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

# Export campaign leads as CSV

> **Export all leads for a campaign as a CSV file**

Returns a CSV download containing every lead in the campaign regardless of
pagination limits. The file includes the following columns:

`email`, `first_name`, `last_name`, `company`, `status`, `custom_fields`
(JSON-encoded), `created_at`

## Example

```python
import requests

campaign_id = "550e8400-e29b-41d4-a716-446655440000"

response = requests.get(
    f"https://api.coldsend.io/api/public/v1/campaigns/{campaign_id}/leads/export",
    headers={"X-API-Key": "your-api-key"}
)

with open("leads_export.csv", "wb") as f:
    f.write(response.content)
```



## OpenAPI

````yaml /public_openapi.json get /api/public/v1/campaigns/{campaign_id}/leads/export
openapi: 3.0.3
info:
  title: ColdSend Public API
  description: >-
    Programmatic access to ColdSend for managing cold email campaigns and sender
    accounts.
  version: 1.0.0
  contact:
    name: ColdSend Support
    email: support@coldsend.pro
    url: https://coldsend.pro
servers:
  - url: https://api.coldsend.pro
    description: Production
security:
  - ApiKeyAuth: []
paths:
  /api/public/v1/campaigns/{campaign_id}/leads/export:
    get:
      tags:
        - Leads
      summary: Export campaign leads as CSV
      description: >-
        **Export all leads for a campaign as a CSV file**


        Returns a CSV download containing every lead in the campaign regardless
        of

        pagination limits. The file includes the following columns:


        `email`, `first_name`, `last_name`, `company`, `status`, `custom_fields`

        (JSON-encoded), `created_at`


        ## Example


        ```python

        import requests


        campaign_id = "550e8400-e29b-41d4-a716-446655440000"


        response = requests.get(
            f"https://api.coldsend.io/api/public/v1/campaigns/{campaign_id}/leads/export",
            headers={"X-API-Key": "your-api-key"}
        )


        with open("leads_export.csv", "wb") as f:
            f.write(response.content)
        ```
      operationId: export_leads_api_public_v1_campaigns__campaign_id__leads_export_get
      parameters:
        - name: campaign_id
          in: path
          required: true
          schema:
            type: string
            format: uuid
            title: Campaign Id
      responses:
        '200':
          description: CSV file download
          content:
            text/csv: {}
        '401':
          description: Missing or invalid API key
        '403':
          description: Insufficient permissions - requires 'leads:read' scope
        '404':
          description: Campaign not found
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key
      description: API key with format cs_live_xxx

````