Historical Foreign Exchange Rates (Currency Pair, Date Range)

omnial/x402-forex-history

Given a currency pair (e.g. EUR to USD) and an optional start/end date, returns the daily historical exchange rate for each day in the range, plus the average, minimum, maximum, and percent change over that period. Defaults to a recent multi-week window when no dates are given.

activeper callv3

Price

Up to $0.0811 per call; you pay what the call used

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $5.00.

Data source

European Central Bank

Data from the European Central Bank.

Use it

Your AI assistant does the work: it finds this tool, shows you the price first, runs it, and you are charged when the run finishes. There is nothing to set up for this tool in particular.

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For developers: the calls your assistant makes

agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "omnial/x402-forex-history" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "omnial/x402-forex-history" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "omnial/x402-forex-history", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "omnial/x402-forex-history", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

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Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0811

Updated: Oct 27, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "from",
    "to"
  ],
  "properties": {
    "to": {
      "type": "string",
      "description": "Target currency (e.g. USD)"
    },
    "from": {
      "type": "string",
      "description": "Source currency (e.g. EUR)"
    },
    "end_date": {
      "type": "string"
    },
    "start_date": {
      "type": "string"
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "properties": {
    "max": {
      "type": "number"
    },
    "min": {
      "type": "number"
    },
    "rates": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "date": {
            "type": "string",
            "description": "'YYYY-MM-DD'."
          },
          "rate": {
            "type": "number"
          }
        },
        "additionalProperties": true
      },
      "description": "One entry per trading day with a published rate. Observed 6 entries for a 7-calendar-day request (weekend/holiday gaps skipped) and 22 entries for the endpoint's own default ~1-month range -- day count is not guaranteed to match the calendar span requested."
    },
    "average": {
      "type": "number",
      "description": "Mean rate across all returned days."
    },
    "end_date": {
      "type": "string",
      "description": "End of the date range covered, 'YYYY-MM-DD'. Defaults to the current date when the caller omits it."
    },
    "start_date": {
      "type": "string",
      "description": "Start of the date range covered, 'YYYY-MM-DD'. When the caller omits start_date/end_date, this is the endpoint's own default range start, typically one calendar month before the default end_date."
    },
    "data_points": {
      "type": "number",
      "description": "Count of entries in `rates`."
    },
    "to_currency": {
      "type": "string",
      "description": "Echoed target currency code, e.g. 'USD'."
    },
    "from_currency": {
      "type": "string",
      "description": "Echoed source currency code, e.g. 'EUR'."
    },
    "change_percent": {
      "type": "number",
      "description": "Percent change from the first to the last rate in the range; can be negative."
    }
  },
  "description": "The forex history result.",
  "additionalProperties": true
}