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

# Create an Audience

> Creates a new audience, optionally seeded with a list of contacts. Prefer this over editing an existing audience when you need to target one specific campaign, since audiences can be shared across campaigns.



## OpenAPI

````yaml https://api.monaco.com/openapi.json post /v1/audiences
openapi: 3.1.0
info:
  title: Monaco Public API
  description: Public API for Monaco
  version: 1.0.0
servers:
  - url: https://api.monaco.com
security: []
paths:
  /v1/audiences:
    post:
      tags:
        - Audiences
      summary: Create an Audience
      description: >-
        Creates a new audience, optionally seeded with a list of contacts.
        Prefer this over editing an existing audience when you need to target
        one specific campaign, since audiences can be shared across campaigns.
      operationId: create_audience
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateAudienceRequest'
        required: true
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PublicItemResponse_AudienceResponse_'
              example:
                data:
                  id: aud_abc123
                  name: Q2 Enterprise Prospects
                  type: static
                  status: active
                  contact_count: 2
                  created_at: '2026-05-11T10:30:00Z'
                  updated_at: '2026-05-11T10:30:00Z'
                meta:
                  timestamp: '2026-05-11T10:30:00Z'
        4XX:
          description: Client error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PublicErrorResponse'
components:
  schemas:
    CreateAudienceRequest:
      properties:
        name:
          type: string
          title: Name
          description: Name of the audience to create
          examples:
            - Q2 Enterprise Prospects
        contact_ids:
          anyOf:
            - items:
                type: string
                format: uuid
              type: array
              maxItems: 10000
            - type: 'null'
          title: Contact Ids
          description: Optional list of contact IDs to add to the audience on creation
      type: object
      required:
        - name
      title: CreateAudienceRequest
    PublicItemResponse_AudienceResponse_:
      properties:
        data:
          $ref: '#/components/schemas/AudienceResponse'
        meta:
          $ref: '#/components/schemas/ResponseMeta'
      type: object
      required:
        - data
      title: PublicItemResponse[AudienceResponse]
    PublicErrorResponse:
      properties:
        error:
          $ref: '#/components/schemas/ErrorDetail'
      type: object
      required:
        - error
      title: PublicErrorResponse
    AudienceResponse:
      properties:
        id:
          type: string
          title: Id
          description: Unique identifier for the audience
          examples:
            - aud_abc123
        name:
          type: string
          title: Name
          description: Name of the audience
          examples:
            - Q2 Enterprise Prospects
        type:
          type: string
          title: Type
          description: Audience type
          examples:
            - static
        status:
          type: string
          title: Status
          description: Audience status
          examples:
            - active
        contact_count:
          type: integer
          title: Contact Count
          description: Number of contacts currently in the audience
          examples:
            - 42
        created_at:
          type: string
          format: date-time
          title: Created At
          description: Date and time the audience was created
        updated_at:
          type: string
          format: date-time
          title: Updated At
          description: Date and time the audience was last updated
      type: object
      required:
        - id
        - name
        - type
        - status
        - contact_count
        - created_at
        - updated_at
      title: AudienceResponse
    ResponseMeta:
      properties:
        timestamp:
          type: string
          format: date-time
          title: Timestamp
          description: Server timestamp of the response
      type: object
      title: ResponseMeta
    ErrorDetail:
      properties:
        code:
          type: string
          title: Code
          description: Machine-readable error code
          examples:
            - not_found
        message:
          type: string
          title: Message
          description: Human-readable error message
          examples:
            - Resource not found
      type: object
      required:
        - code
        - message
      title: ErrorDetail

````