{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/watttime/refs/heads/main/json-structure/watttime-region-access-structure.json",
  "name": "RegionAccess",
  "description": "RegionAccess schema from WattTime API",
  "type": "object",
  "properties": {
    "region": {
      "type": "string",
      "description": "Grid region identifier.",
      "example": "CAISO_NORTH"
    },
    "region_full_name": {
      "type": "string",
      "description": "Human-readable full name of the grid region.",
      "example": "California ISO - North"
    },
    "signal_type": {
      "type": "string",
      "description": "Signal type available for this region.",
      "example": "co2_moer"
    },
    "model": {
      "type": "object",
      "description": "Current model version metadata.",
      "properties": {
        "date": {
          "type": "string",
          "description": "Model version date.",
          "example": "2026-03-01"
        }
      }
    },
    "data_start": {
      "type": "datetime",
      "description": "Earliest available data point for this region.",
      "example": "2019-01-01T00:00:00Z"
    },
    "access": {
      "type": "string",
      "description": "Access level for this region.",
      "example": "read"
    }
  }
}