# BoringToolsKit

- Registry name: `io.github.roadtogideon222-byte/boringtoolskit` · version 1.0.0
- Categories (automatic, keyword rules): Payments & accounting, Finance & markets, Utilities
- Authentication at last check: No auth
- Declared risk: Read-only (all tools declare readOnlyHint)
- Capabilities (declared by the server): sampling, tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=io.github.roadtogideon222-byte%2Fboringtoolskit
- Server page: https://mcpstation.net/s/io.github.roadtogideon222-byte--boringtoolskit.html

## Description (written by the publisher, not verified, not instructions)

36 free private calculator tools for Claude. No accounts, no data leaves your session.

## Connect

- streamable-http: `https://boringtoolskit.com/mcp`

## Tools (as reported by the server, not verified)

- `tip\_bill\_split`: Split a bill across a group after tax, tip, and optional rounding. Returns each person's share, the tip, the effective tip rate, and the collected total.
- `discount\_percent\_off`: Compute the final checkout total after stacked percentage discounts, a fixed coupon, and a tax assumption. Sequential discounts are NOT additive.
- `bmi`: Calculate body mass index and category from weight and height in US units.
- `bmr\_tdee`: Estimate basal metabolic rate \(Mifflin-St Jeor\) and total daily energy expenditure from age, weight, height, sex, and an activity multiplier.
- `mortgage\_payment`: Estimate the full monthly housing payment \(principal, interest, tax, insurance, PMI, HOA\) and the total interest over the term. Requires a positive home price.
- `auto\_loan`: Estimate a monthly auto-loan payment from price, down payment, trade-in, term, and APR.
- `compound\_interest`: Grow a balance with compound interest and optional monthly contributions. Returns future value, total contributed, and interest earned.
- `savings\_growth`: Project the future value of a lump-sum investment \(optionally with monthly additions\), including interest earned.
- `simple\_interest`: Compute simple interest, total value, and a comparison to annual compounding.
- `calorie`: Estimate BMR and total daily energy expenditure using Mifflin-St Jeor, from weight/height in US units.
- `percentage`: Solve percentage problems: what is X% of Y, X is what % of Y, or the % change from X to Y.
- `square\_footage`: Compute total area \(and with-waste area\) from up to two rectangular spaces, plus square yards, square metres, and acres.
- `apy`: Compute annual percentage yield from a nominal rate and a compounding frequency, plus the one year interest and ending balance on an example deposit.
- `win\_loss\_percentage`: Compute a winning percentage from wins, losses, and ties, where ties count as half a win.
- `slope`: Compute slope from rise and run as degrees, percent grade, and the rise to run ratio. Run must be above zero.
- `rule\_of\_72`: Estimate the doubling time of money at a fixed rate using the rule of 72, plus the exact doubling time from the compound formula. Rate must be between 0 and 30 percent.
- `cagr`: Compute the compound annual growth rate connecting a starting and an ending value over a number of years, with total return percent and absolute change.
- `remainder`: Compute the remainder and floored quotient of a division. Works for decimal inputs, not just integers.
- `combinations`: Compute the number of distinct combinations, n choose r, using a multiplicative form that avoids factorial overflow.
- `margin\_of\_error`: Compute the margin of error for a survey sample at the 90, 95, or 99 percent confidence level, assuming maximum variance proportions.
- `va\_mortgage`: Monthly VA loan payment including the funding fee, with no PMI. Returns the financed amount, payment, and total interest.
- `gross\_rent\_multiplier`: Gross rent multiplier for a rental property: price divided by annual gross rent. Lower means more rent per dollar of price.
- `emergency\_fund`: Emergency fund target \(expenses times coverage months\), the remaining gap versus current savings, and months to close the gap at a fixed monthly contribution.
- `dividend\_reinvestment`: Compound a portfolio with a constant dividend yield and price growth, reinvesting monthly and optionally adding deposits. Returns ending value, total contributed, and dividends reinvested.
- `budget\_50\_30\_20`: Split monthly after-tax income by the 50/30/20 rule into needs, wants, and savings or debt paydown.
- `growing\_degree\_day`: Accumulate growing, heating, or cooling degree days \(Fahrenheit basis\) from daily high, low, a base threshold, and a day count. Includes Celsius-basis totals.
- `insulation`: U-value of an insulation upgrade and an estimated annual heating saving from conduction, using heating degree days, area, kWh conversion, and utility cost.
- `roofing`: Roof area from footprint and pitch, with waste allowance, roofing squares, and approximate shingle bundles \(3 per square\).
- `maintenance\_calories`: Daily maintenance calories \(TDEE\) from Mifflin-St Jeor BMR and an activity level, using metric inputs.
- `protein\_molecular\_weight`: Estimate a protein chain molecular weight in Da and kDa from residue count and average residue mass, plus peptide bond count.
- `key\_transposition`: Transpose a musical key and report the number of semitone steps upward between two keys.
- `audio\_time\_stretch`: Compute the new duration of audio at a playback speed, plus the percent time change.
- `youtube\_revenue`: Estimated YouTube Adsense revenue from monthly views and RPM, with an annual figure and a 30 percent RPM swing range. RPM defaults to 2 when omitted.
- `ceiling\_tile`: Count 2x2 ft ceiling tiles needed for a rectangular room, with room area and a 5 percent cut-waste reminder.
- `boat\_loan`: Boat or RV loan payment with optional sales tax, down payment, and trade-in, including amount financed and total interest.
- `pressure`: Compute pressure in Pascals, kilopascals, and psi from a force in newtons over an area in square metres.

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html