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

# List creative formats for an ad server source

> List the creative formats available on the ad server source's upstream tenant, optionally filtered by name or asset type. The response body is the upstream adapter's payload and varies by ad server.



## OpenAPI

````yaml /v2/storefront-api-v2.yaml get /esa/{esaId}/creative-formats
openapi: 3.0.0
info:
  title: Scope3 Storefront API
  version: 2.0.0
  description: >-
    REST API for partners to manage Seller Accounts, inventory sources, and
    billing.


    ## Authentication


    All endpoints require a Bearer token in the Authorization header:

    ```

    Authorization: Bearer your-api-key

    ```


    ## Base URL


    `https://api.interchange.io/api/v2/storefront`


    ## For AI Agents


    AI agents can use the MCP endpoint at `/mcp/v2/storefront` with three tools:

    - `initialize`: Start an MCP session

    - `api_call`: Make REST API calls

    - `ask_about_capability`: Learn about API features
servers:
  - url: https://api.interchange.io/api/v2/storefront
    description: Production server
security: []
tags:
  - name: Account
    description: Account management, service tokens, and preferences
  - name: Asks
    description: >-
      What you are waiting on Scope3 for — support, product, and supply asks in
      one list
  - name: Storefront
    description: Manage storefront and inventory sources
  - name: Storefront Agents
    description: List and manage registered sales, signals, and outcomes agents
  - name: Storefront Activity
    description: Audit log of configuration and inventory changes on the storefront
  - name: Storefront Billing
    description: Payout bank details and billing configuration for Seller Accounts
  - name: AI Usage
    description: Seller Account AI token usage visibility by model
  - name: MCP
    description: Model Context Protocol endpoints
paths:
  /esa/{esaId}/creative-formats:
    get:
      tags:
        - Storefront Ad Server Catalog
      summary: List creative formats for an ad server source
      description: >-
        List the creative formats available on the ad server source's upstream
        tenant, optionally filtered by name or asset type. The response body is
        the upstream adapter's payload and varies by ad server.
      operationId: listEsaCreativeFormats
      parameters:
        - in: query
          name: q
          schema:
            description: Format name search.
            type: string
          description: Format name search.
        - in: query
          name: assetType
          schema:
            description: >-
              Filter by asset type. Repeat the parameter for multiple types; a
              single value also parses.
            type: array
            items:
              type: string
          description: >-
            Filter by asset type. Repeat the parameter for multiple types; a
            single value also parses.
        - in: path
          name: esaId
          schema:
            type: integer
            minimum: 0
            exclusiveMinimum: true
            maximum: 9007199254740991
            description: >-
              Ad server source connection id. The wire field remains `esaId` for
              API compatibility.
            example: 123
          required: true
          description: >-
            Ad server source connection id. The wire field remains `esaId` for
            API compatibility.
      responses:
        '200':
          description: List creative formats for an ad server source
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: No ad server source with this id, or the source is deactivated.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
      security:
        - bearerAuth: []
components:
  schemas:
    ErrorResponse:
      type: object
      properties:
        data:
          type: string
          nullable: true
          enum:
            - null
        error:
          $ref: '#/components/schemas/ApiError'
      required:
        - data
        - error
      additionalProperties: false
      description: Standard error response
    ApiError:
      type: object
      properties:
        code:
          type: string
          description: Machine-readable error code
        message:
          type: string
          description: Human-readable error message
        field:
          description: Field path associated with the error
          type: string
        details:
          description: Additional error context
          type: object
          additionalProperties: {}
      required:
        - code
        - message
      additionalProperties: false
      description: Structured error object
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: API key or access token

````