Skip to content
BusCalc logo

BusCalc MCP server

Which MCP servers are BusCalc's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-11-03

← Back to BusCalc

Whose server it is
  • Registry namecom.buscalc/calculationsverified in the MCP registry

The registry name sits under buscalc.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-11-03
  • Stateanswerschecked 2026-11-03
  • Tools10
  • Server calls itselfcom.buscalc/calculations
  • Server version1.0.1
  • Protocol version2025-06-18

On 2026-11-03 the server answered initialize and tools/list without a sign-in. First answer in 379 ms.

Should an agent connect itNot proven either way yet
  • Its tools do Calculate required selling price from a target margin; Check markup versus margin on a quoted job, but not Compare capital projects using NPV and IRR.
  • Checked on 2 of the 7 days it takes to judge reliability.

Once connected

  • For "Calculate required selling price from a target margin", the likely first call is buscalc_markup_vs_margin.
  • For "Check markup versus margin on a quoted job", the likely first call is buscalc_markup_vs_margin.
  • Its definitions take about 22243 tokens of context: enable only the tools a task needs.
  • Parameters are untyped or undescribed in 18 of 18 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 2, the first on 2026-11-03
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
  • What an agent can do with it2 of 3 use cases
  • Answeredmeasuring2 of the 7 daily checks it takes to print a share
  • Median first answer436 ms
  • Space in an agent's context≈ 22,243 tokensthe definitions of all its tools (18), which an agent carries on every turn
  • Tool definitionsB · 83 of 100
  • Typed results18 of 18 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 18 of 18

What an agent can do with it

  • can do · Calculate required selling price from a target margin
  • can do · Check markup versus margin on a quoted job
  • cannot · Compare capital projects using NPV and IRR

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers10 tools · read 2026-11-03
  • buscalc_fleet_cost_per_mile

    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…

  • buscalc_markup_vs_margin

    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…

  • buscalc_recipe_portion_cost

    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…

  • buscalc_service_business_hourly_rate

    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…

  • buscalc_equipment_ownership_cost_per_hour

    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…

  • buscalc_break_even_sales

    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…

  • buscalc_equipment_loan_payment

    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…

  • buscalc_feet_and_inches

    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…

  • buscalc_time_duration

    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…

  • buscalc_decision_feasibility

    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…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "calculations": {
      "type": "http",
      "url": "https://buscalc.com/api/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

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

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://buscalc.com/api/mcp as a custom connector in the settings.

OpenAPI spec

1 paths, read 2026-11-03. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.