DatoQA — Historical Exchange Rates

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Historical reference FX and dated conversions across 30 currencies, with source dates and evidence.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "DatoQA — Historical Exchange Rates": {
      "url": "https://datoqa.bhazarstudio.workers.dev/mcp/fx",
      "transport": "streamable-http"
    }
  }
}

Measured tools (7)

• catalog read-only

  Inspect this connection’s scope, tools and access policy. With no arguments returns the usual catalog. On the general or economy connection, optionally supply report_countries (1–10 World Bank codes) for a FREE live preview of the optional paid country comparison: population/GDP/inflation by default, or up to six selected historical indicators over ten years, aligned JSON and CSV, definitions and source evidence. Preview reports price, missing cells, availability and the exact HTTP purchase path; it never signs or pays. Existing data tools remain free. Buying requires an authorized x402 HTTP client, not just MCP. Source/schema checks are not independent factual verification.

  Parameters:

  • language — string — Response metadata language, English by default or French; original source definitions and notes remain preserved.
  • report_to — integer — Inclusive last observation year, no later than the last completed calendar year. Supply with report_from and report_indicators; missing observations block purchase.
  • report_from — integer — Inclusive first observation year for a custom country preview. Supply with report_to and report_indicators; at most ten years, from 1960 onward.
  • report_countries — array — Optional free preview for these distinct World Bank country codes, e.g. FRA, DEU, ESP. General/economy connections only.
  • report_indicators — array — Custom historical comparison: select up to six of the 22 WDI indicators. Supply report_from and report_to together, up to ten years. Missing cells block payment.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• get_exchange_rates read-only

  ECB indicative daily currency reference rates against EUR. Not real-time or executable prices; inspect observation_date. Original rates freely available at the cited ECB source.

  Parameters:

  • currency — string — Optional uppercase currency code, for example USD; omit for all available ECB reference currencies. Values are currency units per one EUR.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• list_exchange_rate_history read-only

  List available currencies, annual snapshots since 1999 and explicit gaps in ECB daily reference FX history. Some currencies have been discontinued. Units per EUR; original data freely available at ECB.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• get_exchange_rate_history read-only

  ECB historical daily reference rates for one currency against EUR. Provide year (1999 onward) or an exact date, not both. Default: current year. Returns one year at most, original decimals, missing values and evidence. No weekend carry-forward, interpolation, current quote for discontinued currencies, cross rates or executable prices.

  Parameters:

  • currency (required) — string — Uppercase non-EUR currency code from list_exchange_rate_history, for example USD. Values are currency units per one EUR.
  • date — string — Exact source date YYYY-MM-DD, for example 2008-09-15; cannot be combined with year. No filling of weekends or gaps.
  • year — integer — One source calendar year since 1999; defaults to the current year. Cannot be combined with date.
  • format — string — CSV content with null flags, original values, source notes and provenance, alongside JSON. No missing-date filling.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• get_record read-only

  Get an unexpired record with provenance and its explicit verification level. Source/schema validation is not independent factual verification.

  Parameters:

  • id (required) — string — Opaque record id returned by a DatoQA data response. Reuse it exactly; do not invent an id.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• get_evidence read-only

  Retrieve the source JSON snapshot and SHA-256 digest for a currently available record. The digest proves snapshot integrity, not factual truth.

  Parameters:

  • id (required) — string — Record id returned by a DatoQA data response; returns the retained source snapshot for that record.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• convert_currency_batch read-only

  Free pilot: convert dated decimal-string amounts to a target_currency chosen from 30 supported currencies, including EUR (default), USD, JPY, CNY, GBP, CHF, INR and KRW. Use exact-date ECB historical references; derived cross conversions use amount * target units per EUR / source units per EUR without intermediate rounding. Up to 500 rows, eight currency/year snapshots including target rates, 48,000 UTF-8 argument bytes; start small. Unique id per row. Half-even rounding by default, ISO 4217 minor-unit rounding per line: zero decimals for JPY/KRW/ISK, two for other supported targets; target_decimal_places reports precision; total_target sums rounded lines. amount_target is the result; legacy amount_eur/total_eur are null for non-EUR targets. Same-currency rows use identity without an external quote. Preserve originals and evidence for both currencies from the same source edition. Missing, stale or mismatched rates block complete export and total; never replace dates. JSON default; output_format=both includes CSV. ECB originals are free; indicative calculations are not executable prices or accounting/tax certification. No transfers, independent factual verification, customer-content retention or content logging.

  Parameters:

  • rows (required) — array
  • rounding — string
  • output_format — string — json keeps the response smaller. both includes the CSV in the same free result; no separate export purchase.
  • target_currency — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

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Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.