> ## Documentation Index > Fetch the complete documentation index at: https://docs.interchange.io/llms.txt > Use this file to discover all available pages before exploring further. # Adopt a managed audio source into a creative > Adopt a promoted managed audio source into an audio-hosted creative manifest. The bounded hosted HTTPS URL is issued server-side, so the caller names a source rather than a URL. The operation requires both the managed-audio account capability and bounded delivery-origin gate to be explicitly enabled; this change enables neither. Optionally records a non-delivery campaign association; it does not assign a media buy or call a destination. ## OpenAPI ````yaml /v2/buyer-api-v2.yaml post /creatives/adopt-managed-audio-source openapi: 3.0.0 info: title: Scope3 Buyer API version: 2.0.0 description: |- REST API for advertisers to manage advertisers, campaigns, and reporting. ## Authentication All endpoints require a Bearer token in the Authorization header: ``` Authorization: Bearer your-api-key ``` ## Base URL `https://api.interchange.io/api/v2/buyer` ## For AI Agents AI agents can use the MCP endpoint at `/mcp/v2/buyer` 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/buyer description: Production server security: [] tags: - name: Signup description: Request reviewed access to Interchange - 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: Advertisers description: Manage advertisers - name: Product Discovery description: Discover and select products - name: Campaigns description: Manage advertising campaigns - name: Creatives description: Build, manage, and sync campaign creatives via AdCP Creative Protocol - name: Reporting description: Access performance metrics - name: Event Sources description: >- Manage event source configurations and log conversion/marketing events for attribution - name: Property Lists description: Validate property lists against AAO registry - name: Sales Agents description: View and connect sales agents - name: Measurement description: Measurement sources, records, context, and freshness - name: Syndication description: Syndicate resources to ADCP agents - name: Tasks description: Track async operation status - name: Buyer Billing description: >- Consolidated invoicing for buyers — invoices and pending invoice items issued by Scope3 across the buyer customer. - name: MCP description: Model Context Protocol endpoints for AI agents paths: /creatives/adopt-managed-audio-source: post: tags: - Creatives summary: Adopt a managed audio source into a creative description: >- Adopt a promoted managed audio source into an audio-hosted creative manifest. The bounded hosted HTTPS URL is issued server-side, so the caller names a source rather than a URL. The operation requires both the managed-audio account capability and bounded delivery-origin gate to be explicitly enabled; this change enables neither. Optionally records a non-delivery campaign association; it does not assign a media buy or call a destination. operationId: adoptManagedAudioSource requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/AdoptManagedAudioSourceBody' responses: '201': description: Adopt a managed audio source into a creative content: application/json: schema: $ref: '#/components/schemas/AdoptManagedAudioSourceResponse' '400': description: Bad request content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '401': description: Unauthorized content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '403': description: >- The credential lacks `interchange:write`, or the session cannot be attributed to a durable actor (a simulated staff session is refused outright). content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '404': description: >- No promoted audio source with this `source_uid` is owned by the given buyer, advertiser, and storefront. An unowned source and a nonexistent one are deliberately indistinguishable. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '409': description: >- A creative already holds the requested name, the source is already adopted under a different name, the source's delivery was revoked or deletion-requested, an earlier adoption never finalized, the adopted creative's audio asset was replaced or removed, or the source-identity state is still settling. `details.reason` distinguishes them: `name_taken`, `name_creation_in_progress`, `name_creation_abandoned`, `adoption_in_progress`, `adoption_abandoned`, `adoption_asset_unavailable`, `adoption_name_mismatch`, `source_delivery_revoked`, `source_deletion_requested`. Branch on `details.reason`, not the message. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '422': description: >- HTTP 422 `CAPABILITY_NOT_SUPPORTED` is returned when the bounded managed-audio delivery origin is disabled or empty, or the managed-audio account capability is disabled. HTTP 422 validation errors also cover a source that is not promoted, an expired retention window, or a campaign that belongs to a different advertiser. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '500': description: Internal server error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '503': description: >- HTTP 503 `SERVICE_UNAVAILABLE` is returned only when the bounded managed-audio delivery origin is non-empty but malformed or otherwise invalid, so no bounded URL can be issued. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' security: - bearerAuth: [] components: schemas: AdoptManagedAudioSourceBody: type: object properties: source_uid: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ description: >- Opaque owner-scoped reference returned when the managed audio source was promoted. advertiser_id: type: string pattern: ^[1-9][0-9]*$ description: >- Advertiser that owns the source and will own the creative. A positive integer within the signed 64-bit range. storefront_id: type: string pattern: ^[1-9][0-9]*$ description: >- Storefront the source was uploaded against. A positive integer within the signed 64-bit range. name: type: string minLength: 1 maxLength: 255 description: Buyer-facing creative name. campaign_id: description: >- Associate the manifest to this campaign in the same call. Audio adoption does not start seller or destination sync. type: string minLength: 1 maxLength: 64 required: - source_uid - advertiser_id - storefront_id - name additionalProperties: false description: >- Create or adopt a Creative Manifest from a promoted managed audio source. AdoptManagedAudioSourceResponse: type: object properties: creative_id: type: string description: Creative manifest that now carries the managed audio. source_uid: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ description: The managed audio source that was adopted. publication_uid: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ description: >- Bounded hosted publication backing the creative asset. Revoking it revokes delivery. delivery_url: type: string description: >- Public HTTPS URL stored as the creative asset. Expires with the source retention window. campaign_id: description: >- A campaign the manifest is associated with. Returned when requested, and on a replay when a membership already exists. This association does not start seller or destination sync. type: string name: type: string description: Buyer-facing creative name. created: type: boolean description: >- True only when this call created the creative. A successful campaign association writes the manifest membership only; it does not start seller or destination sync. required: - creative_id - source_uid - publication_uid - delivery_url - name - created additionalProperties: false description: Result of adopting a managed audio source into a creative. 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 ````