{
  "x402Version": 2,
  "id": 3928,
  "slug": "3928",
  "resource": "https://data.greeneris.io/v1/fx/official",
  "description": "Official US Treasury Reporting Rates of Exchange: the legal USD conversion rates required for FBAR/8938 filings and US federal accounting, covering ~170 currencies including exotics absent from ECB feeds. Query: ?currencies=Euro Zone-Euro,Japan-Yen (optional, all if omitted) and ?date=YYYY-MM-DD (latest quarterly rate at or before that date, default today). Returns units of foreign currency per 1 USD. Source updates quarterly; served with a 7-day cache.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x6ab8efe305cce67daa48c97bde29c04402822dff",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "5000",
      "maxTimeoutSeconds": 300
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  "outputSchema": {
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          "queryParams": {
            "currencies": "Euro Zone-Euro,Japan-Yen",
            "date": "2026-06-30"
          },
          "type": "http"
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            "count": 2,
            "rates": [
              {
                "country": "Euro Zone",
                "country_currency": "Euro Zone-Euro",
                "currency": "Euro",
                "effective_date": "2026-06-30",
                "rate_per_usd": 0.877,
                "record_date": "2026-06-30"
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            "source": "US Treasury FiscalData, Reporting Rates of Exchange (quarterly official rates, public domain)"
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              "queryParams": {
                "properties": {
                  "currencies": {
                    "description": "Comma-separated Treasury 'Country-Currency' descriptors, max 30 (optional -> all)",
                    "type": "string"
                  },
                  "date": {
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        "required": [
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        "type": "object"
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  "tags": [
    "bazaar"
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  "sourceHost": "data.greeneris.io",
  "lastUpdated": "2026-09-06T07:04:33.681Z",
  "quality": {
    "calls30d": 4,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-09-06T07:04:33.371Z"
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  "verified": false,
  "featured": false,
  "provider": {
    "host": "data.greeneris.io",
    "manifest_name": "data.greeneris.io",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}