains. |
| short_term_gains | number | – | Short term capital gains in USD; default 0. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_car_affordability ~216
Monthly loan payment plus running costs (insurance, fuel, and maintenance, given as annual amounts), total interest, and the five year cost of a car. Use when the user asks what car payment fits their budget including insurance, fuel and maintenance. For loan figures on a specific car use calculate_auto_loan. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive car affordability calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| annual_rate_pct | number | yes | Loan annual rate percent. |
| down_payment | number | – | Down payment in USD; default 0. |
| fuel_annual | number | – | Fuel cost per year in USD; default 0. |
| insurance_annual | number | – | Insurance cost per year in USD; default 0. |
| maintenance_annual | number | – | Maintenance cost per year in USD; default 0. |
| term_months | number | yes | Loan term in months. |
| vehicle_price | number | yes | Vehicle price in USD. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_college_acceptance ~238
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. SAT is used when provided, otherwise ACT. Use when the user wants a rough admission chance for a college selectivity tier. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive College Acceptance calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| act | number | – | ACT composite score, used only when no SAT is given, or 0 to leave out; default 0. |
| gpa | number | yes | Unweighted GPA on the 4.0 scale. |
| sat | number | – | SAT total score, or 0 to leave out; default 0. |
| tier_base_pct | number | – | Selectivity tier base rate percent from the page: 92 open admission, 80 less selective, 50 selective, 20 highly selective, 5 most selective; default 20. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_college_major_roi ~139
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. Use when the user compares a college major's cost against its earnings payback. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive College Major ROI calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| career_years | number | – | Projected career years; default 30. |
| degree_cost | number | yes | Total degree cost in USD. |
| major | string | – | Major name from the page salary table; default Nursing. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_college_roi ~180
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 cost. Use when the user asks whether a degree pays off versus the no-degree baseline. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive College ROI calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| annual_raise_pct | number | – | Annual raise percent applied to both salaries; default 3. |
| baseline_salary | number | yes | Starting yearly salary without the degree in USD. |
| starting_salary | number | yes | Starting yearly salary with the degree in USD. |
| total_cost | number | yes | Total degree cost in USD. |
| years | number | – | Working years to project; default 10. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_compound_interest ~170
Future value of an investment with monthly contributions and monthly compounding. Use when the user asks how savings or an investment grows over time with regular contributions. For a 401k with employer match use calculate_401k; for a retirement balance use calculate_retirement_savings_planner. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive compound interest calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| annual_rate_pct | number | yes | Annual return percent. |
| include_schedule | boolean | – | Include the yearly growth schedule. |
| monthly_contribution | number | – | Added at the end of each month in USD. |
| principal | number | – | Starting balance in USD. |
| years | number | – | Projection horizon; default 30, max 100. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_credit_card_payoff ~170
Months and interest to clear a credit card balance with a fixed monthly payment, compared with adding an extra monthly payment. A payment that never clears the balance returns null months and interest. Use when the user wants to clear a credit card balance and asks how long it takes or how much interest it costs. For several different debts use calculate_debt_payoff. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive credit card payoff calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| annual_rate_pct | number | yes | Card APR percent. |
| balance | number | yes | Card balance in USD. |
| extra_payment | number | – | Extra payment added each month in USD; default 0. |
| monthly_payment | number | yes | Base monthly payment in USD. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_date_duration ~180
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. Use when the user needs the days or business days between two dates. For age from a birth date use calculate_age. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive date duration calculator calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| end_date | string | yes | End date in YYYY-MM-DD format. |
| exclude_holidays | boolean | – | Exclude 2026 US federal holidays from the business day count. |
| exclude_weekends | boolean | – | Exclude Saturdays and Sundays from the business day count. The page has this checked by default. |
| start_date | string | yes | Start date in YYYY-MM-DD format. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_debt_payoff ~287
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 first), and reports months to payoff, total interest, payoff order, and the interest and time the avalanche saves. Use when the user has several debts and wants a payoff plan comparing snowball and avalanche. For a single credit card use calculate_credit_card_payoff. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive debt payoff calculator calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| debt_aprs | array | yes | Comma-separated annual percentage rates, in the same order as the balances. |
| debt_balances | array | yes | Comma-separated debt balances in USD, in the same order as the other debt lists. Debts with a balance of 0 are skipped. |
| debt_minimums | array | yes | Comma-separated minimum monthly payments in USD, in the same order as the balances. |
| debt_names | array | – | Comma-separated debt names, in the same order as the balances, APRs, and minimums. Blank names fall back to Debt 1, Debt 2, and so on. |
| extra_payment | number | – | Extra payment each month on top of the minimums, in USD. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_dorm_vs_apartment ~203
Compares the annual dorm cost with an apartment: monthly rent over the number of months, plus annual utilities, extra food cost, and commuting cost. Returns both annual totals, the difference, and which is cheaper. Use when a student compares annual dorm cost with renting an apartment. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive Dorm vs Apartment calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| apartment_monthly_rent | number | yes | Monthly apartment rent in USD. |
