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2s.io US Treasury Official Exchange Rates
x402
2s.io US Treasury Official Exchange Rates is a paid API for AI agents from 2s.io, paid per call via x402, $0.0012/call, status unknown (last checked 2026-09-14).
Returns official US Treasury exchange rates for foreign currencies, sourced from the Treasury Fiscal Data API, with quarterly and ad-hoc updates per country/currency pair.
Price / call$0.0012
Success—
StatusUnknown
How this service works
Official US Treasury exchange rates via US Treasury Fiscal Data. Used by federal agencies to report foreign-currency transactions in USD. Quarterly + ad-hoc updates per country/currency pair. Each row carries record_date, country, currency, country_currency_desc, exchange_rate, effective_date. Pair with `/api/fx/rates` (ECB Frankfurter, daily market rates) for cross-validation. Use Fiscal Data filter syntax — e.g. `filter=country:eq:Brazil` to scope to a single country.
Output
A paginated list of Treasury exchange rate records, each containing record_date, country, currency, country_currency_desc (e.g. 'Brazil-Real'), exchange_rate (USD equivalent), and effective_date. Sorted by record_date descending by default.
Example use cases
Example prompt
“What is the official US Treasury exchange rate for Brazil? Pull the most recent record and show me the country, currency, exchange rate, and effective date.”
Technical details
Endpoint
GEThttps://2s.io/api/treasury/exchange-ratesWhen to prefer
Use this endpoint when you need the official US government-sanctioned exchange rate for foreign-currency reporting — specifically the rate used by federal agencies — rather than live market rates. Prefer it over ECB Frankfurter (/api/fx/rates) when regulatory compliance or cross-validation with official Treasury figures is required. Best for quarterly historical lookups or auditing foreign-currency transactions reported in USD.
Side effects
- Invalid filter syntax returns a 400 or empty result set
- Unknown country or currency name in filter returns zero rows
- pageSize exceeding 10000 is rejected
- Network or upstream Treasury Fiscal Data outage returns 5xx
- Stale data if Treasury hasn't published a new quarterly update yet
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"sort": "-record_date",
"filter": "country:eq:Canada",
"pageSize": 10,
"pageNumber": 1
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"data": {
"ok": true,
"meta": {
"links": {
"last": "&page%5Bnumber%5D=11&page%5Bsize%5D=10",
"next": "&page%5Bnumber%5D=2&page%5Bsize%5D=10",
"prev": null,
"self": "&page%5Bnumber%5D=1&page%5Bsize%5D=10",
"first": "&page%5Bnumber%5D=1&page%5Bsize%5D=10"
},
"labels": {
"country": "Country",
"currency": "Currency",
"record_date": "Record Date",
"src_line_nbr": "Source Line Number",
"exchange_rate": "Exchange Rate",
"effective_date": "Effective Date",
"record_fiscal_year": "Fiscal Year",
"record_calendar_day": "Calendar Day Number",
"record_calendar_year": "Calendar Year",
"country_currency_desc": "Country - Currency Description",
"record_calendar_month": "Calendar Month Number",
"record_fiscal_quarter": "Fiscal Quarter Number",
"record_calendar_quarter": "Calendar Quarter Number"
},
"dataTypes": {
"country": "STRING",
"currency": "STRING",
"record_date": "DATE",
"src_line_nbr": "INTEGER",
"exchange_rate": "NUMBER",
"effective_date": "DATE",
"record_fiscal_year": "YEAR",
"record_calendar_day": "DAY",
"record_calendar_year": "YEAR",
"country_currency_desc": "STRING",
"record_calendar_month": "MONTH",
"record_fiscal_quarter": "QUARTER",
"record_calendar_quarter": "QUARTER"
}
},
"page": {
"size": 10,
"pages": 11,
"number": 1
},
"items": [
{
"country": "Canada",
"currency": "Dollar",
"record_date": "2026-03-31",
"src_line_nbr": "27",
"exchange_rate": "1.393",
"effective_date": "2026-03-31",
"record_fiscal_year": "2026",
"record_calendar_day": "31",
"record_calendar_year": "2026",
"country_currency_desc": "Canada-Dollar",
"record_calendar_month": "03",
"record_fiscal_quarter": "2",
"record_calendar_quarter": "1"
},
{
"country": "Canada",
"currency": "Dollar",
"record_date": "2025-12-31",
"src_line_nbr": "28",
"exchange_rate": "1.369",
"effective_date": "2025-12-31",
"record_fiscal_year": "2026",
"record_calendar_day": "31",
"record_calendar_year": "2025",
"country_currency_desc": "Canada-Dollar",
"record_calendar_month": "12",
"record_fiscal_quarter": "1",
"record_calendar_quarter": "4"
},
{
"country": "Canada",
"currency": "Dollar",
"record_date": "2025-09-30",
"src_line_nbr": "29",
"exchange_rate": "1.392",
"effective_date": "2025-09-30",
"record_fiscal_year": "2025",
"record_calendar_day": "30",
"record_calendar_year": "2025",
