Convert one bounded fiat amount using the latest successfully fetched European C

Convert one bounded fiat amount using the latest successfully fetched European Central Bank daily foreign-exchange reference table. Forest returns the ECB observation date and deterministic cross-rates through EUR. Fresh reads use the latest published working-day data; bounded outage fallback is explicitly labeled as cached official data. Reference data only: not an intraday market quote, bid/ask spread, executable transaction price, forecast, or trading recommendation. Base mainnet USDC

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Endpoint

POST https://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/fx/reference

Our checks, last 30 days

Example input (from the provider)

{
  "body": {
    "amount": "100.00",
    "from": "USD",
    "to": "CZK"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "properties": {
            "amount": {
              "description": "Public amount value used to scope this lookup.",
              "type": [
                "number",
                "string"
              ]
            },
            "from": {
              "description": "Public from value used to scope this lookup.",
              "pattern": "^[A-Za-z]{3}$",
              "type": "string"
            },
            "to": {
              "description": "Public to value used to scope this lookup.",
              "pattern": "^[A-Za-z]{3}$",
              "type": "string"
            }
          },
          "required": [
            "from",
            "to",
            "amount"
          ],
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "additionalProperties": false,
          "properties": {
            "capability": {
              "const": "fx.reference",
              "description": "Public capability value used to scope this lookup."
            },
            "data": {
              "additionalProperties": false,
              "description": "Public data value used to scope this lookup.",
              "properties": {
                "amount": {
                  "description": "Public amount value used to scope this lookup.",
                  "pattern": "^-?(?:0|[1-9]\\d*)(?:\\.\\d+)?$",
                  "type": "string"
                },
                "amount_rounding_decimals": {
                  "const": 6,
                  "description": "Public amount rounding decimals value used to scope this lookup."
                },
                "base_source_currency": {
                  "const": "EUR",
                  "description": "Public base source currency value used to scope this lookup."
                },
                "cache_age_ms": {
                  "description": "Public cache age ms value used to scope this lookup.",
                  "maximum": 604800000,
                  "minimum": 0,
                  "type": "integer"
                },
                "converted_amount": {
                  "description": "Public amount value used to scope this lookup.",
                  "pattern": "^-?(?:0|[1-9]\\d*)(?:\\.\\d+)?$",
                  "type": "string"
                },
                "freshness": {
                  "description": "Public freshness value used to scope this lookup.",
                  "enum": [
                    "latest_published_working_day",
                    "cached_official_observation"
                  ],
                  "type": "string"
                },
                "from": {
                  "description": "Public from value used to scope this lookup.",
                  "pattern": "^[A-Z]{3}$",
                  "type": "string"
                },
                "observation_date": {
                  "description": "Public observation date value used to scope this lookup.",
                  "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
                  "type": "string"
                },
                "reference_rate": {
                  "description": "Public amount value used to scope this lookup.",
                  "pattern": "^-?(?:0|[1-9]\\d*)(?:\\.\\d+)?$",
                  "type": "string"
                },
                "source": {
                  "const": "European Central Bank",
                  "description": "Public source value used to scope this lookup."
                },
                "source_kind": {
                  "const": "daily_reference_rate",
                  "description": "Public source kind value used to scope this lookup."
                },
                "source_url": {
                  "const": "https://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml",
                  "description": "Public source url value used to scope this lookup."
                },
                "stale_cache_fallback": {
                  "description": "Public stale cache fallback value used to scope this lookup.",
                  "type": "boolean"
                },
                "to": {
                  "description": "Public to value used to scope this lookup.",
                  "pattern": "^[A-Z]{3}$",
                  "type": "string"
                },
                "transaction_quote": {
                  "const": false,
                  "description": "Public transaction quote value used to scope this lookup."
                }
              },
              "required": [
                "from",
                "to",
                "amount",
                "reference_rate",
                "converted_amount",
                "amount_rounding_decimals",
                "observation_date",
                "base_source_currency",
                "source",
                "source_url",
                "source_kind",
                "freshness",
                "stale_cache_fallback",
                "transaction_quote",
                "cache_age_ms"
              ],
              "type": "object"
            },
            "meta": {
              "additionalProperties": false,
              "description": "Public meta value used to scope this lookup.",
              "properties": {
                "cache": {
     

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