io.github.cyanheads/exchange-rates-mcp-server

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Au dernier audit MCP Hub, le serveur MCP « io.github.cyanheads/exchange-rates-mcp-server » est classé « Non encore testé ». Référencé dans l'annuaire. Seul le pentest comportemental fait foi, et il n'a pas encore été exécuté sur ce serveur. Le verdict est réévalué en continu ; consultez la fiche pour l'état à jour.

Méthode : MCP Hub analyse la description de chaque outil (couche 1) et, pour le verdict fort, exécute le serveur dans une micro-VM isolée avec leurres et réseau bloqué (couche 2). On publie des noms et des compteurs, jamais le contenu brut renvoyé par un outil.

Les 7 outils

• fx_convert_currency≈ 1010 tokens

  Convert an amount between any two currencies at the latest or a historical rate. Returns the converted amount, the rate used, the actual rate date, and whether the date was snapped from a weekend/holiday to the prior business day. Cross-rates are triangulated through EUR automatically.

  Paramètres, retour & exemple (4)

  Paramètres

  • date · string · optionnel
    ISO 8601 date (YYYY-MM-DD) for a historical rate. Omit for the latest available rate. ECB data starts 1999-01-04. Future dates are not supported.
  • amount · number · requis
    Amount in the base currency to convert. Must be greater than zero.
  • base_currency · string · requis
    ISO 4217 source currency code (e.g. USD). Call fx_list_currencies to get valid codes.
  • quote_currency · string · requis
    ISO 4217 target currency code (e.g. EUR). The amount will be expressed in this currency. Call fx_list_currencies to get valid codes.

  Exemple d'appel

  {"name": "fx_convert_currency", "arguments": {"amount": 1, "base_currency": "texte", "quote_currency": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}], "structuredContent": {"rate": 1, "error": {}, "source": "texte", "rate_date": "texte", "rate_type": "texte", "base_amount": 1, "date_snapped": true, "quote_amount": 1, "base_currency": "texte", "quote_currency": "texte"}}

• fx_dataframe_describe≈ 852 tokens

  List tables and columns staged on a DataCanvas from a prior fx_get_timeseries call. Required first step before fx_dataframe_query — use it to discover table names and column schemas. Requires DataCanvas, which is on by default — a deployment that turns it off does not list this tool at all, and fx_get_timeseries returns every range inline there.

  Paramètres, retour & exemple (1)

  Paramètres

  • canvas_id · string · requis
    Canvas ID returned by fx_get_timeseries. Re-run fx_get_timeseries to obtain a fresh canvas_id if this one has expired.

  Exemple d'appel

  {"name": "fx_dataframe_describe", "arguments": {"canvas_id": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}], "structuredContent": {"error": {}, "tables": [], "canvas_id": "texte", "expires_at": "texte"}}

• fx_dataframe_query≈ 1044 tokens

  Run a read-only SQL SELECT against DataCanvas tables staged by fx_get_timeseries. Supports aggregations, GROUP BY, window functions, and JOINs across multiple registered tables. Run fx_dataframe_describe first to discover table names and column schemas. Requires DataCanvas, which is on by default — a deployment that turns it off does not list this tool at all, and fx_get_timeseries returns every range inline there.

  Paramètres, retour & exemple (3)

  Paramètres

  • query · string · requis
    Read-only SQL SELECT statement. Reference tables by the names returned by fx_dataframe_describe or the table_name field from fx_get_timeseries. Example: SELECT date, rate FROM fx_usd_eur WHERE date > '2024-01-01' ORDER BY date
  • canvas_id · string · requis
    Canvas ID returned by fx_get_timeseries. Re-run fx_get_timeseries to obtain a fresh canvas_id if this one has expired.
  • row_limit · integer · optionnel
    Most rows to return (1–10000, default 150). When the query produces more, truncated is true — page with ORDER BY <column> LIMIT <n> OFFSET <m> in the SQL, or aggregate, rather than raising this toward the maximum.

  Exemple d'appel

  {"name": "fx_dataframe_query", "arguments": {"query": "texte", "canvas_id": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}], "structuredContent": {"rows": [], "error": {}, "notice": "texte", "canvas_id": "texte", "row_count": 1, "truncated": true}}

• fx_get_rate≈ 962 tokens

  Get the exchange rate for a currency pair on a given date (default: latest). Returns the rate, the actual rate date (which may differ from the requested date on weekends/holidays — ECB publishes business days only), and source provenance. Cross-rates are triangulated through EUR automatically. A same-currency pair returns a rate of 1, dated to the same publication day any other pair would report for that date. Use fx_convert_currency when you want the converted amount; use this tool when you only need the rate number.