| commute_annual | number | yes | Annual commuting cost for the apartment in USD. |
| dorm_annual_cost | number | yes | Annual dorm cost in USD. |
| food_extra_annual | number | yes | Annual extra food cost versus the dorm meal plan in USD. |
| months | number | – | Months of rent per year; default 12. |
| utilities_annual | number | yes | Annual utilities cost for the apartment in USD. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_emergency_fund ~178
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. Use when the user asks how big an emergency fund should be, or how close they are to the target. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive emergency fund calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| current_savings | number | – | Already saved in USD; default 0. |
| monthly_expenses | number | yes | Essential monthly expenses in USD. |
| monthly_savings | number | – | Added per month in USD; default 0. |
| months_of_coverage | number | – | Months of expenses to cover, typically 3, 6, 9, or 12; default 6. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_fafsa_sai_estimator ~176
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 plus student assets at 20 percent, plus an estimated Pell Grant of 7395 minus the SAI, floored at zero. Use when the user estimates their FAFSA Student Aid Index. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive FAFSA SAI Estimator calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| parent_assets | number | yes | Parent assets in USD. |
| parent_income | number | yes | Parent yearly income in USD. |
| student_assets | number | yes | Student assets in USD. |
| student_income | number | yes | Student yearly income in USD. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_final_exam ~154
Score needed on the final exam to reach a desired course grade, with the best and worst possible course grades. Inputs are clamped as on the page: grades to 0 to 100 and the final weight to 1 to 100. Use when the user asks what score they need on a final exam to reach a target course grade. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive Final Exam calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| current_grade_pct | number | yes | Current course grade percent. |
| desired_grade_pct | number | yes | Desired final course grade percent. |
| final_weight_pct | number | yes | Final exam weight percent of the course grade. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_gi_bill ~169
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 enrollment level. Use when the user asks what the Post-9/11 GI Bill covers or how much entitlement remains. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive GI Bill calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| enrollment | string | – | Enrollment level: full-time, part-time (over half-time), or half-time or less. |
| months_used | number | – | Months of entitlement already used, 0 to 36. |
| tier_pct | string | – | Post-9/11 GI Bill benefit tier percent based on qualifying service. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_gpa ~202
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. Grades and credits are matched by position. Use when the user computes a GPA from course grades and credits. To plan grades for a target GPA use calculate_gpa_planner. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive GPA calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| credits | array | yes | Comma-separated credit hours matching grades. |
| grades | array | yes | Comma-separated letter grades, e.g. A,B+,A-,B. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_gpa_planner ~148
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 thresholds. Use when the user asks what term GPA they need to reach a target cumulative GPA. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive GPA Planner calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| current_credits | number | yes | Credit hours already completed. |
| current_gpa | number | yes | Current cumulative GPA. |
| planned_credits | number | yes | Credit hours planned this term. |
| target_gpa | number | yes | Target cumulative GPA. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_graduate_school_roi ~149
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. Use when the user weighs graduate school cost against the salary premium it brings. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive Graduate School ROI calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| career_years | number | – | Career years after graduation; default 20. |
| current_salary | number | yes | Current yearly salary in USD. |
| post_degree_salary | number | yes | Expected yearly salary after the degree in USD. |
| total_cost | number | yes | Total graduate degree cost in USD. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_gre_score_estimator ~180
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. The optional writing score is clamped to 0 to 6 as on the page. Use when the user estimates GRE verbal and quant scores from practice results. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive GRE Score Estimator calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| quant_correct | number | yes | Quant questions answered correctly. |
| quant_total | number | yes | Total quant questions. |
| verbal_correct | number | yes | Verbal questions answered correctly. |
| verbal_total | number | yes | Total verbal questions. |
| writing_score | number | – | Analytical writing score, 0 to 6; default 4. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_high_school_course_planner ~179
Credits still needed per subject against the page requirement table for the selected state (Texas, California, New York, Florida, or Illinois). Remaining per subject is required minus earned, floored at zero. Use when the user checks remaining high school graduation credits by subject and state. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive High School Course Planner calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| electives_credits | number | yes | Elective credits earned. |
| english_credits | number | yes | English credits earned. |
| math_credits | number | yes | Math credits earned. |
| science_credits | number | yes | Science credits earned. |
| social_credits | number | yes | Social studies credits earned. |
| state | string | – | State code for the requirement table; default TX. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_income_tax_estimator ~161
Federal income tax after pretax deductions and the standard deduction for the filing status, with AGI, taxable income, marginal rate, and effective rate. Use when the user wants a federal income tax estimate for a salary. For per-paycheck take-home pay use calculate_paycheck. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive income tax estimator calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| filing_status | string | – | Filing status: single, mfj (married filing jointly), or hoh (head of household). |
