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

# Industries API

> List industries for the authenticated user - GET /industries

<Note>
  This endpoint requires authentication via API key passed as a query parameter (`api_key`).
</Note>

## Query Parameters

<ParamField query="api_key" type="string" required>
  Your SmartLead API key for authentication
</ParamField>

<ParamField query="limit" type="string">
  Number of industries to return (1–100). Pattern: ^\[1-9]\[0-9]\*\$ or 100. Default: "10".
</ParamField>

<ParamField query="offset" type="string">
  Number of industries to skip for pagination (≥ 0). Pattern: ^\[0-9]+\$. Default: "0".
</ParamField>

<ParamField query="search" type="string">
  Search string to match industry names starting with this value (1–255 characters).
</ParamField>

<ParamField query="withSubIndustry" type="string">
  Include sub-industries for each industry. Values: true or false.
</ParamField>

<RequestExample>
  ```bash cURL theme={null}
  curl -X GET "https://prospect-api.smartlead.ai/api/v1/search-email-leads/industries?api_key=YOUR_API_KEY"
  ```
</RequestExample>

## Response Codes

<ResponseField name="200" type="Success">
  Request successful
</ResponseField>

<ResponseField name="401" type="Unauthorized">
  Unauthorized
</ResponseField>

<ResponseField name="500" type="Internal Server Error">
  Internal Server Error
</ResponseField>

<ResponseExample>
  ```json 200 - Success theme={null}
  {
    "success": true,
    "message": "Data retrieved successfully",
    "data": [
      {
        "id": 1,
        "industry_name": "Technology",
        "sub_industry_list": [
          { "sub_industry_name": "Software" },
          { "sub_industry_name": "Hardware" }
        ]
      },
      {
        "id": 2,
        "industry_name": "Healthcare",
        "sub_industry_list": []
      }
    ],
    "pagination": {
      "limit": 10,
      "offset": 0,
      "page": 1,
      "count": 2
    },
    "search": null
  }
  ```

  ```json 401 - Unauthorized theme={null}
  {
    "statusCode": 401,
    "success": false,
    "message": "Unauthorized",
    "error": "User not authenticated"
  }
  ```
</ResponseExample>