  Paramètres, retour & exemple (3)

  Paramètres

  • date · string · optionnel
    ISO 8601 date (YYYY-MM-DD). Omit for the latest available rate. ECB data starts 1999-01-04. Future dates are not supported.
  • base_currency · string · requis
    ISO 4217 base currency code (e.g. USD). Call fx_list_currencies to get valid codes.
  • quote_currency · string · requis
    ISO 4217 quote currency code (e.g. EUR). The rate is expressed as "how many quote units per 1 base unit". Call fx_list_currencies to get valid codes.

  Exemple d'appel

  {"name": "fx_get_rate", "arguments": {"base_currency": "texte", "quote_currency": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}], "structuredContent": {"rate": 1, "error": {}, "source": "texte", "rate_date": "texte", "rate_type": "texte", "date_snapped": true, "base_currency": "texte", "quote_currency": "texte"}}

• fx_get_rates≈ 1044 tokens

  Get all available exchange rates for one base currency in a single snapshot. Useful for bulk comparison and seeding downstream tools. Returns a map of quote currency → rate, the actual snapshot date, and whether a historical date was snapped from a weekend/holiday to the prior business day. Optionally filter to a subset of quote currencies via symbols. Listing the base currency itself in symbols is accepted and returns a rate of 1 for it.

  Paramètres, retour & exemple (3)

  Paramètres

  • date · string · optionnel
    ISO 8601 date (YYYY-MM-DD). Omit for the latest available rate. ECB data starts 1999-01-04. Future dates are not supported.
  • symbols · array · optionnel
    Optional list of quote currency codes to filter the response. When provided, must contain at least one currency code — omit the field entirely, not an empty array, to return all ~30 supported currencies (the base is not among them). Including base_currency here is valid — it comes back with a rate of 1.
  • base_currency · string · requis
    ISO 4217 base currency code (e.g. USD). Call fx_list_currencies to get valid codes.

  Exemple d'appel

  {"name": "fx_get_rates", "arguments": {"base_currency": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}], "structuredContent": {"error": {}, "rates": {}, "source": "texte", "rate_date": "texte", "rate_type": "texte", "date_snapped": true, "base_currency": "texte"}}

• fx_get_timeseries≈ 1844 tokens

  Get historical daily exchange rates for a currency pair over a date range. ECB publishes on business days only — weekends and holidays produce no entry, and no date outside the requested range is ever returned, so a range covering only non-publication days comes back with an empty rates map and a notice explaining why. A same-currency pair returns a rate of 1 on each publication day in the range. Inline results are returned as a date→rate map paged at 500 publication days: rate_count is always the total for the requested range, and when a page is cut short the response carries truncated=true and next_start_date — call again with start_date set to next_start_date and the same end_date for the next page. Long ranges (>90 days by default) are considered for DataCanvas staging: when the series exceeds the 40,000-character preview budget, it is staged and the response carries spilled=true, a canvas_id, and a table_name — call fx_dataframe_describe to inspect the staged table, then fx_dataframe_query to run SQL against it. On a deployment with DataCanvas turned off, long ranges are paged inline (spilled=false) and the notice says so.

  Paramètres, retour & exemple (5)

  Paramètres

  • end_date · string · requis
    ISO 8601 end date (YYYY-MM-DD). Must be >= start_date. Future dates are not supported.
  • canvas_id · string · optionnel
    Optional canvas ID from a prior call. Omit on the first call to start a fresh canvas; pass the returned canvas_id to append tables to an existing canvas.
  • start_date · string · requis
    ISO 8601 start date (YYYY-MM-DD). ECB data starts 1999-01-04. The actual first data point may be later if start_date falls on a weekend/holiday.
  • base_currency · string · requis
    ISO 4217 base currency code (e.g. USD). Call fx_list_currencies to get valid codes.
  • quote_currency · string · requis
    ISO 4217 quote currency code (e.g. EUR). Call fx_list_currencies to get valid codes.

  Exemple d'appel

  {"name": "fx_get_timeseries", "arguments": {"end_date": "texte", "start_date": "texte", "base_currency": "texte", "quote_currency": "texte"}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}], "structuredContent": {"error": {}, "rates": {}, "notice": "texte", "source": "texte", "spilled": true, "end_date": "texte", "canvas_id": "texte", "rate_type": "texte", "truncated": true, "rate_count": 1, "start_date": "texte", "table_name": "texte"}}

• fx_list_currencies≈ 570 tokens

  List all supported ISO 4217 currency codes with their full names. Call this before converting to disambiguate "dollars" (USD vs AUD vs CAD vs HKD vs SGD) or to validate a user-supplied currency code. Covers the ~30 ECB reference currencies.

  Paramètres, retour & exemple (0)

  Exemple d'appel

  {"name": "fx_list_currencies", "arguments": {}}

  Exemple de retour

  {"content": [{"type": "text", "text": "…"}], "structuredContent": {"count": 1, "error": {}, "source": "texte", "currencies": []}}

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Source

https://exchange-rates.caseyjhand.com/mcp