Index onlineMerchant portal
Api Endpoint

Greeneris FX Rates

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.

Open interactive test console

Offering

Provider
data.greeneris.io
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Financial Analysis
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://data.greeneris.io/v1/fx/official
MIME type
application/json
First seen
2026-10-16T01:51:20.002Z
Last seen
Tags
FX, treasury, official-rates, compliance, USD, Finance

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x6ab8efe305cce67daa48c97bde29c04402822dff"
  }
]

Observed health

Status
Healthy
Latest latency
103 ms
Average latency
294 ms
HTTP status
402
Last checked
Reachability
100% over 13 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "currencies": {
          "type": "string",
          "description": "Comma-separated Treasury 'Country-Currency' descriptors, max 30 (optional -> all)"
        },
        "date": {
          "type": "string",
          "description": "YYYY-MM-DD; latest quarterly rate at or before this date (default today)"
        }
      }
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "json",
  "example": {
    "as_of": "2026-06-30",
    "count": 2,
    "rates": [
      {
        "country": "Euro Zone",
        "currency": "Euro",
        "record_date": "2026-06-30",
        "rate_per_usd": 0.877,
        "effective_date": "2026-06-30",
        "country_currency": "Euro Zone-Euro"
      }
    ],
    "source": "US Treasury FiscalData, Reporting Rates of Exchange (quarterly official rates, public domain)"
  }
}