{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/kraken/refs/heads/main/json-schema/futures-rest-instruments-response-schema.json",
  "title": "InstrumentsResponse",
  "description": "InstrumentsResponse schema from Kraken Futures REST API",
  "allOf": [
    {
      "type": "object",
      "properties": {
        "result": {
          "type": "string",
          "enum": [
            "success",
            "error"
          ],
          "example": "success"
        },
        "serverTime": {
          "type": "string",
          "format": "date-time",
          "example": "2026-05-30T00:00:00Z"
        },
        "error": {
          "type": "string",
          "example": "string"
        }
      }
    },
    {
      "type": "object",
      "properties": {
        "instruments": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "symbol": {
                "type": "string",
                "example": "PI_XBTUSD"
              },
              "type": {
                "type": "string",
                "enum": [
                  "futures_inverse",
                  "futures_vanilla",
                  "flexible_futures",
                  "perpetual_inverse",
                  "perpetual_vanilla"
                ],
                "example": "futures_inverse"
              },
              "tradeable": {
                "type": "boolean",
                "example": true
              },
              "underlying": {
                "type": "string",
                "example": "string"
              },
              "lastTradingTime": {
                "type": "string",
                "format": "date-time",
                "example": "2026-05-30T00:00:00Z"
              },
              "tickSize": {
                "type": "number",
                "example": 0.01
              },
              "contractSize": {
                "type": "number",
                "example": 0.01
              },
              "marginLevels": {
                "type": "array",
                "items": {
                  "type": "object"
                },
                "example": "0.01"
              },
              "fundingRateCoefficient": {
                "type": "number",
                "example": 0.01
              },
              "maxRelativeFundingRate": {
                "type": "number",
                "example": 0.01
              }
            }
          },
          "example": []
        }
      }
    }
  ]
}