Get series as of a date (vintage)
get_series_as_ofRead-only
Retrieve a FRED economic time series exactly as it was known on a specified past date, before any later revisions.
Instructions
A series EXACTLY as it was known on a past date — before later revisions.
`series_id`: a FRED series ID. `as_of`: the knowledge date (ISO) — e.g.
"2009-03-18" shows the data the Fed saw at its March 2009 meeting.
`start`/`end` bound the observation window as usual.
Vintage coverage varies by series: dates before the first vintage have no
data (check `get_vintage_dates`). Values can differ sharply from today's —
that's the point.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| series_id | Yes | ||
| as_of | Yes | ||
| start | No | ||
| end | No | ||
| max_points | No |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| series_id | Yes | The FRED series ID | |
| title | Yes | Series title (current title) | |
| as_of | Yes | The knowledge date — values are as published on this date, before any later revisions | |
| units | Yes | Units of the values | |
| observations | Yes | The data as known on as_of, oldest first | |
| truncated | Yes | True if more observations exist than were returned |