BusCalc — Business & Trade Calculations

com.buscalc/calculationsbuscalc.comstreamable-httpv1.0.1Scanned 1 hour ago

Ten free business calculation tools: decision feasibility, pricing, loans, fleet costs and more.

10 tools: 1 do something that can't be undone, 6 change things and 3 only read.

Reads private data · 0
Reads text others write · 0
Can send data out · 0
5 findings

Anlyon alternative

7 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

10 tools

Can't be undone 1Sends, pays, publishes or merges: once done, it cannot be taken back.Claude Code: ask

buscalc_equipment_loan_paymentBuild a fixed-rate equipment loan amortization schedule.1 finding
Why it is in this group
- The name "buscalc_equipment_loan_payment" says "payment": a word that usually means money moves, which cannot be taken back.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "buscalc_equipment_loan_payment" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "buscalc_equipment_loan_payment" says "payment": a word that usually means money moves, which cannot be taken back.
  What this check looks for
Description, as the server wrote it
Build a fixed-rate equipment loan amortization schedule. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed.
Annotations the server declares
- title: Equipment loan payment
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

Changes things 6Creates or changes something that can be changed back.Claude Code: ask

buscalc_decision_feasibilityEvaluate a job, restaurant production run, delivery route, equipment purchase or staffing plan against explicit cost, capacity, earnings and timing limits.1 finding
Why it is in this group
- The description's first verb is "evaluate": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "buscalc_decision_feasibility" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "evaluate": a word for a change.
  What this check looks for
Description, as the server wrote it
Evaluate a job, restaurant production run, delivery route, equipment purchase or staffing plan against explicit cost, capacity, earnings and timing limits. Return favorable/unfavorable feasibility, breaking points, permitted repairs and verification priorities. Zero permitted change locks an item. Uses original bounded workflow models built on established arithmetic and constraint methods; no world-first, forecast or obtainable-saving guarantee.
Annotations the server declares
- title: Decision feasibility calculator
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
buscalc_equipment_ownership_cost_per_hourRecover economic ownership and running cost at realistic utilization.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Recover economic ownership and running cost at realistic utilization. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed.
Annotations the server declares
- title: Equipment ownership cost per hour
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
buscalc_feet_and_inchesAdd or subtract two measurements, or multiply one length by a count, with fractional-inch entry and decimal conversions.1 finding
Why it is in this group
- The description's first verb is "add": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "buscalc_feet_and_inches" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "add": a word for a change.
  What this check looks for
Description, as the server wrote it
Add or subtract two measurements, or multiply one length by a count, with fractional-inch entry and decimal conversions. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed.
Annotations the server declares
- title: Feet and inches
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
buscalc_fleet_cost_per_mileAdd your vehicle operating, ownership and driver costs, then divide by productive miles for the same period.1 finding
Why it is in this group
- The description's first verb is "add": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "buscalc_fleet_cost_per_mile" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "add": a word for a change.
  What this check looks for
Description, as the server wrote it
Add your vehicle operating, ownership and driver costs, then divide by productive miles for the same period. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed.
Annotations the server declares
- title: Fleet cost per mile
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
buscalc_markup_vs_marginConvert cost and desired gross margin into price without confusing markup.1 finding
Why it is in this group
- The description's first verb is "convert": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "buscalc_markup_vs_margin" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "convert": a word for a change.
  What this check looks for
Description, as the server wrote it
Convert cost and desired gross margin into price without confusing markup. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed.
Annotations the server declares
- title: Markup vs margin
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
buscalc_service_business_hourly_rateRecover annual overhead and owner compensation across billable hours.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Recover annual overhead and owner compensation across billable hours. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed.
Annotations the server declares
- title: Service business hourly rate
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

Only reads 3Looks things up and changes nothing.Show 3 read-only tools

buscalc_break_even_salesFind units and revenue needed to cover fixed costs.No findings
Why it is in this group
- The description's first verb is "find": a word for reading.
Description, as the server wrote it
Find units and revenue needed to cover fixed costs. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed.
Annotations the server declares
- title: Break even sales
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
buscalc_recipe_portion_costFind the ingredient cost of a batch and each sellable portion from package prices and quantities used.No findings
Why it is in this group
- The description's first verb is "find": a word for reading.
Description, as the server wrote it
Find the ingredient cost of a batch and each sellable portion from package prices and quantities used. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed.
Annotations the server declares
- title: Recipe portion cost
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
buscalc_time_durationFind time between two clock readings, including an explicit end-day offset and optional excluded minutes.No findings
Why it is in this group
- The description's first verb is "find": a word for reading.
Description, as the server wrote it
Find time between two clock readings, including an explicit end-day offset and optional excluded minutes. Use this tested BusCalc worksheet when the task matches its inputs and scope. Returns named results, units, formula, assumptions, method version and a source-page URL. No prices or omitted costs are looked up; no private projects or purchases are accessed.
Annotations the server declares
- title: Time duration
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

5 warn

Warnbuscalc_fleet_cost_per_mile
The server marks "buscalc_fleet_cost_per_mile" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "add": a word for a change.
What this check looks for
Warnbuscalc_markup_vs_margin
The server marks "buscalc_markup_vs_margin" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "convert": a word for a change.
What this check looks for
Warnbuscalc_equipment_loan_payment
The server marks "buscalc_equipment_loan_payment" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "buscalc_equipment_loan_payment" says "payment": a word that usually means money moves, which cannot be taken back.
What this check looks for
Warnbuscalc_feet_and_inches
The server marks "buscalc_feet_and_inches" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "add": a word for a change.
What this check looks for
Warnbuscalc_decision_feasibility
The server marks "buscalc_decision_feasibility" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The description's first verb is "evaluate": a word for a change.
What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 1.0.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http calculations https://buscalc.com/api/mcp

claude mcp add --transport http calculations https://buscalc.com/api/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__calculations__buscalc_recipe_portion_cost",
      "mcp__calculations__buscalc_break_even_sales",
      "mcp__calculations__buscalc_time_duration"
    ],
    "ask": [
      "mcp__calculations__buscalc_fleet_cost_per_mile",
      "mcp__calculations__buscalc_markup_vs_margin",
      "mcp__calculations__buscalc_service_business_hourly_rate",
      "mcp__calculations__buscalc_equipment_ownership_cost_per_hour",
      "mcp__calculations__buscalc_equipment_loan_payment",
      "mcp__calculations__buscalc_feet_and_inches",
      "mcp__calculations__buscalc_decision_feasibility"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as calculations. Review it before you use it.

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/com.buscalc/calculations/verify?hash=cf88a219a397830f598e890decb053c7488e24800418fad91155a08de81e675b" | jq -e '.changed == false'

Pinned hash cf88a219a397, from Nov 3, 2026, 15:18 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.buscalc/calculations/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Badge

[![anlyon.dev](https://anlyon.dev/badge/com.buscalc/calculations.svg)](https://anlyon.dev/servers/com.buscalc/calculations)

Source: MCP Registry. Synced Nov 3, 2026, 15:17 UTC.