> ## 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 task status > Get the current status of an async task. AdCP polling fallback for when webhooks are unavailable. ## OpenAPI ````yaml /v2/buyer-api-v2.yaml get /tasks/{taskId} 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: /tasks/{taskId}: get: tags: - Tasks summary: Get task status description: >- Get the current status of an async task. AdCP polling fallback for when webhooks are unavailable. operationId: getTask parameters: - in: path name: taskId schema: 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)$ required: true responses: '200': description: Get task status content: application/json: schema: $ref: '#/components/schemas/TaskResponse' '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: TaskResponse: description: Response containing a single task type: object properties: task: $ref: '#/components/schemas/TaskOutput' required: - task additionalProperties: false ErrorResponse: description: Standard error response type: object properties: data: type: string nullable: true enum: - null error: $ref: '#/components/schemas/ApiError' required: - data - error additionalProperties: false TaskOutput: description: Async task resource representation type: object properties: taskId: description: Unique task identifier example: 550e8400-e29b-41d4-a716-446655440000 type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ taskType: description: Type of async operation example: audience_sync type: string enum: - audience_sync - media_buy_create - creative_sync status: description: Current task status (AdCP states) example: submitted type: string enum: - submitted - working - completed - failed - input-required resourceType: description: Type of resource this task operates on example: audience nullable: true type: string resourceId: description: Identifier of the resulting resource (set on completion) example: aud_12345 nullable: true type: string error: description: AdCP-compatible error object when status is "failed" nullable: true allOf: - $ref: '#/components/schemas/TaskError' response: description: Original response payload from the downstream system nullable: true type: object additionalProperties: {} metadata: description: Operation-specific context nullable: true type: object additionalProperties: {} retryAfterSeconds: description: >- Suggested polling interval in seconds. Set based on task type to guide how frequently callers should poll. example: 30 nullable: true type: number createdAt: description: When the task was created (ISO 8601) example: '2026-01-15T10:30:00.000Z' type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ updatedAt: description: When the task was last updated (ISO 8601) example: '2026-01-20T14:45:00.000Z' 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))$ required: - taskId - taskType - status - resourceType - resourceId - error - response - metadata - retryAfterSeconds - createdAt - updatedAt 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 TaskError: description: AdCP-compatible error object type: object properties: code: description: Error code for programmatic handling example: VALIDATION_ERROR type: string message: description: Human-readable error message example: Invalid budget value type: string field: description: Field path associated with the error example: packages[0].targeting type: string suggestion: description: Suggested fix for the error type: string retryAfter: description: Seconds to wait before retrying the operation type: number details: description: Additional task-specific error details type: object additionalProperties: {} recovery: description: >- Agent recovery classification: transient (retry), correctable (fix and resend), terminal (requires human action) type: string enum: - transient - correctable - terminal required: - code - message additionalProperties: false securitySchemes: bearerAuth: type: http scheme: bearer description: API key or access token ````