> ## 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.

# List plan suggestion sets

> List plan-level optimization suggestion sets, optionally filtered by plan, campaign, or status.



## OpenAPI

````yaml /v2/buyer-api-v2.yaml get /plan-suggestion-sets
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:
  /plan-suggestion-sets:
    get:
      tags:
        - Optimization Suggestions
      summary: List plan suggestion sets
      description: >-
        List plan-level optimization suggestion sets, optionally filtered by
        plan, campaign, or status.
      operationId: listPlanSuggestionSets
      parameters:
        - in: query
          name: planId
          schema:
            type: string
            pattern: ^[1-9][0-9]{0,14}$
        - in: query
          name: campaignId
          schema:
            type: integer
            minimum: 0
            exclusiveMinimum: true
            maximum: 9007199254740991
        - in: query
          name: status
          schema:
            type: string
            enum:
              - AWAITING_MESSAGES
              - AWAITING_APPROVAL
              - APPROVED
              - APPLYING
              - APPLIED
              - COMPENSATING
              - COMPENSATED
              - NEEDS_RECONCILIATION
              - REJECTED
              - SUPERSEDED
              - EXPIRED
              - APPLY_FAILED
              - PARKED
              - DRY_RUN_RECORDED
        - in: query
          name: limit
          schema:
            default: 20
            type: integer
            minimum: 1
            maximum: 100
        - in: query
          name: offset
          schema:
            default: 0
            type: integer
            minimum: 0
            maximum: 9007199254740991
      responses:
        '200':
          description: List plan suggestion sets
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PlanSuggestionSetList'
        '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:
    PlanSuggestionSetList:
      type: object
      properties:
        planSuggestionSets:
          type: array
          items:
            $ref: '#/components/schemas/PlanSuggestionSetSummary'
        hasMore:
          type: boolean
      required:
        - planSuggestionSets
        - hasMore
      additionalProperties: false
    ErrorResponse:
      type: object
      properties:
        data:
          type: string
          nullable: true
          enum:
            - null
        error:
          $ref: '#/components/schemas/ApiError'
      required:
        - data
        - error
      additionalProperties: false
      description: Standard error response
    PlanSuggestionSetSummary:
      type: object
      properties:
        planSuggestionSetId:
          type: string
        optimizerRunId:
          type: string
        planId:
          type: string
        planName:
          nullable: true
          type: string
        campaignId:
          type: string
        campaignName:
          nullable: true
          type: string
        planRunSequence:
          type: string
          description: >-
            Monotonic per-plan run counter. A pending set is replaced only by a
            complete set with a strictly greater sequence.
        planMediaBuyCount:
          type: number
        budgetCurrency:
          type: string
        applyMode:
          type: string
          enum:
            - AUTO
            - MANUAL
        status:
          type: string
        statusReason:
          nullable: true
          type: string
        netAllocationDelta:
          nullable: true
          description: >-
            Sum of every member media buy's net movement, in minor units.
            Exactly "0" for any set that is eligible to apply.
          type: string
        applyAttemptCount:
          type: number
        compensationAttemptCount:
          type: number
        notifiedAt:
          nullable: true
          description: >-
            When the buyer was notified this set is waiting on them. Null means
            the set is actionable but no notification has landed yet.
          type: string
        decidedAt:
          nullable: true
          type: string
        appliedAt:
          nullable: true
          type: string
        firstMessageAt:
          type: string
        lastMessageAt:
          type: string
      required:
        - planSuggestionSetId
        - optimizerRunId
        - planId
        - planName
        - campaignId
        - campaignName
        - planRunSequence
        - planMediaBuyCount
        - budgetCurrency
        - applyMode
        - status
        - statusReason
        - netAllocationDelta
        - applyAttemptCount
        - compensationAttemptCount
        - notifiedAt
        - decidedAt
        - appliedAt
        - firstMessageAt
        - lastMessageAt
      additionalProperties: false
    ApiError:
      type: object
      properties:
        code:
          type: string
          description: Machine-readable error code
        message:
          type: string
          description: Human-readable error message
        field:
          description: Field path associated with the error
          type: string
        details:
          description: Additional error context
          type: object
          additionalProperties: {}
      required:
        - code
        - message
      additionalProperties: false
      description: Structured error object
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: API key or access token

````