> ## 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 event summary > Get hourly-aggregated event counts for an advertiser. Returns event counts broken down by type and hour. ## OpenAPI ````yaml /v2/buyer-api-v2.yaml get /advertisers/{advertiserId}/events/summary 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: /advertisers/{advertiserId}/events/summary: get: tags: - Reporting summary: Get event summary description: >- Get hourly-aggregated event counts for an advertiser. Returns event counts broken down by type and hour. operationId: getEventSummary parameters: - in: query name: eventType schema: description: Filter by event type. When omitted, returns all event types. example: impression allOf: - $ref: '#/components/schemas/EventSummaryType' description: Filter by event type. When omitted, returns all event types. - in: query name: startHour schema: description: >- Start of the query range (inclusive). Must be hour-aligned. Defaults to the start of the last completed UTC hour. example: '2026-03-27T14:00:00Z' type: string pattern: ^\d{4}-\d{2}-\d{2}T\d{2}:00:00(Z|[+-]\d{2}:\d{2})$ description: >- Start of the query range (inclusive). Must be hour-aligned. Defaults to the start of the last completed UTC hour. - in: query name: endHour schema: description: >- End of the query range (exclusive). Must be hour-aligned. Defaults to the end of the last completed UTC hour. example: '2026-03-27T15:00:00Z' type: string pattern: ^\d{4}-\d{2}-\d{2}T\d{2}:00:00(Z|[+-]\d{2}:\d{2})$ description: >- End of the query range (exclusive). Must be hour-aligned. Defaults to the end of the last completed UTC hour. - in: path name: advertiserId schema: description: Unique identifier for the advertiser example: '12345' type: string minLength: 1 required: true description: Unique identifier for the advertiser responses: '200': description: Get event summary content: application/json: schema: $ref: '#/components/schemas/EventSummaryResponse' '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: $ref: '#/components/schemas/ErrorResponse' security: - bearerAuth: [] components: schemas: EventSummaryType: description: >- Type of event to filter by: conversion, click, impression, measurement, or mmp type: string enum: - conversion - click - impression - measurement - mmp EventSummaryResponse: description: Response containing hourly-aggregated event counts for an advertiser type: object properties: periodStart: description: Start of the queried period (inclusive, ISO 8601) example: '2026-03-27T14:00:00.000Z' type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ periodEnd: description: End of the queried period (exclusive, ISO 8601) example: '2026-03-27T15:00:00.000Z' 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))$ entries: description: Aggregated event entries within the queried period type: array items: $ref: '#/components/schemas/EventSummaryEntry' totalEventCount: description: Sum of all event counts across all entries example: 5000 type: integer minimum: 0 maximum: 9007199254740991 required: - periodStart - periodEnd - entries - totalEventCount additionalProperties: false ErrorResponse: description: Standard error response type: object properties: data: type: string nullable: true enum: - null error: $ref: '#/components/schemas/ApiError' required: - data - error additionalProperties: false EventSummaryEntry: description: A single hourly aggregation entry type: object properties: eventHour: description: Start of the aggregated hour window (ISO 8601) example: '2026-03-27T14:00:00.000Z' type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ eventType: description: Type of event allOf: - $ref: '#/components/schemas/EventSummaryType' eventCount: description: Number of events in this hour for this type example: 1500 type: integer minimum: 0 maximum: 9007199254740991 required: - eventHour - eventType - eventCount 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 ````