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API Keys | Terms of Use

fred/series/vintagedates

Description

Get the dates in history when a series' data values were revised or new data values were released. Vintage dates are the release dates for a series excluding release dates when the data for the series did not change.

Examples

This request can return either XML or JSON by setting the file_type parameter to xml or json. Note that the default value of file_type is xml. The API key 'abcdefghijklmnopqrstuvwxyz123456' is for demonstration purposes only. Use a registered API key instead.

XML

Request (HTTPS GET)

https://api.stlouisfed.org/fred/series/vintagedates?series_id=GNPCA&api_key=abcdefghijklmnopqrstuvwxyz123456

Response

<vintage_dates realtime_start="1776-07-04" realtime_end="9999-12-31" order_by="vintage_date" sort_order="asc" count="162" offset="0" limit="10000">
<vintage_date>1958-12-21</vintage_date>
<vintage_date>1959-02-19</vintage_date>
<vintage_date>1959-07-19</vintage_date>
<vintage_date>1960-02-16</vintage_date>
<vintage_date>1960-07-22</vintage_date>
<vintage_date>1961-02-19</vintage_date>
<vintage_date>1961-07-19</vintage_date>
<vintage_date>1962-02-24</vintage_date>
<vintage_date>1962-07-20</vintage_date>
<vintage_date>1963-02-20</vintage_date>
<vintage_date>1963-07-22</vintage_date>
<vintage_date>1964-02-20</vintage_date>
<vintage_date>1964-07-16</vintage_date>
<vintage_date>1965-01-14</vintage_date>
<vintage_date>1965-02-17</vintage_date>
<vintage_date>1965-08-19</vintage_date>
<vintage_date>1966-01-13</vintage_date>
<vintage_date>1966-02-15</vintage_date>
<vintage_date>1966-07-15</vintage_date>
<vintage_date>1967-01-13</vintage_date>
<vintage_date>1967-02-17</vintage_date>
<vintage_date>1967-07-17</vintage_date>
<vintage_date>1968-01-16</vintage_date>
<vintage_date>1968-02-15</vintage_date>
<vintage_date>1968-07-18</vintage_date>
<vintage_date>1969-01-14</vintage_date>
<vintage_date>1969-02-14</vintage_date>
<vintage_date>1969-07-17</vintage_date>
<vintage_date>1970-01-16</vintage_date>
<vintage_date>1970-02-13</vintage_date>
<vintage_date>1970-07-17</vintage_date>
<vintage_date>1971-01-18</vintage_date>
<vintage_date>1971-02-12</vintage_date>
<vintage_date>1971-07-16</vintage_date>
<vintage_date>1972-01-21</vintage_date>
<vintage_date>1972-02-18</vintage_date>
<vintage_date>1972-07-21</vintage_date>
<vintage_date>1973-01-19</vintage_date>
<vintage_date>1973-02-20</vintage_date>
<vintage_date>1973-07-19</vintage_date>
<vintage_date>1974-01-17</vintage_date>
<vintage_date>1974-02-20</vintage_date>
<vintage_date>1974-07-18</vintage_date>
<vintage_date>1975-01-16</vintage_date>
<vintage_date>1975-03-20</vintage_date>
<vintage_date>1976-01-16</vintage_date>
<vintage_date>1976-01-20</vintage_date>
<vintage_date>1976-02-19</vintage_date>
<vintage_date>1976-03-19</vintage_date>
<vintage_date>1976-07-20</vintage_date>
<vintage_date>1977-01-18</vintage_date>
<vintage_date>1977-02-18</vintage_date>
<vintage_date>1977-03-21</vintage_date>
<vintage_date>1977-07-21</vintage_date>
<vintage_date>1978-01-19</vintage_date>
<vintage_date>1978-02-21</vintage_date>
<vintage_date>1978-03-20</vintage_date>
<vintage_date>1978-07-21</vintage_date>
<vintage_date>1979-01-18</vintage_date>
<vintage_date>1979-02-22</vintage_date>
<vintage_date>1979-03-20</vintage_date>
<vintage_date>1979-07-20</vintage_date>
<vintage_date>1980-01-18</vintage_date>
<vintage_date>1980-02-22</vintage_date>
<vintage_date>1980-03-19</vintage_date>
<vintage_date>1980-12-23</vintage_date>
<vintage_date>1981-01-21</vintage_date>
<vintage_date>1981-02-19</vintage_date>
<vintage_date>1981-03-18</vintage_date>
<vintage_date>1982-01-20</vintage_date>
<vintage_date>1982-02-22</vintage_date>
<vintage_date>1982-03-19</vintage_date>
