MCP server that wraps the Dagster GraphQL API — manage runs, assets, schedules, sensors, and backfills from any MCP client
Nothing to run from here
Calcgrid is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
42
tools declared
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trust score
remote
at its publisher
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calls last 7d
What it does
China working-day data, UK bank holidays, IANA time zones and deterministic business deadlines.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http calcgrid-mcp https://tttkmbb.com/mcp
# 2 — ask your agent for something these tools do
# search_calculators, list_calculators, list_calculator_categories and 39 more
Calcgrid costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Publishernot claimed
TTAll 1 server
tttkmbb1 server
1 category
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Installation
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
Claude Codedeclared by this listing
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http calcgrid-mcp https://tttkmbb.com/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
Free on mcprush, and it answers at its publisher’s own address: this marketplace is not in the path, so there is no key of ours to hold and no card to add.
What it writes
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
What you approve
42 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Search the 530 calculators of Calcgrid by keyword (name, tags, description, category) and return ranked matches with their calculator_id, required inputs and documentation URLs. Use this first when you do not know the exact calculator_id for a task (e.g. "monthly mortgage payment", "convert miles to km", "z-score"). Do not use it to perform a calculation; call run_calculator or a typed calculate_
No parameter schema on file.
List all calculators, optionally filtered by category id (finance, health, fitness, math, geometry, statistics, conversion, physics, chemistry, everyday, food, construction, business, time, medical, engineering, weather, investing, developer, energy, photography, science, gaming, lunar, yijing). Returns calculator_id, name, description, use_when and required inputs for each. Use it to browse a wh
No parameter schema on file.
List the calculator categories with id, name, description and calculator count. Use it to orient before list_calculators. Does not perform calculations.
No parameter schema on file.
Return the full definition of one calculator: inputs (name, type, unit, range, default, enum values, example), outputs (name, unit, meaning), formula, method notes, sources, freshness, examples with expected results, FAQ and related calculators. Use it after search_calculators and before run_calculator so the call is valid on the first try. Do not use it to compute anything.
No parameter schema on file.
Run any of the 530 calculators by calculator_id with an inputs object and return the unified result envelope (values with units, formula, sources, freshness, timestamp, next_actions). Use it for every calculator that has no dedicated typed tool, once you know the calculator_id and its input names (get_calculator_schema). For the most common calculators prefer the typed tools (calculate_bmi, calcu
No parameter schema on file.
Convert a numeric value between two units of the same physical quantity (length, mass, temperature, area, volume, speed, time, data storage, energy, pressure, power, angle, fuel economy, force, frequency, density, torque). Unit symbols and common names/aliases are accepted (km, miles, °F, 'square feet', kWh, psi, mpg). Use it for any unit conversion question. Do not use it for currency (not suppo
No parameter schema on file.
List every unit symbol supported by convert_units, grouped by quantity, with names. Use it when a unit symbol is rejected with UNKNOWN_UNIT. Does not convert anything.
No parameter schema on file.
Computes the future balance of a principal earning compound interest at a chosen compounding frequency, optionally with a fixed deposit at the end of every month, and splits the result into contributions and interest. Use when: You need to project a savings account, certificate of deposit or investment balance from a starting amount, an annual rate, a term and optional monthly deposits. Do not us
No parameter schema on file.
Computes the level monthly payment of a fully amortizing fixed-rate loan from principal, annual rate and term, plus the total paid and total interest over the life of the loan. Use when: You need the monthly payment or total interest cost of an auto, personal, student or other fixed-rate installment loan given its amount, APR and term. Do not use when: You need property tax, insurance and HOA in
No parameter schema on file.
Computes the monthly principal-and-interest payment of a fixed-rate mortgage from home price, down payment, rate and term, then adds property tax, home insurance and HOA dues to give the full monthly housing payment and lifetime interest. Use when: You want the monthly cost of buying a home with a fixed-rate mortgage, including escrowed taxes and insurance, or the total interest over the loan. Do
No parameter schema on file.
