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exchangerate.dev

by exchangerate.dev · remote · no sign-in to list tools · v1.0.5 · published by dev.exchangerate

Free, source-labeled FX rates: 10,296 pairs across 144 currencies, all update ~60s intraday.

Final · 1Changes · 1
CompareRegistry entry

9 tools: 1 do something that can't be undone, 1 change things and 7 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 exchangerate https://api.exchangerate.dev/v1/mcp/

Tools

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

9 tools

Can't be undone 1Claude Code: ask
  • convertConvert an amount from one currency to another at the current rate.No findings

    Why it is in this group

    • The name "convert" says "convert": a word for a change.
    • The input addresses people (input.to): what it sends cannot be taken back.
    Description, as the server wrote it
    Convert an amount from one currency to another at the current rate. Indicative developer-grade reference rates (live market data + public reference rates), not for settlement or trading.
Changes things 1Claude Code: ask
  • start_checkoutOpen a billing URL for an explicitly selected eligible plan.No findings

    Why it is in this group

    • The name "start_checkout" says "start": a word for a change.
    Description, as the server wrote it
    Open a billing URL for an explicitly selected eligible plan. After human confirmation, a Free account without a subscription receives a one-hour Stripe Checkout URL; an existing subscriber receives Stripe billing management instead. Plans not offered to the account are refused. Cancellation creates nothing and account identifiers are never accepted from the model.
Only reads 7Claude Code: allow
  • get_official_rateGet the exchange rate a government authority published for a date (tax, customs, central bank), with the period it is valid for.No findings

    Why it is in this group

    • The name "get_official_rate" says "get": a word for reading.
    Description, as the server wrote it
    Get the exchange rate a government authority published for a date (tax, customs, central bank), with the period it is valid for. These are the published values, not market rates. Every plan gets the rate valid today; a past date needs a paid plan. Pairs the authority does not publish are refused.
  • get_rangeGet a daily time-series of exchange rates over a date range (business days).No findings

    Why it is in this group

    • The name "get_range" says "get": a word for reading.
    Description, as the server wrote it
    Get a daily time-series of exchange rates over a date range (business days). Capped at 366 rows per call; when has_more is true, pass next_cursor as the cursor parameter to fetch the next page. Indicative developer-grade reference rates (live market data + public reference rates), not for settlement or trading.
  • get_rateGet the current (or, with date, historical) exchange rate from one currency to another.No findings

    Why it is in this group

    • The name "get_rate" says "get": a word for reading.
    Description, as the server wrote it
    Get the current (or, with date, historical) exchange rate from one currency to another. Indicative developer-grade reference rates (live market data + public reference rates), not for settlement or trading. Rates update ~60s for real-time currencies through the trading week when the live feed is active; the source field on every response is the authoritative freshness indicator (live | ecb_daily | market_daily); rates fall back to official daily reference data during market closures or data-source unavailability. market_session on every response indicates open, weekend, or interbank_closed.
  • get_usd_indexGet the latest independently calculated USD index.No findings

    Why it is in this group

    • The name "get_usd_index" says "get": a word for reading.
    Description, as the server wrote it
    Get the latest independently calculated USD index. dxy-reconstructed uses the published six-currency basket formula but is not the official index. usd-strength is the versioned exchangerate.dev equal-weight 13-currency index, with 2026-01-02 = 100. Both require a complete, time-aligned basket.
  • list_currenciesList all supported currencies with name, decimal precision, minor units, and whether the pair is derived (triangulated).No findings

    Why it is in this group

    • The name "list_currencies" says "list": a word for reading.
    Description, as the server wrote it
    List all supported currencies with name, decimal precision, minor units, and whether the pair is derived (triangulated). Use this before other tools to discover valid currency codes.
  • list_official_rate_tablesList the countries and rate types with government-published exchange rates (for example IDN tax, GBR customs, USA government-reporting).No findings

    Why it is in this group

    • The name "list_official_rate_tables" says "list": a word for reading.
    Description, as the server wrote it
    List the countries and rate types with government-published exchange rates (for example IDN tax, GBR customs, USA government-reporting). Country codes are ISO 3166-1 alpha-3; use them with get_official_rate.
  • search_docsSearch the exchangerate.dev FAQ corpus via BM25.No findings

    Why it is in this group

    • The name "search_docs" says "search": a word for reading.
    Description, as the server wrote it
    Search the exchangerate.dev FAQ corpus via BM25. Returns the top-K matching questions and answers with relevance scores. Use before answering how-to / pricing / data-sourcing questions so you cite the canonical text instead of guessing from training data.

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 1.0.5. Values in angle brackets are yours to fill in.

claude mcp add --transport http exchangerate https://api.exchangerate.dev/v1/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__exchangerate__list_currencies",
      "mcp__exchangerate__get_usd_index",
      "mcp__exchangerate__get_rate",
      "mcp__exchangerate__get_range",
      "mcp__exchangerate__search_docs",
      "mcp__exchangerate__list_official_rate_tables",
      "mcp__exchangerate__get_official_rate"
    ],
    "ask": [
      "mcp__exchangerate__start_checkout",
      "mcp__exchangerate__convert"
    ],
    "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 exchangerate. Review it before you use it.