<vintage_date>1982-07-21</vintage_date>
<vintage_date>1983-01-19</vintage_date>
<vintage_date>1983-02-22</vintage_date>
<vintage_date>1983-03-21</vintage_date>
<vintage_date>1983-07-21</vintage_date>
<vintage_date>1984-01-20</vintage_date>
<vintage_date>1984-02-17</vintage_date>
<vintage_date>1984-03-20</vintage_date>
<vintage_date>1984-07-23</vintage_date>
<vintage_date>1985-01-22</vintage_date>
<vintage_date>1985-02-21</vintage_date>
<vintage_date>1985-03-21</vintage_date>
<vintage_date>1985-12-20</vintage_date>
<vintage_date>1986-01-22</vintage_date>
<vintage_date>1986-02-20</vintage_date>
<vintage_date>1986-03-19</vintage_date>
<vintage_date>1986-07-22</vintage_date>
<vintage_date>1987-01-22</vintage_date>
<vintage_date>1987-02-19</vintage_date>
<vintage_date>1987-03-18</vintage_date>
<vintage_date>1987-07-24</vintage_date>
<vintage_date>1988-01-27</vintage_date>
<vintage_date>1988-02-25</vintage_date>
<vintage_date>1988-03-23</vintage_date>
<vintage_date>1988-07-27</vintage_date>
<vintage_date>1989-01-27</vintage_date>
<vintage_date>1989-02-28</vintage_date>
<vintage_date>1989-03-23</vintage_date>
<vintage_date>1989-07-27</vintage_date>
<vintage_date>1990-01-26</vintage_date>
<vintage_date>1990-02-28</vintage_date>
<vintage_date>1990-03-28</vintage_date>
<vintage_date>1990-07-27</vintage_date>
<vintage_date>1991-01-25</vintage_date>
<vintage_date>1991-02-27</vintage_date>
<vintage_date>1991-03-27</vintage_date>
<vintage_date>1991-12-04</vintage_date>
<vintage_date>1992-02-28</vintage_date>
<vintage_date>1992-03-26</vintage_date>
<vintage_date>1992-04-28</vintage_date>
<vintage_date>1992-07-30</vintage_date>
<vintage_date>1992-09-24</vintage_date>
<vintage_date>1992-12-22</vintage_date>
<vintage_date>1993-03-26</vintage_date>
<vintage_date>1993-08-31</vintage_date>
<vintage_date>1994-03-31</vintage_date>
<vintage_date>1994-07-29</vintage_date>
<vintage_date>1995-03-31</vintage_date>
<vintage_date>1996-01-19</vintage_date>
<vintage_date>1996-04-02</vintage_date>
<vintage_date>1996-08-01</vintage_date>
<vintage_date>1997-03-28</vintage_date>
<vintage_date>1997-04-30</vintage_date>
<vintage_date>1997-07-31</vintage_date>
<vintage_date>1998-03-26</vintage_date>
<vintage_date>1998-07-31</vintage_date>
<vintage_date>1999-03-31</vintage_date>
<vintage_date>1999-10-29</vintage_date>
<vintage_date>2000-03-30</vintage_date>
<vintage_date>2000-04-03</vintage_date>
<vintage_date>2000-04-27</vintage_date>
<vintage_date>2000-07-28</vintage_date>
<vintage_date>2001-03-29</vintage_date>
<vintage_date>2001-07-27</vintage_date>
<vintage_date>2002-03-28</vintage_date>
<vintage_date>2002-07-31</vintage_date>
<vintage_date>2003-03-27</vintage_date>
<vintage_date>2003-12-23</vintage_date>
<vintage_date>2004-01-30</vintage_date>
<vintage_date>2004-03-25</vintage_date>
<vintage_date>2004-07-30</vintage_date>
<vintage_date>2005-03-30</vintage_date>
<vintage_date>2005-07-29</vintage_date>
<vintage_date>2006-03-30</vintage_date>
<vintage_date>2006-07-28</vintage_date>
<vintage_date>2007-03-29</vintage_date>
<vintage_date>2007-07-27</vintage_date>
<vintage_date>2008-03-27</vintage_date>
<vintage_date>2008-07-31</vintage_date>
<vintage_date>2009-03-26</vintage_date>
<vintage_date>2009-07-31</vintage_date>
<vintage_date>2009-08-17</vintage_date>
<vintage_date>2010-03-26</vintage_date>
<vintage_date>2010-07-30</vintage_date>
<vintage_date>2011-03-25</vintage_date>
<vintage_date>2011-07-29</vintage_date>
<vintage_date>2012-03-29</vintage_date>
<vintage_date>2012-07-27</vintage_date>
<vintage_date>2013-03-28</vintage_date>
<vintage_date>2013-07-31</vintage_date>
</vintage_dates>

JSON

Request (HTTPS GET)

https://api.stlouisfed.org/fred/series/vintagedates?series_id=GNPCA&api_key=abcdefghijklmnopqrstuvwxyz123456&file_type=json