Computes the tip from a bill amount and tip percentage, the total including tip, and the per-person share when the bill is split evenly. Use when: You need to add a gratuity to a restaurant, delivery or service bill and optionally divide the total among several people. Do not use when: People pay for different items or unequal shares (use bill-split), or you need to add sales tax rather than a ti
No parameter schema on file.
Builds the amortization schedule of a fixed-rate loan: the level monthly payment, a year-by-year summary of principal, interest and balance, the first 12 monthly rows, and the interest and time saved by a fixed extra monthly payment. Use when: You need to see how each payment splits into principal and interest over the life of a mortgage or loan, the balance at the end of each year, or the effect
No parameter schema on file.
Computes body mass index (BMI) from weight and height and classifies it with the WHO adult categories, plus the healthy weight range for that height. Use when: You need an adult's BMI, its WHO/CDC weight category, or the weight range that corresponds to a normal BMI (18.5–24.9) for a given height. Do not use when: The person is under 20 years old (children need age- and sex-specific BMI percentil
No parameter schema on file.
Estimates basal metabolic rate (calories burned at complete rest per day) with the Mifflin-St Jeor equation, and also reports the revised Harris-Benedict estimate. Use when: You need resting daily calorie needs for an adult from sex, weight, height and age, as a base for diet or TDEE calculations. Do not use when: You need total daily calories including activity (use tdee), the person is a child,
No parameter schema on file.
Estimates total daily energy expenditure from Mifflin-St Jeor BMR and an activity level, and derives calorie targets for maintaining, losing or gaining weight. Use when: You need daily maintenance calories for an adult, or calorie targets for a mild/standard deficit or surplus. Do not use when: The person is a child, pregnant or breastfeeding, or you only need the resting rate (use bmr). Inputs:
No parameter schema on file.
Computes running pace in min/km and min/mile and speed in km/h and mph from a distance and elapsed time, and projects the finish time for 5 km, 10 km, half marathon and marathon at that constant pace. Use when: You know a distance and the time it took (or a target time) and need the pace, the equivalent speed, or the time that pace gives over standard race distances. Do not use when: You want a r
No parameter schema on file.
Solves the three basic percentage questions (a percentage of a number, what percentage one number is of another, and the whole behind a known part and percentage). Always returns the part, the whole and the percent. Use when: You need a percentage of a value, the percentage one value represents of another, or the base value that a part and its percentage imply. Do not use when: You need the perce
No parameter schema on file.
Computes the relative change from an old value to a new value as a percentage, the signed absolute change, the new/old ratio and the symmetric percent difference. Use when: You have a starting and an ending value and need the percentage increase or decrease, or a symmetric percent difference between two comparable values. Do not use when: You need a percentage of a number (use percentage), an ann
No parameter schema on file.
Solves ax² + bx + c = 0 with the quadratic formula, reporting the discriminant, both roots (real, or complex conjugates written as strings), the vertex of the parabola and the sum and product of the roots. Use when: You need the solutions of a second-degree polynomial equation, or the vertex and discriminant of a parabola y = ax² + bx + c. Do not use when: The coefficient a is 0 (the equation is
No parameter schema on file.
Adds, subtracts, multiplies or divides two fractions, mixed numbers, whole numbers or decimals with exact integer arithmetic, returning the result in lowest terms, as a mixed number and as a decimal, with the intermediate steps. Use when: You need an exact result of an operation on two fractions (e.g. 3/4 + 1/6), including mixed numbers such as 1 1/2, rather than a rounded decimal. Do not use whe
No parameter schema on file.
Computes the area, circumference, diameter and radius of a circle from either its radius or its diameter. Lengths are unit-agnostic: the area is in the square of the input unit. Use when: You know a circle's radius or diameter and need its area, circumference or the other dimension. Do not use when: The shape is an ellipse (use ellipse), a solid ball (use sphere) or a disc with thickness (use cyl
No parameter schema on file.
Computes summary statistics for a list of numbers: count, sum, mean, median, mode, range, sample and population variance and standard deviation, standard error, coefficient of variation, quartiles (linear interpolation) and skewness. Use when: You have a set of numeric observations and need its central tendency, spread or quartiles, e.g. the standard deviation of a data set. Do not use when: You
No parameter schema on file.
