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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "boringtoolskit": {
      "type": "http",
      "url": "https://boringtoolskit.com/mcp"
    }
  }
}

claude mcp add --transport http boringtoolskit https://boringtoolskit.com/mcp

[mcp_servers.boringtoolskit]
url = "https://boringtoolskit.com/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "boringtoolskit": {
      "type": "remote",
      "url": "https://boringtoolskit.com/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "boringtoolskit": {
      "type": "http",
      "url": "https://boringtoolskit.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=boringtoolskit&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vYm9yaW5ndG9vbHNraXQuY29tL21jcCJ9"
}

{
  "servers": {
    "boringtoolskit": {
      "type": "http",
      "url": "https://boringtoolskit.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "boringtoolskit": {
      "httpUrl": "https://boringtoolskit.com/mcp"
    }
  }
}

extensions:
  "boringtoolskit":
    enabled: true
    name: "boringtoolskit"
    type: streamable_http
    uri: "https://boringtoolskit.com/mcp"
    timeout: 300

Quality 81 / 100new

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene86 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations36 of 36 tools declare readOnlyHint or destructiveHint
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: discount_percent_off (idempotentHint); auto_loan (idempotentHint); compound_interest (idempotentHint); …
pass
tools.token_costabout 4,655 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool history recorded for 5 of the 7 days needed

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

36 tools, about 4,655 tokens to load them all · tool set 4335dfc99a9a · tools last changed 2026-10-15 · checked 2026-10-20 12:13 UTC

Tool changes

2026-10-15mortgage_paymentchangedinput schema

Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 94 / 100

provenance80

liveness100

freshness100

hygiene100

+repository +namespace-matches-repo +reachable +uptime-100% +updated-6d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://boringtoolskit.com/mcp` streamable-http	none	yes	100%	224 ms	2025-11-25	2026-10-20

Tools (36)

`apy`read-only	Compute annual percentage yield from a nominal rate and a compounding frequency, plus the one year interest and ending balance on an example deposit.
`audio_time_stretch`read-only	Compute the new duration of audio at a playback speed, plus the percent time change.
`auto_loan`read-only	Estimate a monthly auto-loan payment from price, down payment, trade-in, term, and APR.
`bmi`read-only	Calculate body mass index and category from weight and height in US units.
`bmr_tdee`read-only	Estimate basal metabolic rate (Mifflin-St Jeor) and total daily energy expenditure from age, weight, height, sex, and an activity multiplier.
`boat_loan`read-only	Boat or RV loan payment with optional sales tax, down payment, and trade-in, including amount financed and total interest.
`budget_50_30_20`read-only	Split monthly after-tax income by the 50/30/20 rule into needs, wants, and savings or debt paydown.
`cagr`read-only	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.
`calorie`read-only	Estimate BMR and total daily energy expenditure using Mifflin-St Jeor, from weight/height in US units.
`ceiling_tile`read-only	Count 2x2 ft ceiling tiles needed for a rectangular room, with room area and a 5 percent cut-waste reminder.
`combinations`read-only	Compute the number of distinct combinations, n choose r, using a multiplicative form that avoids factorial overflow.
`compound_interest`read-only	Grow a balance with compound interest and optional monthly contributions. Returns future value, total contributed, and interest earned.
`discount_percent_off`read-only	Compute the final checkout total after stacked percentage discounts, a fixed coupon, and a tax assumption. Sequential discounts are NOT additive.
`dividend_reinvestment`read-only	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.
`emergency_fund`read-only	Emergency fund target (expenses times coverage months), the remaining gap versus current savings, and months to close the gap at a fixed monthly contribution.
`gross_rent_multiplier`read-only	Gross rent multiplier for a rental property: price divided by annual gross rent. Lower means more rent per dollar of price.
`growing_degree_day`read-only	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`read-only	U-value of an insulation upgrade and an estimated annual heating saving from conduction, using heating degree days, area, kWh conversion, and utility cost.
`key_transposition`read-only	Transpose a musical key and report the number of semitone steps upward between two keys.
`maintenance_calories`read-only	Daily maintenance calories (TDEE) from Mifflin-St Jeor BMR and an activity level, using metric inputs.
`margin_of_error`read-only	Compute the margin of error for a survey sample at the 90, 95, or 99 percent confidence level, assuming maximum variance proportions.
`mortgage_payment`read-only	Estimate the full monthly housing payment (principal, interest, tax, insurance, PMI, HOA) and the total interest over the term. Requires a positive home price.
`percentage`read-only	Solve percentage problems: what is X% of Y, X is what % of Y, or the % change from X to Y.
`pressure`read-only	Compute pressure in Pascals, kilopascals, and psi from a force in newtons over an area in square metres.
`protein_molecular_weight`read-only	Estimate a protein chain molecular weight in Da and kDa from residue count and average residue mass, plus peptide bond count.
`remainder`read-only	Compute the remainder and floored quotient of a division. Works for decimal inputs, not just integers.
`roofing`read-only	Roof area from footprint and pitch, with waste allowance, roofing squares, and approximate shingle bundles (3 per square).
`rule_of_72`read-only	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.
`savings_growth`read-only	Project the future value of a lump-sum investment (optionally with monthly additions), including interest earned.
`simple_interest`read-only	Compute simple interest, total value, and a comparison to annual compounding.
`slope`read-only	Compute slope from rise and run as degrees, percent grade, and the rise to run ratio. Run must be above zero.
`square_footage`read-only	Compute total area (and with-waste area) from up to two rectangular spaces, plus square yards, square metres, and acres.
`tip_bill_split`read-only	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.
`va_mortgage`read-only	Monthly VA loan payment including the funding fee, with no PMI. Returns the financed amount, payment, and total interest.
`win_loss_percentage`read-only	Compute a winning percentage from wins, losses, and ties, where ties count as half a win.
`youtube_revenue`read-only	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.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.roadtogideon222-byte/boringtoolskit",
  "_meta": {
    "io.modelcontextprotocol.registry/publisher-provided": {
      "io.github": {
        "docs": "https://boringtoolskit.com/llms.txt",
        "site": "https://boringtoolskit.com",
        "serverDisplayName": "BoringToolsKit"
      }
    }
  },
  "title": "BoringToolsKit",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://boringtoolskit.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "repository": {
    "url": "https://github.com/roadtogideon222-byte/boringtoolskit",
    "source": "github"
  },
  "description": "36 free private calculator tools for Claude. No accounts, no data leaves your session."
}