| gross_income | number | yes | Gross annual income in USD. |
| pretax_deductions | number | – | Pretax deductions in USD; default 0. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_inflation ~196
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 power lost. Use when the user asks what money will be worth in the future, or what a future amount costs in today's dollars. For whether a raise keeps up use calculate_raise_vs_inflation. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive inflation calculator calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | number | yes | Amount in today's dollars. |
| annual_rate_pct | number | yes | Annual inflation rate percent, e.g. 3. |
| include_schedule | boolean | – | Set to true to include the purchasing power schedule in 5 year steps (or about 6 steps for longer horizons), matching the page table. |
| years | number | – | Years into the future. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_lease_vs_buy ~245
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. Use when the user compares leasing a car against buying it. For loan-only figures use calculate_auto_loan. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive lease vs buy calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| buy_down_payment | number | – | Buy down payment in USD; default 0. |
| buy_rate_pct | number | yes | Buy loan annual rate percent. |
| buy_term_months | number | yes | Buy loan term in months. |
| lease_down_payment | number | – | Lease down payment in USD; default 0. |
| lease_monthly_payment | number | yes | Lease monthly payment in USD. |
| lease_months | number | yes | Lease term in months. |
| money_factor | number | – | Lease money factor, for example 0.0025; default 0. |
| msrp | number | yes | Vehicle MSRP in USD. |
| residual_pct | number | yes | Residual value as a percent of MSRP at lease end. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_les_decoder ~259
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 deductions as a percent of entitlements. Negative line items count as zero, as on the page. Use when the user has Leave and Earnings Statement lines and wants the net pay explained. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive LES decoder calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| bah | number | – | BAH entitlement in USD. |
| bas | number | – | BAS entitlement in USD. |
| base_pay | number | – | Base pay entitlement in USD. |
| federal_tax | number | – | Federal tax deduction in USD. |
| fica | number | – | FICA deduction in USD. |
| other_deductions | number | – | Other deductions in USD. |
| other_entitlements | number | – | Other entitlements in USD. |
| sgli | number | – | SGLI deduction in USD. |
| state_tax | number | – | State tax deduction in USD. |
| tsp | number | – | TSP deduction in USD. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_loan ~149
Monthly payment, total interest, and optional amortization schedule for an amortizing loan. Use when the user wants the payment, total interest or payoff schedule for a generic loan. For cars use calculate_auto_loan; for homes calculate_mortgage; for student debt calculate_student_loan_payoff. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive loan calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| annual_rate_pct | number | yes | Annual rate percent. |
| include_schedule | boolean | – | Include the yearly amortization schedule. |
| principal | number | yes | Amount borrowed in USD. |
| term_years | number | yes | Term in years. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_lsat_score_estimator ~186
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. Use when the user estimates an LSAT scaled score from practice section results. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive LSAT Score Estimator calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| section1_correct | number | yes | Section 1 questions answered correctly. |
| section1_total | number | yes | Total section 1 questions. |
| section2_correct | number | yes | Section 2 questions answered correctly. |
| section2_total | number | yes | Total section 2 questions. |
| section3_correct | number | yes | Section 3 questions answered correctly. |
| section3_total | number | yes | Total section 3 questions. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
calculate_mcat_score_estimator ~215
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. Use when the user estimates MCAT section scores from practice results. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive MCAT Score Estimator calculator.
| Name | Type | Req | Description |
|---|---|---|---|
| section1_correct | number | yes | Section 1 questions answered correctly. |
| section1_total | number | yes | Total section 1 questions. |
| section2_correct | number | yes | Section 2 questions answered correctly. |
| section2_total | number | yes | Total section 2 questions. |
| section3_correct | number | yes | Section 3 questions answered correctly. |
| section3_total | number | yes | Total section 3 questions. |
| section4_correct | number | yes | Section 4 questions answered correctly. |
| section4_total | number | yes | Total section 4 questions. |
| Name | Type | Req | Description |
|---|---|---|---|
| calculator_url | string | yes | Deep link to the matching interactive calculator on everycalc.xyz. |
| inputs | object | – | The normalized inputs the calculation used. |
| note | string | yes | Disclaimer that accompanies every result. |
| ok | boolean | yes | True when the calculation succeeded. |
| results | object | yes | The computed figures for this calculator. |
| tool | string | yes | Name of the tool that ran. |
No examples provided.
How do I install the EveryCalc MCP server?
EveryCalc is a hosted endpoint at https://everycalc.xyz/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 · everycalc.xyz
claude mcp add --transport http xyz-everycalc-every-calc 'https://everycalc.xyz/mcp'
What is the EveryCalc MCP server?
EveryCalc is an MCP server listed in the public MCP registry as xyz.everycalc/every-calc. 69 free finance, military, school and everyday calculators as MCP tools. This page covers its hosted endpoint (https://everycalc.xyz/mcp).
Is the EveryCalc MCP server safe to use?
EveryCalc scores 75 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 EveryCalc MCP server expose?
EveryCalc exposes 69 tools: calculate_mortgage, calculate_refinance, calculate_affordability, calculate_loan, calculate_compound_interest, and 64 more. Their descriptions and schemas cost roughly 12,944 tokens of context every time the server is loaded.
Does the EveryCalc MCP server require authentication?
No. We connected to EveryCalc without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the EveryCalc MCP server still maintained?
EveryCalc is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.