> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tesouro.com/llms.txt
> Use this file to discover all available pages before exploring further.

# MerchantCategory

`OBJECT`

## Fields

<ResponseField name="code" type="String!" required>
  Unique ISO four digit value used to classify merchants and their transactions into specific
  categories based on the type of business, trade or services supplied.
</ResponseField>