Api Endpoint

Exchange Rate Feed

Official US Treasury reporting rates of exchange — government FX reference rates for ~170 currencies, in units of foreign currency per 1 USD, for the latest quarter. Use for accounting-grade and exotic-currency conversion the market /api/v1/forex feed lacks. Filter with `?currency=Euro`. Updated quarterly. From the US Treasury (FiscalData). From x402stock

Open interactive test console

Offering

Provider: x402stock.xyz
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://x402stock.xyz/api/v1/exchange-rates
MIME type: application/json
First seen: 2026-10-16T01:51:40.954Z
Last seen: 2026-11-04T22:28:45.230Z
Tags: None supplied

Website

Payment pricing

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

Payment option 1: 0.02 USDC
Atomic price: 20000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85"
  }
]

Observed health

Status: Healthy
Latest latency: 150 ms
Average latency: 481 ms
HTTP status: 402
Last checked: 2026-11-04T22:28:45.225Z
Reachability: 100% over 12 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",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "currency": {
          "type": "string",
          "minLength": 1,
          "maxLength": 64
        }
      },
      "additionalProperties": false
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "source": {
          "type": "string",
          "const": "us_treasury"
        },
        "as_of": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ]
        },
        "series": {
          "type": "string"
        },
        "note": {
          "type": "string"
        },
        "record_date": {
          "anyOf": [
            {
              "type": "string"
            },
            {
              "type": "null"
            }
          ]
        },
        "count": {
          "type": "number"
        },
        "rates": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "country": {
                "type": "string"
              },
              "currency": {
                "type": "string"
              },
              "country_currency": {
                "type": "string"
              },
              "exchange_rate": {
                "anyOf": [
                  {
                    "type": "number"
                  },
                  {
                    "type": "null"
                  }
                ]
              },
              "effective_date": {
                "type": "string"
              }
            },
            "required": [
              "country",
              "currency",
              "country_currency",
              "exchange_rate",
              "effective_date"
            ],
            "additionalProperties": false
          }
        }
      },
      "required": [
        "source",
        "as_of",
        "series",
        "note",
        "record_date",
        "count",
        "rates"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "type"
  ]
}