FRED · JSON Structure

Api Observation List Structure

A list of observations for a series.

Type: object Properties: 13 Required: 1
FinanceGovernmentEconomic DataFederal ReserveTime SeriesOpen DataPublic APIs

ObservationList is a JSON Structure definition published by FRED, describing 13 properties, of which 1 is required. It conforms to the https://json-structure.org/meta/core/v0/# meta-schema.

Properties

realtime_start realtime_end observation_start observation_end units output_type file_type order_by sort_order count offset limit observations

Meta-schema: https://json-structure.org/meta/core/v0/#

JSON Structure

Raw ↑ 
{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/fred/refs/heads/main/json-structure/api-observation-list-structure.json",
  "name": "ObservationList",
  "description": "A list of observations for a series.",
  "type": "object",
  "properties": {
    "realtime_start": {
      "type": "date",
      "example": "2026-05-28"
    },
    "realtime_end": {
      "type": "date",
      "example": "2026-05-28"
    },
    "observation_start": {
      "type": "date",
      "example": "2026-05-28"
    },
    "observation_end": {
      "type": "date",
      "example": "2026-05-28"
    },
    "units": {
      "type": "string",
      "example": "Percent"
    },
    "output_type": {
      "type": "int32",
      "example": 1
    },
    "file_type": {
      "type": "string",
      "example": "example"
    },
    "order_by": {
      "type": "string",
      "example": "example"
    },
    "sort_order": {
      "type": "string",
      "example": "example"
    },
    "count": {
      "type": "int32",
      "example": 1
    },
    "offset": {
      "type": "int32",
      "example": 0
    },
    "limit": {
      "type": "int32",
      "example": 1000
    },
    "observations": {
      "type": "array",
      "items": {
        "$ref": "#/components/schemas/Observation"
      }
    }
  },
  "required": [
    "observations"
  ]
}