"country_currency_desc": "Canada-Dollar",
"record_calendar_month": "09",
"record_fiscal_quarter": "4",
"record_calendar_quarter": "3"
},
{
"country": "Canada",
"currency": "Dollar",
"record_date": "2025-06-30",
"src_line_nbr": "28",
"exchange_rate": "1.367",
"effective_date": "2025-06-30",
"record_fiscal_year": "2025",
"record_calendar_day": "30",
"record_calendar_year": "2025",
"country_currency_desc": "Canada-Dollar",
"record_calendar_month": "06",
"record_fiscal_quarter": "3",
"record_calendar_quarter": "2"
},
{
"country": "Canada",
"currency": "Dollar",
"record_date": "2025-03-31",
"src_line_nbr": "31",
"exchange_rate": "1.435",
"effective_date": "2025-03-31",
"record_fiscal_year": "2025",
"record_calendar_day": "31",
"record_calendar_year": "2025",
"country_currency_desc": "Canada-Dollar",
"record_calendar_month": "03",
"record_fiscal_quarter": "2",
"record_calendar_quarter": "1"
},
{
"country": "Canada",
"currency": "Dollar",
"record_date": "2024-12-31",
"src_line_nbr": "30",
"exchange_rate": "1.438",
"effective_date": "2024-12-31",
"record_fiscal_year": "2025",
"record_calendar_day": "31",
"record_calendar_year": "2024",
"country_currency_desc": "Canada-Dollar",
"record_calendar_month": "12",
"record_fiscal_quarter": "1",
"record_calendar_quarter": "4"
},
{
"country": "Canada",
"currency": "Dollar",
"record_date": "2024-09-30",
"src_line_nbr": "30",
"exchange_rate": "1.352",
"effective_date": "2024-09-30",
"record_fiscal_year": "2024",
"record_calendar_day": "30",
"record_calendar_year": "2024",
"country_currency_desc": "Canada-Dollar",
"record_calendar_month": "09",
"record_fiscal_quarter": "4",
"record_calendar_quarter": "3"
},
{
"country": "Canada",
"currency": "Dollar",
"record_date": "2024-06-30",
"src_line_nbr": "28",
"exchange_rate": "1.37",
"effective_date": "2024-06-30",
"record_fiscal_year": "2024",
"record_calendar_day": "30",
"record_calendar_year": "2024",
"country_currency_desc": "Canada-Dollar",
"record_calendar_month": "06",
"record_fiscal_quarter": "3",
"record_calendar_quarter": "2"
},
{
"country": "Canada",
"currency": "Dollar",
"record_date": "2024-03-31",
"src_line_nbr": "27",
"exchange_rate": "1.355",
"effective_date": "2024-03-31",
"record_fiscal_year": "2024",
"record_calendar_day": "31",
"record_calendar_year": "2024",
"country_currency_desc": "Canada-Dollar",
"record_calendar_month": "03",
"record_fiscal_quarter": "2",
"record_calendar_quarter": "1"
},
{
"country": "Canada",
"currency": "Dollar",
"record_date": "2023-12-31",
"src_line_nbr": "27",
"exchange_rate": "1.326",
"effective_date": "2023-12-31",
"record_fiscal_year": "2024",
"record_calendar_day": "31",
"record_calendar_year": "2023",
"country_currency_desc": "Canada-Dollar",
"record_calendar_month": "12",
"record_fiscal_quarter": "1",
"record_calendar_quarter": "4"
}
],
"total": 101,
"source": {
"url": "https://fiscaldata.treasury.gov/api-documentation/",
"license": "US Government work, public domain.",
"provider": "US Treasury Fiscal Data API (Bureau of the Fiscal Service)"
}
},
"meta": {
"cost": {
"usd": 0.0012,
"tier": 0
},
"caller": "x402",
"version": null,
"endpoint": "treasury.exchange-rates",
"settlement": {
"txHash": "0xe45d6186d33ffde6bd0cc9bf2aa675f9e04ea66c59a3efa1612a6fd22fbb11c6",
"network": "eip155:8453",
"success": true
}
}
}Schema · Response
{
"type": "json",
"schema": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"meta": {
"type": "object",
"properties": {
"links": {},
"labels": {},
"dataTypes": {}
}
},
"page": {
"type": "object",
"properties": {
"size": {
"type": "integer"
},
"pages": {},
"number": {
"type": "integer"
}
}
},
"items": {
"type": "array",
"items": {
"type": "object",
"properties": {
"country": {
"type": "string"
},
"currency": {
"type": "string"
},
"record_date": {
"type": "string"
},
"exchange_rate": {
"type": "string"
},
"effective_date": {
"type": "string"
},
"country_currency_desc": {
"type": "string"
}
}
}
},
"total": {
"type": "integer"
},
"source": {
"type": "object",
"properties": {
"url": {
"type": "string"
},
"license": {
"type": "string"
},
"provider": {
"type": "string"
}
}
}
}
},
"example": {
"ok": true,
"meta": {
"links": null,
"labels": null,
"dataTypes": null
},
"page": {
"size": 100,
"pages": null,
"number": 1
},
"items": [
{
"country": "Brazil",
"currency": "Real",
"record_date": "2026-03-31",
"exchange_rate": "5.254",
"effective_date": "2026-03-31",
"country_currency_desc": "Brazil-Real"
}
],
"total": 5421,
"source": {
"url": "https://fiscaldata.treasury.gov/api-documentation/",
"license": "US Government work, public domain.",
"provider": "US Treasury Fiscal Data API (Bureau of the Fiscal Service)"
}
}
}Tags
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