NetIntel

Daily historical exchange-rate series for any currency pair — fiat via ECB reference data, crypto via Coinbase daily closes — with min/max/average/change stats, no API key. Pass start/end dates or a days lookback (default 30). The history sibling of /currency-exchange/convert: trend and repricing context for the pairs agents already quote spot.

Resource: netintel.dev/currency-exchange/history

Network: eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0xdaDc335482AD545296Fd7b28518A251fFCbEb9Df

Payment methods: — · Last validation: 2026-09-13 22:50:52.925+00

{
  "input": {
    "type": "object",
    "required": [
      "type",
      "method"
    ],
    "properties": {
      "type": {
        "type": "string",
        "const": "http"
      },
      "method": {
        "enum": [
          "GET"
        ],
        "type": "string"
      },
      "queryParams": {
        "type": "object",
        "required": [
          "from",
          "to"
        ],
        "properties": {
          "to": {
            "type": "string",
            "description": "One target code, e.g. EUR or BTC. Aliases: target, quote"
          },
          "end": {
            "type": "string",
            "description": "Range end, YYYY-MM-DD; default today. Alias: to_date"
          },
          "days": {
            "type": "number",
            "description": "Alternative to start/end: lookback window ending today; default 30. Alias: period"
          },
          "from": {
            "type": "string",
            "description": "Base currency: ISO 4217 fiat code or crypto ticker, e.g. USD or BTC. Aliases: base, source"
          },
          "start": {
            "type": "string",
            "description": "Range start, YYYY-MM-DD. Alias: from_date. Caps: ECB fiat 366d, other fiat 90d, crypto 300d"
          }
        }
      }
    },
    "additionalProperties": false
  },
  "output": {
    "type": "object",
    "required": [
      "type"
    ],
    "properties": {
      "type": {
        "type": "string"
      },
      "example": {
        "type": "object",
        "properties": {
          "to": {
            "type": "string"
          },
          "end": {
            "type": "string"
          },
          "from": {
            "type": "string"
          },
          "stale": {
            "type": "boolean"
          },
          "start": {
            "type": "string"
          },
          "stats": {
            "type": "object",
            "properties": {
              "max": {
                "type": "number"
              },
              "min": {
                "type": "number"
              },
              "average": {
                "type": "number"
              },
              "change_pct": {
                "type": "number",
                "description": "first→last point, %"
              },
              "volatility_pct": {
                "type": "number",
                "description": "stdev of daily % changes"
              }
            }
          },
          "series": {
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "date": {
                  "type": "string"
                },
                "rate": {
                  "type": "number",
                  "description": "units of `to` per 1 `from` on that date"
                }
              }
            }
          },
          "source": {
            "type": "string",
            "description": "frankfurter | ecb-xml | currency-api | coinbase"
          },
          "findings": {
            "type": "array"
          },
          "point_count": {
            "type": "number"
          },
          "cache_age_seconds": {
            "type": "number"
          }
        }
      }
    }
  },
  "paymentRequirements": [
    {
      "raw": {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xdaDc335482AD545296Fd7b28518A251fFCbEb9Df",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "payTo": "0xdaDc335482AD545296Fd7b28518A251fFCbEb9Df",
      "scheme": "exact",
      "network": "eip155:8453",
      "amountAtomic": "20000"
    },
    {
      "raw": {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
        },
        "payTo": "8FVeybWnB4dYrxTuPK7WzFZNAiEcFVaDLFnKpRwVGr5s",
        "amount": "20000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      },
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "payTo": "8FVeybWnB4dYrxTuPK7WzFZNAiEcFVaDLFnKpRwVGr5s",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "amountAtomic": "20000"
    }
  ]
}

Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.