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

# Get data step

> Fetch one Data Step by ID.

Returns one [`Data Step`](/en/api-reference/actions-and-attributes#data-step-object) with sensitive values masked.

## Headers

<ParamField header="Authorization" type="string" required>
  Bearer token containing your Fini workspace API key. Format: `Bearer fini_...` The key needs `read` scope.
</ParamField>

## Path parameters

<ParamField path="id" type="string" required>
  Data Step ID to fetch.
</ParamField>

## Response

Returns one [`Data Step`](/en/api-reference/actions-and-attributes#data-step-object).

## Errors

<AccordionGroup>
  <Accordion title="401 Unauthorized" icon="lock">
    The API key is missing, malformed, revoked, or invalid.
  </Accordion>

  <Accordion title="403 Forbidden" icon="shield-halved">
    The API key does not include the `read` scope required for this route.
  </Accordion>

  <Accordion title="500 Internal Server Error" icon="triangle-exclamation">
    Fini failed while loading the Data Step, for example when the ID does not exist or is not a valid ID.
  </Accordion>
</AccordionGroup>