U.S. Government Gold Reserve by Vault, Monthly

{
  "type": "object",
  "required": [
    "limit"
  ],
  "properties": {
    "page": {
      "type": "integer",
      "default": 1,
      "maximum": 10000,
      "minimum": 1,
      "description": "Which page of `limit` rows to return, starting at 1. A page past the last one is an error; meta.total-pages says how many there are."
    },
    "limit": {
      "type": "integer",
      "maximum": 1000,
      "minimum": 1,
      "description": "How many rows to return, newest month first, 1 to 1000. Every month has exactly eight rows, so 8 covers the latest month in full."
    },
    "filter": {
      "type": "string",
      "default": "",
      "maxLength": 500,
      "description": "Optional Fiscal Data filter: field:operator:value terms separated by commas, all of which must hold. Fields: record_date (the month end, YYYY-MM-DD), facility_desc (Mint Held Gold - Deep Storage, Mint Held Gold - Working Stock or Federal Reserve Bank Held Gold), form_desc (Gold Bullion or Gold Coins), location_desc (for example Fort Knox, KY), fine_troy_ounce_qty and book_value_amt. Operators: eq, lt, lte, gt, gte, in (a parenthesised list). Examples: record_date:eq:2026-09-30 for one month's full eight lines, location_desc:eq:Fort Knox, KY for the Fort Knox history, and facility_desc:eq:Federal Reserve Bank Held Gold,record_date:gte:2020-01-01 for the Federal Reserve lines since 2020. Leave empty for no filter. A value that matches nothing returns an empty list; an unknown field or operator is a validation error."
    }
  },
  "additionalProperties": false
}

{
  "type": "object",
  "required": [
    "data",
    "meta"
  ],
  "properties": {
    "data": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "record_date",
          "facility_desc",
          "form_desc",
          "location_desc",
          "fine_troy_ounce_qty",
          "book_value_amt",
          "src_line_nbr"
        ],
        "properties": {
          "form_desc": {
            "type": "string",
            "description": "The physical form: Gold Bullion or Gold Coins."
          },
          "record_date": {
            "type": "string",
            "description": "The month end the figures are as of, YYYY-MM-DD."
          },
          "src_line_nbr": {
            "type": "string",
            "description": "The row's position in the Treasury's own table for that month, as a string, 1 through 8."
          },
          "facility_desc": {
            "type": "string",
            "description": "Who holds it: Mint Held Gold - Deep Storage, Mint Held Gold - Working Stock, or Federal Reserve Bank Held Gold."
          },
          "location_desc": {
            "type": "string",
            "description": "Where it is, for example Fort Knox, KY, Denver, CO, West Point, NY, or Federal Reserve Banks - NY Vault. The working-stock line is pooled across locations rather than sited."
          },
          "book_value_amt": {
            "type": "string",
            "description": "The carrying value in dollars, as a decimal string. It is the 1973 statutory valuation of $42.2222 per fine troy ounce and is NOT a market value, so it does not say what the gold is worth."
          },
          "fine_troy_ounce_qty": {
            "type": "string",
            "description": "The quantity in fine troy ounces, as a decimal string. This is the figure to carry forward; it is the only one that is not an accounting convention."
          }
        },
        "additionalProperties": true
      },
      "description": "One row per holding location per month, eight per month with no total row. Empty when nothing matches."
    },
    "meta": {
      "type": "object",
      "required": [
        "count",
        "total-count",
        "total-pages"
      ],
      "properties": {
        "count": {
          "type": "integer",
          "description": "How many rows this page holds."
        },
        "labels": {
          "type": "object",
          "description": "Human-readable name of each column."
        },
        "dataTypes": {
          "type": "object",
          "description": "The Treasury's type name for each column."
        },
        "dataFormats": {
          "type": "object",
          "description": "The Treasury's display format for each column."
        },
        "total-count": {
          "type": "integer",
          "description": "How many rows match the filter in all, across every page."
        },
        "total-pages": {
          "type": "integer",
          "description": "How many pages of `limit` rows the whole match makes."
        }
      },
      "additionalProperties": true
    },
    "links": {
      "type": "object",
      "description": "Treasury's own self, first, prev, next and last page links."
    }
  },
  "description": "The Treasury's response: the gold holding rows, newest month first and in the Treasury's own order within a month, and a meta block with the match count.",
  "additionalProperties": true
}