> ## 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. # Run an inventory source discovery test > Call the selected external sales agent's get_products operation with a read-only diagnostic brief. This test creates no media buy, spends nothing, and records a durable result with available trace identifiers. ## OpenAPI ````yaml /v2/storefront-api-v2.yaml post /inventory-sources/{sourceId}/tests/discovery openapi: 3.0.0 info: title: Scope3 Storefront API version: 2.0.0 description: |- REST API for partners to manage storefronts, 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: 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 storefronts - name: AI Usage description: Storefront AI token usage visibility by model - name: MCP description: Model Context Protocol endpoints paths: /inventory-sources/{sourceId}/tests/discovery: post: tags: - Storefront summary: Run an inventory source discovery test description: >- Call the selected external sales agent's get_products operation with a read-only diagnostic brief. This test creates no media buy, spends nothing, and records a durable result with available trace identifiers. operationId: runInventorySourceDiscoveryTest parameters: - in: path name: sourceId schema: description: Inventory source ID type: string minLength: 1 required: true description: Inventory source ID requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/InventorySourceDiscoveryTestBody' responses: '200': description: Run an inventory source discovery test content: application/json: schema: $ref: '#/components/schemas/InventorySourceDiscoveryTestResponse' '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: $ref: '#/components/schemas/ErrorResponse' security: - bearerAuth: [] components: schemas: InventorySourceDiscoveryTestBody: description: >- Input for a read-only, no-spend get_products diagnostic against one external sales-agent source. type: object properties: brief: description: >- Optional bounded buyer brief sent directly to this source with get_products. A deterministic diagnostic brief is used when omitted. type: string minLength: 1 maxLength: 2000 additionalProperties: false InventorySourceDiscoveryTestResponse: description: >- Normalized result of a direct, read-only get_products diagnostic against one third-party sales-agent source. type: object properties: source: type: object properties: sourceId: type: string name: type: string required: - sourceId - name additionalProperties: false operation: type: string enum: - get_products outcome: type: string enum: - passed - empty - failed - not_reached message: type: string productCount: type: integer minimum: 0 maximum: 9007199254740991 products: description: >- Representative matching products (id and name) from the source, capped at 20 items. products.length is at most productCount: items the source returned without a resolvable id are still counted in productCount but omitted from this list. maxItems: 20 type: array items: type: object properties: productId: type: string name: nullable: true type: string required: - productId - name additionalProperties: false checkedAt: type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ durationMs: nullable: true type: integer minimum: 0 maximum: 9007199254740991 trace: nullable: true type: object properties: operationId: nullable: true type: string taskId: nullable: true type: string contextId: nullable: true type: string debugId: nullable: true type: string requestId: nullable: true type: string traceparent: nullable: true type: string required: - operationId - taskId - contextId - debugId - requestId - traceparent additionalProperties: false steps: type: array items: type: object properties: key: type: string label: type: string status: type: string enum: - completed - failed - not_checked operation: nullable: true type: string httpStatus: nullable: true type: integer minimum: -9007199254740991 maximum: 9007199254740991 endpoint: nullable: true type: string message: nullable: true type: string required: - key - label - status - operation - httpStatus - endpoint - message additionalProperties: false run: nullable: true type: object properties: runUid: 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)$ status: type: string enum: - passed - failed createdAt: type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ required: - runUid - status - createdAt additionalProperties: false required: - source - operation - outcome - message - productCount - products - checkedAt - durationMs - trace - steps - run 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 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 securitySchemes: bearerAuth: type: http scheme: bearer description: API key or access token ````