Runs a one-sample, Welch two-sample (unequal variances) or paired Student t-test from raw samples or summary statistics (mean, SD, n), returning t, degrees of freedom, two- and one-sided p-values, the confidence interval and the decision at the chosen alpha. Use when: You want to test whether a sample mean differs from a hypothesised value, whether two independent groups have different means, or
No parameter schema on file.
Converts temperatures between Celsius, Fahrenheit, Kelvin and Rankine with the exact defining relations (°F = °C × 9/5 + 32, K = °C + 273.15, °R = °F + 459.67) and rejects values below absolute zero. Use when: You need a weather, cooking, body or laboratory temperature in another scale, e.g. Fahrenheit to Celsius or Celsius to Kelvin. Do not use when: You need to convert a temperature difference
No parameter schema on file.
Computes the translational kinetic energy of a moving mass from KE = ½·m·v², reported in joules, kilojoules, kilowatt-hours and kilocalories. Use when: You need the energy of motion of an object of known mass and speed (vehicle, projectile, ball), for example to compare impact or braking energies. Do not use when: Rotation contributes significantly (rotational energy ½·I·ω² is not included), spee
No parameter schema on file.
Solves Ohm's law V = I·R for whichever of voltage, current or resistance is omitted and reports the electrical power dissipated (P = V·I). Use when: You know two of voltage, current and resistance in a DC or purely resistive circuit and need the third and the power. Do not use when: The load is reactive (inductors or capacitors require impedance, not resistance), you want energy cost over time (u
No parameter schema on file.
Parses a chemical formula (including brackets, nested groups and hydrates) and sums IUPAC 2021 standard atomic weights to give the molar mass in g/mol, plus the atom count and mass-percent composition of each element. Use when: You have a chemical formula and need its molar mass (molecular weight), the number of atoms of each element, or its elemental mass-percent composition. Do not use when: Yo
No parameter schema on file.
Computes the exact age on a given date as years, months and days by Gregorian calendar arithmetic, plus total days and weeks, the weekday of birth, and the date of and days until the next birthday. Use when: You need someone's exact age on a date, the total number of days lived, the weekday they were born on, or how many days remain until their next birthday. Do not use when: You need the differe
No parameter schema on file.
Counts the days between two ISO dates and expresses the gap as weeks and days, as a calendar breakdown in years, months and days, and as business days (Monday–Friday, public holidays not excluded). Use when: You need the number of days, weeks or working days between two dates, or a calendar-style 'x years y months z days' difference. Do not use when: You want to add or subtract a number of days f
No parameter schema on file.
Tests whether a variant's conversion rate differs from the control's using the pooled two-proportion z-test, and reports both rates, absolute and relative lift, z-score, two-sided p-value, a confidence interval for the difference and the sample size needed per variant to detect the observed lift with 80 % power. Use when: You have visitors and conversions for a control and a variant (A/B test, sp
No parameter schema on file.
Converts a wall-clock date and time from one IANA time zone to another using the tz database rules built into ICU, so the daylight-saving offsets in force on that date are applied automatically. Reports both UTC offsets, the UTC instant, the weekday and the day difference. Use when: You need to know what time an event scheduled in one city corresponds to in another city or in UTC on a specific da
No parameter schema on file.
Computes the great-circle (as-the-crow-flies) distance between two points on a spherical Earth with the haversine formula, in kilometres, miles and nautical miles, together with the initial bearing, compass direction and the midpoint of the route. Use when: You need the straight-line distance between two GPS coordinates or cities, e.g. for flight distance, range checks or geofencing. Do not use w
No parameter schema on file.
Prices a European call and put with the Black-Scholes-Merton formula from spot, strike, time to expiry, risk-free rate, volatility and a continuous dividend yield, and reports d1, d2 and the Greeks (delta, gamma, vega, theta, rho). Use when: You need a theoretical European option price or its sensitivities from a given volatility, or want to check put-call parity for quoted prices. Do not use whe
No parameter schema on file.
Computes the network and broadcast addresses, subnet and wildcard masks, first and last host, usable and total addresses, address class and RFC 1918 private status for an IPv4 address in CIDR notation or with a dotted subnet mask, using 32-bit unsigned arithmetic. Use when: You need to know which subnet an IPv4 address belongs to, the host range and count of a /prefix, or the mask equivalent of a
No parameter schema on file.
