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RevvedUpCars True Cost Index

by revvedupcars.com · remote · no sign-in to list tools · v1.0.0 · published by com.revvedupcars

What a new car costs a month to own in the US: loan, insurance, maintenance, fuel. No key.

Changes · 1
CompareRegistry entry

4 tools: 1 change things and 3 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http true-cost-index https://revvedupcars.com/api/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

4 tools

Changes things 1Claude Code: ask
  • cost_indexRank a segment of the catalogue by true monthly cost of ownership, cheapest first, with the segment's cheapest, median and most expensive figures.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
    Rank a segment of the catalogue by true monthly cost of ownership, cheapest first, with the segment's cheapest, median and most expensive figures.

    Annotations the server declares

    • title: Cheapest cars to own, by segment
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
Only reads 3Claude Code: allow
  • compare_true_costCompare two cars' true monthly cost of ownership: which is cheaper, by how much per month and per year, and which cost line accounts for most of the gap.No findings

    Why it is in this group

    • The name "compare_true_cost" says "compare": a word for reading.
    Description, as the server wrote it
    Compare two cars' true monthly cost of ownership: which is cheaper, by how much per month and per year, and which cost line accounts for most of the gap. Differences under $10 a month are reported as a tie.

    Annotations the server declares

    • title: Which car is cheaper to own
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • find_carSearch the priced catalogue by make, model, trim or year and return matching cars with their slug and true monthly cost.No findings

    Why it is in this group

    • The name "find_car" says "find": a word for reading.
    Description, as the server wrote it
    Search the priced catalogue by make, model, trim or year and return matching cars with their slug and true monthly cost. Every word must match. Newest model years first.

    Annotations the server declares

    • title: Find a car
    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_true_costOne car's true monthly cost of ownership: loan, insurance, maintenance and fuel, the total per month and per year, whether each estimate is the car's own figure or a segment averag…No findings

    Why it is in this group

    • The name "get_true_cost" says "get": a word for reading.
    Description, as the server wrote it
    One car's true monthly cost of ownership: loan, insurance, maintenance and fuel, the total per month and per year, whether each estimate is the car's own figure or a segment average, and its rank among comparable cars.

    Annotations the server declares

    • title: True monthly cost of a car
    • 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.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http true-cost-index https://revvedupcars.com/api/mcp

Run in a terminal.

Claude Code permissions

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

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__true-cost-index__find_car",
      "mcp__true-cost-index__get_true_cost",
      "mcp__true-cost-index__compare_true_cost"
    ],
    "ask": [
      "mcp__true-cost-index__cost_index"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as true-cost-index. Review it before you use it.