> ## 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. # Get storefront capabilities > Inspect source-level capability diagnostics for a buyer-visible storefront. ## OpenAPI ````yaml /v2/buyer-api-v2.yaml get /storefronts/{storefrontId}/capabilities 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: Account description: Account management, service tokens, and preferences - 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: Planning Briefs description: >- Share prospective briefs with publishers and collect their fit/quote/clarify/decline/book responses (gated by the demand-supply-signals flag). - 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: /storefronts/{storefrontId}/capabilities: get: tags: - Storefronts summary: Get storefront capabilities description: >- Inspect source-level capability diagnostics for a buyer-visible storefront. operationId: getStorefrontCapabilities parameters: - in: path name: storefrontId schema: description: Storefront ID type: integer maximum: 9007199254740991 minimum: 1 required: true description: Storefront ID responses: '200': description: Get storefront capabilities content: application/json: schema: $ref: '#/components/schemas/BuyerStorefrontCapabilitiesResponse' '400': description: Bad request content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '401': description: Unauthorized 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: BuyerStorefrontCapabilitiesResponse: description: Source-level capability diagnostics for a buyer storefront type: object properties: storefrontId: description: Storefront ID that was inspected type: integer maximum: 9007199254740991 minimum: 1 agents: description: >- Active source rows behind the storefront. Field name retained for response compatibility. type: array items: $ref: '#/components/schemas/BuyerStorefrontCapabilitySource' required: - storefrontId - agents additionalProperties: false ErrorResponse: description: Standard error response type: object properties: data: type: string nullable: true enum: - null error: $ref: '#/components/schemas/ApiError' required: - data - error additionalProperties: false BuyerStorefrontCapabilitySource: description: Source-level storefront capability diagnostic row type: object properties: sourceId: description: Inventory source identifier within the storefront type: string sourceName: description: Inventory source display name nullable: true type: string executionType: description: Source execution type type: string agentName: description: External sales-agent name when one exists nullable: true type: string requiresCredentials: description: >- Whether buyer-provided credentials are required for this external AdCP source. Null when not applicable or unavailable. nullable: true type: boolean probeable: description: >- Whether this row is an external AdCP sales agent that the capability diagnostic can check type: boolean probeStatus: description: >- Capability availability status. `reachable` means capabilities are available (including in-process synthesized capabilities for adapter and ESA storefronts), possibly from cache. type: string enum: - reachable - unreachable - not_applicable - unavailable message: description: Explanation when the row is not probeable nullable: true type: string capabilities: description: >- Capability summary for external AdCP sources; null for managed sources or failed capability lookups nullable: true allOf: - $ref: '#/components/schemas/BuyerStorefrontCapabilityDetails' required: - sourceId - sourceName - executionType - agentName - requiresCredentials - probeable - probeStatus - message - capabilities additionalProperties: false ApiError: description: Structured error object type: object properties: code: description: Machine-readable error code type: string message: description: Human-readable error message type: string field: description: Field path associated with the error type: string details: description: Additional error context type: object additionalProperties: {} required: - code - message additionalProperties: false BuyerStorefrontCapabilityDetails: description: Capability summary for an external AdCP storefront source type: object properties: version: description: AdCP capability version type: string tools: description: Tool names reported by the external AdCP source type: array items: type: string protocols: description: Protocols advertised by the external AdCP source type: array items: type: string features: description: Feature flags advertised by the external AdCP source type: object additionalProperties: {} accountResolution: description: How the source resolves buyer accounts; null when not advertised. nullable: true type: string enum: - explicit_account_id - implicit_from_sync requireOperatorAuth: description: >- Capability-payload copy of whether buyer-provided credentials are required. type: boolean defaultBilling: description: Default billing mode advertised by the source nullable: true type: string supportedBillings: description: Billing modes supported by the source type: array items: type: string reportingDeliveryMethods: nullable: true type: array items: type: string enum: - webhook - offline sandboxSupported: description: Whether the source advertises sandbox support type: boolean synthetic: description: >- Whether capabilities were synthesized rather than returned directly by the source type: boolean required: - version - tools - protocols - features - accountResolution - requireOperatorAuth - defaultBilling - supportedBillings - reportingDeliveryMethods - sandboxSupported - synthetic additionalProperties: false securitySchemes: bearerAuth: type: http scheme: bearer description: API key or access token ````