> ## 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. # Discover signals > Query signal agents via AdCP to discover available signals. Does not persist results. ## OpenAPI ````yaml /v2/storefront-api-v2.yaml post /signals/discover 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: 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 storefronts - name: AI Usage description: Storefront AI token usage visibility by model - name: MCP description: Model Context Protocol endpoints paths: /signals/discover: post: tags: - Signals summary: Discover signals description: >- Query signal agents via AdCP to discover available signals. Does not persist results. operationId: discoverSignals requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/DiscoverSignalsInput' responses: '200': description: Discover signals content: application/json: schema: type: object properties: agentResults: type: array items: type: object properties: agentId: type: string agentName: type: string success: type: boolean signalCount: type: integer minimum: -9007199254740991 maximum: 9007199254740991 error: type: string required: - agentId - agentName - success - signalCount additionalProperties: false signals: type: array items: type: object properties: signalId: type: string name: type: string description: type: string dataProvider: type: string coveragePercentage: nullable: true type: number access: type: array items: type: object properties: advertiserId: nullable: true type: integer format: int64 visibility: type: string price: nullable: true anyOf: - type: object properties: pricing_option_id: type: string pricing_model: type: string enum: - cpm currency: type: string pattern: ^[A-Z]{3}$ fixed_price: type: number minimum: 0 floor_price: type: number minimum: 0 max_bid: type: boolean price_guidance: type: object properties: p25: type: number minimum: 0 p50: type: number minimum: 0 p75: type: number minimum: 0 p90: type: number minimum: 0 additionalProperties: {} min_spend_per_package: type: number minimum: 0 price_breakdown: type: object properties: list_price: type: number adjustments: type: array items: type: object additionalProperties: {} required: - list_price - adjustments additionalProperties: {} eligible_adjustments: type: array items: anyOf: - type: string enum: - fee - type: string enum: - discount - type: string enum: - commission - type: string enum: - settlement required: - pricing_option_id - pricing_model - currency additionalProperties: {} - type: object properties: pricing_option_id: type: string pricing_model: type: string enum: - vcpm currency: type: string pattern: ^[A-Z]{3}$ fixed_price: type: number minimum: 0 floor_price: type: number minimum: 0 max_bid: type: boolean price_guidance: type: object properties: p25: type: number minimum: 0 p50: type: number minimum: 0 p75: type: number minimum: 0 p90: type: number minimum: 0 additionalProperties: {} min_spend_per_package: type: number minimum: 0 price_breakdown: type: object properties: list_price: type: number adjustments: type: array items: type: object additionalProperties: {} required: - list_price - adjustments additionalProperties: {} eligible_adjustments: type: array items: anyOf: - type: string enum: - fee - type: string enum: - discount - type: string enum: - commission - type: string enum: - settlement required: - pricing_option_id - pricing_model - currency additionalProperties: {} - type: object properties: pricing_option_id: type: string pricing_model: type: string enum: - cpc currency: type: string pattern: ^[A-Z]{3}$ fixed_price: type: number minimum: 0 floor_price: type: number minimum: 0 max_bid: type: boolean price_guidance: type: object properties: p25: type: number minimum: 0 p50: type: number minimum: 0 p75: type: number minimum: 0 p90: type: number minimum: 0 additionalProperties: {} min_spend_per_package: type: number minimum: 0 price_breakdown: type: object properties: list_price: type: number adjustments: type: array items: type: object additionalProperties: {} required: - list_price - adjustments additionalProperties: {} eligible_adjustments: type: array items: anyOf: - type: string enum: - fee - type: string enum: - discount - type: string enum: - commission - type: string enum: - settlement required: - pricing_option_id - pricing_model - currency additionalProperties: {} - type: object properties: pricing_option_id: type: string pricing_model: type: string enum: - cpcv currency: type: string pattern: ^[A-Z]{3}$ fixed_price: type: number minimum: 0 floor_price: type: number minimum: 0 max_bid: type: boolean price_guidance: type: object properties: p25: type: number minimum: 0 p50: type: number minimum: 0 p75: type: number minimum: 0 p90: type: number minimum: 0 additionalProperties: {} min_spend_per_package: type: number minimum: 0 price_breakdown: type: object properties: list_price: type: number adjustments: type: array items: type: object additionalProperties: {} required: - list_price - adjustments additionalProperties: {} eligible_adjustments: type: array items: anyOf: - type: string enum: - fee - type: string enum: - discount - type: string enum: - commission - type: string enum: - settlement required: - pricing_option_id - pricing_model - currency additionalProperties: {} - type: object properties: pricing_option_id: type: string pricing_model: type: string enum: - cpv currency: type: string pattern: ^[A-Z]{3}$ fixed_price: type: number minimum: 0 floor_price: type: number minimum: 0 max_bid: type: boolean price_guidance: type: object properties: p25: type: number minimum: 0 p50: type: number minimum: 0 p75: type: number minimum: 0 p90: type: number minimum: 0 additionalProperties: {} parameters: type: object properties: view_threshold: anyOf: - type: number - type: object properties: duration_seconds: type: number minimum: 1 required: - duration_seconds additionalProperties: {} required: - view_threshold additionalProperties: {} min_spend_per_package: type: number minimum: 0 price_breakdown: type: object properties: list_price: type: number adjustments: type: array items: type: object additionalProperties: {} required: - list_price - adjustments additionalProperties: {} eligible_adjustments: type: array items: anyOf: - type: string enum: - fee - type: string enum: - discount - type: string enum: - commission - type: string enum: - settlement required: - pricing_option_id - pricing_model - currency - parameters additionalProperties: {} - type: object properties: pricing_option_id: type: string pricing_model: type: string enum: - cpp currency: type: string pattern: ^[A-Z]{3}$ fixed_price: type: number minimum: 0 floor_price: type: number minimum: 0 price_guidance: type: object properties: p25: type: number minimum: 0 p50: type: number minimum: 0 p75: type: number minimum: 0 p90: type: number minimum: 0 additionalProperties: {} parameters: type: object properties: demographic_system: anyOf: - type: string enum: - nielsen - type: string enum: - barb - type: string enum: - agf - type: string enum: - oztam - type: string enum: - mediametrie - type: string enum: - custom demographic: type: string min_points: type: number minimum: 0 required: - demographic additionalProperties: {} min_spend_per_package: type: number minimum: 0 price_breakdown: type: object properties: list_price: type: number adjustments: type: array items: type: object additionalProperties: {} required: - list_price - adjustments additionalProperties: {} eligible_adjustments: type: array items: anyOf: - type: string enum: - fee - type: string enum: - discount - type: string enum: - commission - type: string enum: - settlement required: - pricing_option_id - pricing_model - currency - parameters additionalProperties: {} - type: object properties: pricing_option_id: type: string pricing_model: type: string enum: - cpa event_type: anyOf: - type: string enum: - page_view - type: string enum: - view_content - type: string enum: - select_content - type: string enum: - select_item - type: string enum: - search - type: string enum: - share - type: string enum: - add_to_cart - type: string enum: - remove_from_cart - type: string enum: - viewed_cart - type: string enum: - add_to_wishlist - type: string enum: - initiate_checkout - type: string enum: - add_payment_info - type: string enum: - purchase - type: string enum: - refund - type: string enum: - lead - type: string enum: - qualify_lead - type: string enum: - close_convert_lead - type: string enum: - disqualify_lead - type: string enum: - complete_registration - type: string enum: - subscribe - type: string enum: - follow - type: string enum: - content_view - type: string enum: - watch_milestone - type: string enum: - start_trial - type: string enum: - app_install - type: string enum: - app_launch - type: string enum: - contact - type: string enum: - schedule - type: string enum: - donate - type: string enum: - submit_application - type: string enum: - custom custom_event_name: type: string event_source_id: type: string currency: type: string pattern: ^[A-Z]{3}$ fixed_price: type: number min_spend_per_package: type: number minimum: 0 price_breakdown: type: object properties: list_price: type: number adjustments: type: array items: type: object additionalProperties: {} required: - list_price - adjustments additionalProperties: {} eligible_adjustments: type: array items: anyOf: - type: string enum: - fee - type: string enum: - discount - type: string enum: - commission - type: string enum: - settlement required: - pricing_option_id - pricing_model - event_type - currency - fixed_price additionalProperties: {} - type: object properties: pricing_option_id: type: string pricing_model: type: string enum: - flat_rate currency: type: string pattern: ^[A-Z]{3}$ fixed_price: type: number minimum: 0 floor_price: type: number minimum: 0 price_guidance: type: object properties: p25: type: number minimum: 0 p50: type: number minimum: 0 p75: type: number minimum: 0 p90: type: number minimum: 0 additionalProperties: {} parameters: type: object properties: type: type: string enum: - dooh sov_percentage: type: number minimum: 0 maximum: 100 loop_duration_seconds: type: number minimum: 1 min_plays_per_hour: type: number minimum: 1 venue_package: type: string duration_hours: type: number minimum: 0 daypart: type: string estimated_impressions: type: number minimum: 0 required: - type additionalProperties: {} min_spend_per_package: type: number minimum: 0 price_breakdown: type: object properties: list_price: type: number adjustments: type: array items: type: object additionalProperties: {} required: - list_price - adjustments additionalProperties: {} eligible_adjustments: type: array items: anyOf: - type: string enum: - fee - type: string enum: - discount - type: string enum: - commission - type: string enum: - settlement required: - pricing_option_id - pricing_model - currency additionalProperties: {} - type: object properties: pricing_option_id: type: string pricing_model: type: string enum: - time currency: type: string pattern: ^[A-Z]{3}$ fixed_price: type: number minimum: 0 floor_price: type: number minimum: 0 price_guidance: type: object properties: p25: type: number minimum: 0 p50: type: number minimum: 0 p75: type: number minimum: 0 p90: type: number minimum: 0 additionalProperties: {} parameters: type: object properties: time_unit: anyOf: - type: string enum: - hour - type: string enum: - day - type: string enum: - week - type: string enum: - month min_duration: type: number minimum: 1 max_duration: type: number minimum: 1 required: - time_unit additionalProperties: {} min_spend_per_package: type: number minimum: 0 price_breakdown: type: object properties: list_price: type: number adjustments: type: array items: type: object additionalProperties: {} required: - list_price - adjustments additionalProperties: {} eligible_adjustments: type: array items: anyOf: - type: string enum: - fee - type: string enum: - discount - type: string enum: - commission - type: string enum: - settlement required: - pricing_option_id - pricing_model - currency - parameters additionalProperties: {} required: - advertiserId - visibility - price additionalProperties: false regions: nullable: true type: array items: type: string enum: - NORAM - LATAM - EMEA - APAC - ANZ - GLOBAL keyType: nullable: true type: array items: type: string enum: - country - region - metro - topic - eidr - gracenote - isrc - gtin - rss_guid - isbn - url - url_hash - custom - maid - rampid - rampid_derived - hashed_email - hashed_phone - id5 - uid2 - euid - pairid metadata: nullable: true type: object additionalProperties: {} required: - signalId - name - description - dataProvider - coveragePercentage - access - regions - keyType - metadata additionalProperties: false total: type: integer minimum: 0 maximum: 9007199254740991 required: - agentResults - signals - total additionalProperties: false '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: DiscoverSignalsInput: type: object properties: agentId: type: string maxLength: 255 signalSpec: type: string maxLength: 5000 signalIds: maxItems: 100 type: array items: type: string maxLength: 255 limit: default: 20 type: integer maximum: 100 minimum: 1 offset: default: 0 type: integer minimum: 0 maximum: 9007199254740991 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 ````