> ## 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.

# AmericanExpressOutput

> American Express payment network configuration for an acceptor, identifying which program (Direct or OptBlue) is in use.

`INTERFACE`

American Express payment network configuration for an acceptor, identifying which program (Direct or OptBlue) is in use.

## Fields

<ResponseField name="program" type="AmericanExpressProgram">
  The American Express program type indicating the relationship between the acceptor and American Express.

  <Expandable title="Possible enum values">
    <ResponseField name="OPT_BLUE" type="enum">
      An acquirer outside of American Express handles the financial settlement of funds, and manages chargebacks. American Express refers to this as its Opt-Blue program.
    </ResponseField>

    <ResponseField name="DIRECT" type="enum">
      Acceptor has a direct relationship with American Express who handles the financial settlement of funds, and manages chargebacks.
    </ResponseField>
  </Expandable>
</ResponseField>