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Zovo Currency Converter

by theluckystrike · remote · no sign-in to list tools · v1.0.0 · published by GitHub user theluckystrike

Currency rates & history

Final · 1Changes · 1
CompareRegistry entry

2 tools: 1 do something that can't be undone and 1 change things.

Scanned Oct 22, 2026

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

claude mcp add --transport http currency-converter https://currency-converter.zovo.one/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warnconvert_currency

    The server marks "convert_currency" 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":true}; The name "convert_currency" says "convert": a word for a change.

    What this check looks for

Tools

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

2 tools

Can't be undone 1Claude Code: ask
  • convert_currencyUse this when the user wants a currency converter or the currency exchange rate today, for example to convert usd to eur, euro to dollar, or the rate on date for any day back to 19…1 finding

    Why it is in this group

    • The name "convert_currency" says "convert": a word for a change.
    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "convert_currency" 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":true}; The name "convert_currency" says "convert": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Use this when the user wants a currency converter or the currency exchange rate today, for example to convert usd to eur, euro to dollar, or the rate on date for any day back to 1999-01-04. It uses the European Central Bank euro reference rates (published on working days around 16:00 CET) and returns the converted amount, the rate, the inverse rate and the actual rate date, for up to 10 target currencies. Rates are indicative mid-market rates, not a bank or card rate, and there is no cryptocurrency. Do not use for crypto, metals or live market quotes.

    Annotations the server declares

    • title: Convert currency
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
    • idempotentHint: true
Changes things 1Claude Code: ask
  • rate_historyUse this when the user asks for an exchange rate history or a historical exchange rate, or the conversion of currency data over a date range, or wants a CSV of rates.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
    Use this when the user asks for an exchange rate history or a historical exchange rate, or the conversion of currency data over a date range, or wants a CSV of rates. It returns the daily European Central Bank euro reference rates for up to 5 quote currencies over at most 366 days, with min, max, average and the first-to-last change in percent, plus a CSV download and a line chart in the widget. It shows published working days only (no weekends or ECB holidays) and is not financial advice. Do not use for stocks, crypto or commodity prices.

    Annotations the server declares

    • title: Exchange rate history
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
    • idempotentHint: true

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 currency-converter https://currency-converter.zovo.one/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": [],
    "ask": [
      "mcp__currency-converter__convert_currency",
      "mcp__currency-converter__rate_history"
    ],
    "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 currency-converter. Review it before you use it.