{ "opencollection": "1.0.0", "info": { "name": "FRED Maps API (GeoFRED) Categories Observations API", "version": "1.0" }, "request": { "auth": { "type": "apikey", "key": "api_key", "value": "{{api_key}}", "placement": "query" } }, "items": [ { "info": { "name": "Observations", "type": "folder" }, "items": [ { "info": { "name": "FRED Get the Observations or Data Values for an Economic Data Series", "type": "http" }, "http": { "method": "GET", "url": "https://api.stlouisfed.org/geofred/series/observations", "params": [ { "name": "api_key", "value": "abcdef0123456789abcdef0123456789", "type": "query", "description": "32-character lower-case alphanumeric FRED API key." }, { "name": "file_type", "value": "json", "type": "query", "description": "Response format. xml (default) or json. The observations endpoint additionally accepts xlsx and csv." }, { "name": "series_id", "value": "UNRATE", "type": "query", "description": "The FRED series ID." }, { "name": "realtime_start", "value": "2026-05-28", "type": "query", "description": "Start of the real-time period (YYYY-MM-DD). Defaults to today." }, { "name": "realtime_end", "value": "2026-05-28", "type": "query", "description": "End of the real-time period (YYYY-MM-DD). Defaults to today." }, { "name": "limit", "value": "100", "type": "query", "description": "Maximum number of observations to return (1–100000)." }, { "name": "offset", "value": "0", "type": "query", "description": "Non-negative integer offset into the result set for pagination." }, { "name": "sort_order", "value": "asc", "type": "query", "description": "Sort by observation_date." }, { "name": "observation_start", "value": "2020-01-01", "type": "query", "description": "Earliest observation date (YYYY-MM-DD)." }, { "name": "observation_end", "value": "2026-04-01", "type": "query", "description": "Latest observation date (YYYY-MM-DD)." }, { "name": "units", "value": "lin", "type": "query", "description": "Unit transformation applied to the data." }, { "name": "frequency", "value": "m", "type": "query", "description": "Frequency to aggregate the series to." }, { "name": "aggregation_method", "value": "avg", "type": "query", "description": "How to aggregate when a frequency is supplied." }, { "name": "output_type", "value": "1", "type": "query", "description": "Observations output type. 1=observations by real-time period" }, { "name": "vintage_dates", "value": "2024-01-15,2025-01-15", "type": "query", "description": "Comma-separated list of YYYY-MM-DD vintage dates." } ] }, "docs": "Get the observations or data values for an economic data series. Supports frequency aggregation and unit transformations." } ] } ], "bundled": true }