Get the child categories for a specified parent category.
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.
For category_id 13 (U.S. Trade & International Transactions):
https://api.stlouisfed.org/fred/category/children?category_id=13&api_key=abcdefghijklmnopqrstuvwxyz123456
<?xml version="1.0" encoding="utf-8" ?>
<categories>
<category id="16" name="Exports" parent_id="13"/>
<category id="17" name="Imports" parent_id="13"/>
<category id="3000" name="Income Payments & Receipts" parent_id="13"/>
<category id="125" name="Trade Balance" parent_id="13"/>
<category id="127" name="U.S. International Finance" parent_id="13"/>
</categories>
The category tag's notes attribute is optional.
https://api.stlouisfed.org/fred/category/children?category_id=13&api_key=abcdefghijklmnopqrstuvwxyz123456&file_type=json
{
"categories": [
{
"id": 16,
"name": "Exports",
"parent_id": 13
},
{
"id": 17,
"name": "Imports",
"parent_id": 13
},
{
"id": 3000,
"name": "Income Payments & Receipts",
"parent_id": 13
},
{
"id": 125,
"name": "Trade Balance",
"parent_id": 13
},
{
"id": 127,
"name": "U.S. International Finance",
"parent_id": 13
}
]
}
Read API Keys for more information.
A key or file extension that indicates the type of file to send.
xml = Extensible Markup Language. The HTTP Content-Type is text/xml.
json = JavaScript Object Notation. The HTTP Content-Type is application/json.
The id for a category.
The start of the real-time period. For more information, see Real-Time Periods.
The end of the real-time period. For more information, see Real-Time Periods.