Estimates how long an electric vehicle takes to charge between two states of charge from its battery capacity, the charger power (capped by the onboard charger for AC charging) and the charging efficiency, plus the energy drawn from the grid and its cost. Use when: You want to know how long an EV needs on a home wallbox, a public AC post or a DC fast charger to reach a target charge, or what the
No parameter schema on file.
Computes the near and far limits of acceptable sharpness, the total depth of field and the hyperfocal distance from focal length, f-number, focus distance and the sensor's circle of confusion, using the standard thin-lens depth-of-field equations. Use when: You need to know how much of a scene is acceptably sharp for given camera settings, or how far sharpness extends in front of and behind the f
No parameter schema on file.
Converts betting odds between American (moneyline), decimal (European) and fractional (UK) formats, auto-detecting the input format, and reports the implied probability, profit and total return for a stake. Use when: You have odds in one format and need the other two, the implied probability of a price, or the payout of a stake at those odds. Do not use when: You need the combined price of severa
No parameter schema on file.
Converts a Gregorian date to the Chinese lunisolar calendar (农历 nongli): lunar year, month (with leap-month flag), day, the sexagenary stems and branches (干支 ganzhi) of year, month and day, zodiac animal, nayin (纳音), the current 24-solar-term period and any traditional festival on that day. Use when: You need the Chinese lunar date, ganzhi day/month/year, zodiac year or current solar term for a g
No parameter schema on file.
Finds the Chinese zodiac animal (生肖 shengxiao), sexagenary year (干支 ganzhi), stem element, yin/yang, nayin (纳音) and fixed element for a birth date, using either the Chinese New Year boundary or the 立春 (Lichun) boundary, plus the traditional relationship groups (六合, 三合, 六冲, 六害, 相刑) and 本命年 years. Use when: You need someone's Chinese zodiac sign and element from a Gregorian birth date, especially f
No parameter schema on file.
Builds the Bazi (八字, Bāzì) / Four Pillars (四柱) chart of a birth date and time: year pillar by 立春 (Lìchūn), month pillar by the 节 (jié) solar terms, day pillar from the sexagenary day count, hour pillar by the 五鼠遁 (Wǔshǔdùn) rule, plus day master, five-element counts, ten gods (十神), hidden stems (藏干), 纳音 (nàyīn), void branches (空亡) and the ten-year luck pillars (大运). Use when: You need the four st
No parameter schema on file.
Identifies one of the 64 hexagrams (六十四卦, liushisi gua) from its King Wen number, name, two trigrams or line digits and returns its lines, trigrams, nuclear (互卦, hugua), inverse (综卦, zonggua) and opposite (错卦, cuogua) hexagrams, its Jing Fang palace (京房八宫, Jingfang bagong) with 世/应 (shi/ying) lines, and the received judgment text (卦辞, guaci). Use when: You need to identify or describe a hexagram,
No parameter schema on file.
Casts an I Ching hexagram by the Plum Blossom (Meihua Yishu) method of Shao Yong from the lunar year, month, day and hour (年月日时起卦) or from two or three given numbers, then derives the moving line, changed hexagram (之卦), nuclear hexagram (互卦), the 体 (Ti, self) and 用 (Yong, matter) trigrams and their five-element relations. Use when: You need a Plum Blossom hexagram cast for a moment or from number
No parameter schema on file.
Free
$0 forever
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install Calcgrid or to call it, at any volume.
Call allowance · this installenforced at the gateway
Monthly allowance, in calls
—
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Alert at 80% · then the tool returns a normal MCP error
Used this month: —
—Grade not published
No rule-by-rule report on file for this release
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
This listing is an address its publisher runs, and you connect to it directly — this marketplace is not in the path. The scanner reads packages and public source, and an address is neither. So there is no grade — not a withheld one, an unmeasured one.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 1.9.0.
1.9.0
undated
latestNo release note was published with this version.
—
no reviews yet
Who can review
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Sign in to write one
Any signed-in account that does not publish Calcgrid can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
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Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.