Response

{
    "realtime_start": "1776-07-04",
    "realtime_end": "9999-12-31",
    "order_by": "vintage_date",
    "sort_order": "asc",
    "count": 162,
    "offset": 0,
    "limit": 10000,
    "vintage_dates": [
        "1958-12-21",
        "1959-02-19",
        "1959-07-19",
        "1960-02-16",
        "1960-07-22",
        "1961-02-19",
        "1961-07-19",
        "1962-02-24",
        "1962-07-20",
        "1963-02-20",
        "1963-07-22",
        "1964-02-20",
        "1964-07-16",
        "1965-01-14",
        "1965-02-17",
        "1965-08-19",
        "1966-01-13",
        "1966-02-15",
        "1966-07-15",
        "1967-01-13",
        "1967-02-17",
        "1967-07-17",
        "1968-01-16",
        "1968-02-15",
        "1968-07-18",
        "1969-01-14",
        "1969-02-14",
        "1969-07-17",
        "1970-01-16",
        "1970-02-13",
        "1970-07-17",
        "1971-01-18",
        "1971-02-12",
        "1971-07-16",
        "1972-01-21",
        "1972-02-18",
        "1972-07-21",
        "1973-01-19",
        "1973-02-20",
        "1973-07-19",
        "1974-01-17",
        "1974-02-20",
        "1974-07-18",
        "1975-01-16",
        "1975-03-20",
        "1976-01-16",
        "1976-01-20",
        "1976-02-19",
        "1976-03-19",
        "1976-07-20",
        "1977-01-18",
        "1977-02-18",
        "1977-03-21",
        "1977-07-21",
        "1978-01-19",
        "1978-02-21",
        "1978-03-20",
        "1978-07-21",
        "1979-01-18",
        "1979-02-22",
        "1979-03-20",
        "1979-07-20",
        "1980-01-18",
        "1980-02-22",
        "1980-03-19",
        "1980-12-23",
        "1981-01-21",
        "1981-02-19",
        "1981-03-18",
        "1982-01-20",
        "1982-02-22",
        "1982-03-19",
        "1982-07-21",
        "1983-01-19",
        "1983-02-22",
        "1983-03-21",
        "1983-07-21",
        "1984-01-20",
        "1984-02-17",
        "1984-03-20",
        "1984-07-23",
        "1985-01-22",
        "1985-02-21",
        "1985-03-21",
        "1985-12-20",
        "1986-01-22",
        "1986-02-20",
        "1986-03-19",
        "1986-07-22",
        "1987-01-22",
        "1987-02-19",
        "1987-03-18",
        "1987-07-24",
        "1988-01-27",
        "1988-02-25",
        "1988-03-23",
        "1988-07-27",
        "1989-01-27",
        "1989-02-28",
        "1989-03-23",
        "1989-07-27",
        "1990-01-26",
        "1990-02-28",
        "1990-03-28",
        "1990-07-27",
        "1991-01-25",
        "1991-02-27",
        "1991-03-27",
        "1991-12-04",
        "1992-02-28",
        "1992-03-26",
        "1992-04-28",
        "1992-07-30",
        "1992-09-24",
        "1992-12-22",
        "1993-03-26",
        "1993-08-31",
        "1994-03-31",
        "1994-07-29",
        "1995-03-31",
        "1996-01-19",
        "1996-04-02",
        "1996-08-01",
        "1997-03-28",
        "1997-04-30",
        "1997-07-31",
        "1998-03-26",
        "1998-07-31",
        "1999-03-31",
        "1999-10-29",
        "2000-03-30",
        "2000-04-03",
        "2000-04-27",
        "2000-07-28",
        "2001-03-29",
        "2001-07-27",
        "2002-03-28",
        "2002-07-31",
        "2003-03-27",
        "2003-12-23",
        "2004-01-30",
        "2004-03-25",
        "2004-07-30",
        "2005-03-30",
        "2005-07-29",
        "2006-03-30",
        "2006-07-28",
        "2007-03-29",
        "2007-07-27",
        "2008-03-27",
        "2008-07-31",
        "2009-03-26",
        "2009-07-31",
        "2009-08-17",
        "2010-03-26",
        "2010-07-30",
        "2011-03-25",
        "2011-07-29",
        "2012-03-29",
        "2012-07-27",
        "2013-03-28",
        "2013-07-31"
    ]
}

Parameters

api_key

Read API Keys for more information.

  • 32 character alpha-numeric lowercase string, required

file_type

A key or file extension that indicates the type of file to send.

  • string, optional, default: xml
  • One of the following values: 'xml', 'json'

    xml = Extensible Markup Language. The HTTP Content-Type is text/xml.
    json = JavaScript Object Notation. The HTTP Content-Type is application/json.

series_id

The id for a series.

  • string, required

realtime_start

The start of the real-time period. For more information, see Real-Time Periods.

  • YYYY-MM-DD formatted string, optional, default: 1776-07-04 (earliest available)

realtime_end

The end of the real-time period. For more information, see Real-Time Periods.

  • YYYY-MM-DD formatted string, optional, default: 9999-12-31 (latest available)

limit

The maximum number of results to return.

  • integer between 1 and 10000, optional, default: 10000

offset

  • non-negative integer, optional, default: 0

sort_order

Sort results is ascending or descending vintage_date order.

  • One of the following strings: 'asc', 'desc'.
  • optional, default: asc

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