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

# List transmissions for a business



## OpenAPI

````yaml /api-reference/openapi.json get /api/v1/transmissions
openapi: 3.1.0
info:
  title: iZap API
  version: v1
  description: Public REST API for the iZap WhatsApp business messaging platform.
  contact:
    name: iZap API Support
    email: suporte@izap.ai
  license:
    name: MIT
    url: https://opensource.org/licenses/MIT
servers:
  - url: https://api.izap.ai
    description: Production
  - url: https://api-staging.izap.ai
    description: Staging
security:
  - bearerAuth: []
tags:
  - name: Auth
    description: Login and token refresh.
  - name: OAuth
    description: OAuth 2.1 / PKCE authorization for third-party and MCP clients.
  - name: Businesses
    description: Business profile, hours, menus, and chatbot configuration.
  - name: Chats
    description: Conversations, messages, and template sends.
  - name: Scheduling
    description: Customers, services, providers, and bookings (Trinks-backed).
  - name: WhatsApp Templates
    description: Manage and sync WhatsApp message templates.
  - name: Transmissions
    description: Bulk WhatsApp template broadcasts.
  - name: Me
    description: The authenticated user's own profile and active business.
paths:
  /api/v1/transmissions:
    get:
      tags:
        - Transmissions
      summary: List transmissions for a business
      operationId: listTransmissions
      parameters:
        - name: business-id
          in: header
          required: true
          schema:
            type: string
            format: uuid
        - name: status
          in: query
          required: false
          schema:
            type: string
        - name: limit
          in: query
          required: false
          schema:
            type: integer
            minimum: 1
            maximum: 200
            default: 50
      responses:
        '200':
          description: Transmissions, newest first.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TransmissionList'
              example:
                transmissions:
                  - transmission_id: tr1a2b3c-1234-4a5b-9c8d-abcdef123456
                    name: July promo
                    status: completed
                    transmission_type: whatsapp_template
                    template_name: order_confirmation
                    total_recipients: 98
                    sent_count: 96
                    failed_count: 2
                    pending_count: 0
                    progress_pct: 100
                    business_id: 6a1f2e2e-1c34-4e2a-9c3e-1234567890ab
                total: 1
                business_id: 6a1f2e2e-1c34-4e2a-9c3e-1234567890ab
        '401':
          description: Missing or invalid credentials.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              example:
                detail: Not authenticated
components:
  schemas:
    TransmissionList:
      type: object
      properties:
        transmissions:
          type: array
          items:
            $ref: '#/components/schemas/TransmissionStatus'
        total:
          type: integer
        business_id:
          type: string
          format: uuid
    Error:
      type: object
      properties:
        detail:
          type: string
    TransmissionStatus:
      type: object
      properties:
        transmission_id:
          type: string
          format: uuid
        name:
          type: string
        status:
          type: string
        transmission_type:
          type: string
        template_name:
          type: string
        total_recipients:
          type: integer
        sent_count:
          type: integer
        failed_count:
          type: integer
        pending_count:
          type: integer
        progress_pct:
          type: number
        scheduled_at:
          type: string
          format: date-time
          nullable: true
        started_at:
          type: string
          format: date-time
          nullable: true
        completed_at:
          type: string
          format: date-time
          nullable: true
        business_id:
          type: string
          format: uuid
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: >-
        JWT access token obtained from POST /api/v1/auth/jwt/login, the OAuth
        token endpoint, or a business-scoped API token. Some
        Business/Chat/Template/Scheduling endpoints alternatively accept HTTP
        Basic credentials scoped to the business slug.

````