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

# Subscribers by tracking link

> Returns json data about subscribers for a specific tracking link



## OpenAPI

````yaml openapi2 GET /analytics/subscribers_by_tracking_link
openapi: 3.0.3
info:
  title: Paubox Marketing API
  description: >
    Public documentation Paubox Marketing API. 


    All Paubox Marketing customers have access to the Paubox Marketing API to
    automate various tasks.


    ## Authentication

    Use the authorization header in requests with the format: `authorization:
    Token token=<API_KEY>`


    Replace `<API_KEY>` with your API key. Find your API key in the address bar
    from the email builder (note: each API Key is displayed only once upon
    creation).


    ## Base URL

    The base URL includes your username:
    `https://api.paubox.net/v1/orca/<USERNAME>`


    Replace `<USERNAME>` with your API endpoint username.
  contact:
    name: Paubox Support
    url: https://www.paubox.com
  version: 1.0.0
servers:
  - url: https://api.paubox.net/v1/orca/{username}
    description: Production server
    variables:
      username:
        description: Your API endpoint username
        default: YOUR_USERNAME
security:
  - TokenAuth: []
tags:
  - name: subscribers
    description: Subscriber management operations
  - name: analytics
    description: Campaign analytics and reporting operations
  - name: campaign_mailings
    description: Campaign mailing management and sending operations
  - name: drip_campaigns
    description: Drip campaign management and automation operations
  - name: subscription_lists
    description: Subscription list management operations
  - name: tracking_links
    description: Tracking link analytics and data operations
paths:
  /analytics/subscribers_by_tracking_link:
    get:
      tags:
        - analytics
      summary: Fetch subscribers by tracking link
      description: Returns json data about subscribers for a specific tracking link
      operationId: getSubscribersByTrackingLink
      parameters:
        - name: campaign_mailing_send_id
          in: query
          description: Campaign id to search on
          required: true
          schema:
            type: string
        - name: html_id
          in: query
          description: html_id of the associated tracking link
          required: true
          schema:
            type: integer
        - name: order_by
          in: query
          description: Order by non-id attributes. Defaults to created_at
          required: false
          schema:
            type: string
            default: created_at
        - name: order
          in: query
          description: Order direction
          required: false
          schema:
            type: string
            enum:
              - asc
              - desc
            default: desc
      responses:
        '200':
          description: Subscribers by tracking link data
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SubscribersByTrackingLinkResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  schemas:
    SubscribersByTrackingLinkResponse:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/SubscribersByTrackingLinkResponse_data'
    SubscribersByTrackingLinkResponse_data:
      type: object
      properties:
        id:
          type: string
          description: Subscriber ID
        type:
          type: string
          description: Resource type
        attributes:
          $ref: '#/components/schemas/SubscribersByTrackingLinkResponse_attributes'
    Error:
      type: object
      properties:
        error:
          type: string
          description: Error message
        code:
          type: string
          description: Error code
        details:
          type: object
          description: Additional error details
    SubscribersByTrackingLinkResponse_attributes:
      type: object
      properties:
        email:
          type: string
          description: Subscriber's email address
          format: email
        first_name:
          type: string
          description: Subscriber's first name
        last_name:
          type: string
          description: Subscriber's last name
        custom_fields:
          type: array
          items:
            $ref: >-
              #/components/schemas/SubscribersByTrackingLinkResponse_attributes_custom_fields
    SubscribersByTrackingLinkResponse_attributes_custom_fields:
      type: object
      properties:
        subscriber_custom_field_type_id:
          type: string
          description: Custom field type ID
        value:
          type: string
          description: Custom field value
  responses:
    BadRequest:
      description: Bad request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Unauthorized
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    InternalServerError:
      description: Internal server error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    TokenAuth:
      type: apiKey
      description: >-
        Token-based authentication. Use format: "Token token=<API_KEY>" where
        <API_KEY> is your API key
      name: authorization
      in: header

````