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FXMacroData

by io.github.fxmacrodata
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FX Visual Artifact

forex_visual_artifact
Read-only

Returns FX spot-rate history for a currency pair with MCP Apps chart metadata so compatible clients render an interactive spot-rate chart inline. Suited to FX pair time-series and trend requests such as 'show me AUD/USD', 'the last 30 days', or 'how has EUR/USD moved recently'. Access: requires an FXMacroData API key; an anonymous call returns subscription_required with a subscribe link.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
baseYesBase currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, HUF, ILS, JPY, KRW, MYR, NGN, NOK, NZD, PEN, SEK, THB, TWD, USD.
quoteYesQuote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, HUF, ILS, JPY, KRW, MYR, NGN, NOK, NZD, PEN, SEK, THB, TWD, USD.
end_dateNoInclusive upper bound, YYYY-MM-DD.
indicatorsNoOptional technical indicators to include in the raw payload. Supported: adx_14, atr_14, bollinger_bands, cci_20, donchian_20, ema_12, ema_20, ema_200, ema_26, ema_50, macd, macd_histogram, macd_signal, rsi_14, sma_20, sma_200, sma_50, stochastic_14_3, williams_r_14, all.
start_dateNoInclusive lower bound, YYYY-MM-DD.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, HUF, ILS, JPY, KRW, MYR, NGN, NOK, NZD, PEN, SEK, THB, TWD, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, HUF, ILS, JPY, KRW, MYR, NGN, NOK, NZD, PEN, SEK, THB, TWD, USD."
  2. Changed5 schema fields changed
    • removedInput schema / properties / base / title
      Removed value: -"Base"
    • removedInput schema / properties / end_date / title
      Removed value: -"End Date"
    • removedInput schema / properties / indicators / title
      Removed value: -"Indicators"
    • removedInput schema / properties / quote / title
      Removed value: -"Quote"
    • removedInput schema / properties / start_date / title
      Removed value: -"Start Date"
  3. Changed1 schema field changed
    • changedInput schema / properties / indicators / description
      Previous value: -"Optional technical indicators to include in the raw payload. Supported: adx_14, atr_14, bollinger_bands, ema_12, ema_20, ema_200, ema_26, ema_50, macd, macd_histogram, macd_signal, rsi_14, sma_20, sma_200, sma_50, all."New value: +"Optional technical indicators to include in the raw payload. Supported: adx_14, atr_14, bollinger_bands, cci_20, donchian_20, ema_12, ema_20, ema_200, ema_26, ema_50, macd, macd_histogram, macd_signal, rsi_14, sma_20, sma_200, sma_50, stochastic_14_3, williams_r_14, all."
  4. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."
  5. Changed1 schema field changed
    • changedInput schema / properties / indicators / description
      Previous value: -"Optional technical indicators to include in the raw payload. Supported: bollinger_bands, ema_12, ema_26, macd, rsi_14, sma_20, sma_200, sma_50, all."New value: +"Optional technical indicators to include in the raw payload. Supported: adx_14, atr_14, bollinger_bands, ema_12, ema_20, ema_200, ema_26, ema_50, macd, macd_histogram, macd_signal, rsi_14, sma_20, sma_200, sma_50, all."
  6. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, CNY, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."
  7. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NZD, PEN, SEK, THB, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NZD, PEN, SEK, THB, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NOK, NZD, PEN, SEK, THB, USD."
  8. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, THB, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NZD, PEN, SEK, THB, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, THB, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NGN, NZD, PEN, SEK, THB, USD."
  9. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, THB, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, THB, USD."
  10. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, NZD, PEN, SEK, USD."
  11. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, CNH, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."
  12. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, THB, TRY, TWD, USD, UYU, VND."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, THB, TRY, TWD, USD, UYU, VND."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, AUD, BRL, CAD, CHF, DKK, EUR, GBP, IDR, ILS, JPY, MXN, NZD, PEN, PLN, SEK, THB, TWD, USD."
  13. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, THB, TRY, TWD, USD, UYU, VND."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, THB, TRY, TWD, USD, UYU, VND."
  14. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, ISK, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, ISK, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
  15. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, ISK, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, ISK, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
  16. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
  17. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, CNH, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, CNH, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
  18. Changed2 schema fields changed
    • changedInput schema / properties / base / description
      Previous value: -"Base currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, DKK, EUR, GBP, JPY, NZD, PEN, PLN, SEK, SGD, USD."New value: +"Base currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, CNH, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
    • changedInput schema / properties / quote / description
      Previous value: -"Quote currency, 3-letter ISO code (case-insensitive). Supported: AUD, BRL, CAD, CHF, DKK, EUR, GBP, JPY, NZD, PEN, PLN, SEK, SGD, USD."New value: +"Quote currency, 3-letter ISO code (case-insensitive). Supported: AED, ARS, AUD, BOB, BRL, CAD, CHF, CLP, CNH, COP, CZK, DKK, DZD, EGP, EUR, GBP, HKD, HUF, IDR, ILS, INR, JPY, MAD, MXN, MYR, NGN, NOK, NZD, PEN, PHP, PKR, PLN, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, UYU, VND, ZAR."
  19. Added

TDQS

A4/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true, openWorldHint=true, destructiveHint=false. The description adds real value beyond them: API key requirement and the exact failure mode for anonymous calls ('returns subscription_required with a subscribe link'), plus the caveat that rendering requires a compatible client.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Three sentences: purpose + rendering behavior first, usage examples second, access/auth caveat last. No filler, front-loaded, each sentence earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

No output schema exists, yet the description conveys what is returned (spot-rate history plus chart metadata) and what incompatible clients can expect. Auth and rendering prerequisites are covered. The only gap is that it doesn't say what a non-chart client receives in place of the visualization.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents base, quote, start_date, end_date and indicators fully. The description adds no syntax or constraint detail beyond what the schema provides (the 'last 30 days' phrasing only loosely maps to the date params). Baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource ('Returns FX spot-rate history for a currency pair') plus the distinguishing behavior ('MCP Apps chart metadata so compatible clients render an interactive spot-rate chart inline'). This separates it from the plain 'forex' data sibling, though it never names that alternative outright.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives concrete when-to-use context with example utterances ('show me AUD/USD', 'the last 30 days', 'how has EUR/USD moved recently'). No exclusion is given (e.g. 'use forex instead when you only want raw JSON'), so it stops short of full routing guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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