> ## Documentation Index
> Fetch the complete documentation index at: https://docs.prefect.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Read Work Queue Concurrency Status

> Read concurrency status for a work queue, including paginated flow run
summaries. active_slots always reflects the total count.



## OpenAPI

````yaml post /work_queues/{id}/concurrency_status
openapi: 3.1.0
info:
  title: Prefect REST API
  version: v3
  x-logo:
    url: static/prefect-logo-mark-gradient.png
servers: []
security: []
paths:
  /work_queues/{id}/concurrency_status:
    post:
      tags:
        - Work Queues
      summary: Read Work Queue Concurrency Status
      description: |-
        Read concurrency status for a work queue, including paginated flow run
        summaries. active_slots always reflects the total count.
      operationId: >-
        read_work_queue_concurrency_status_work_queues__id__concurrency_status_post
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
            format: uuid
            description: The work queue id
            title: Id
          description: The work queue id
        - name: x-prefect-api-version
          in: header
          required: false
          schema:
            type: string
            title: X-Prefect-Api-Version
      requestBody:
        content:
          application/json:
            schema:
              $ref: >-
                #/components/schemas/Body_read_work_queue_concurrency_status_work_queues__id__concurrency_status_post
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WorkQueueConcurrencyStatus'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    Body_read_work_queue_concurrency_status_work_queues__id__concurrency_status_post:
      properties:
        page:
          type: integer
          minimum: 1
          title: Page
          default: 1
        limit:
          type: integer
          title: Limit
          description: Defaults to PREFECT_API_DEFAULT_LIMIT if not provided.
      type: object
      title: >-
        Body_read_work_queue_concurrency_status_work_queues__id__concurrency_status_post
    WorkQueueConcurrencyStatus:
      properties:
        active_slots:
          type: integer
          title: Active Slots
        concurrency_limit:
          anyOf:
            - type: integer
            - type: 'null'
          title: Concurrency Limit
        flow_runs:
          items:
            $ref: '#/components/schemas/FlowRunSlotSummary'
          type: array
          title: Flow Runs
        count:
          type: integer
          title: Count
          description: Total number of slot-holding flow runs.
        limit:
          type: integer
          title: Limit
          description: Page size.
        pages:
          type: integer
          title: Pages
          description: Total number of pages.
        page:
          type: integer
          title: Page
          description: Current page number (1-indexed).
      type: object
      required:
        - active_slots
        - count
        - limit
        - pages
        - page
      title: WorkQueueConcurrencyStatus
      description: Paginated queue-level concurrency status with flow run details.
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    FlowRunSlotSummary:
      properties:
        id:
          type: string
          format: uuid
          title: Id
        name:
          type: string
          title: Name
        state_type:
          anyOf:
            - $ref: '#/components/schemas/StateType'
            - type: 'null'
        state_name:
          anyOf:
            - type: string
            - type: 'null'
          title: State Name
        start_time:
          anyOf:
            - type: string
              format: date-time
            - type: 'null'
          title: Start Time
        state_timestamp:
          anyOf:
            - type: string
              format: date-time
            - type: 'null'
          title: State Timestamp
        time_in_current_state:
          anyOf:
            - type: number
            - type: 'null'
          title: Time In Current State
      type: object
      required:
        - id
        - name
      title: FlowRunSlotSummary
      description: Summary of a flow run occupying a concurrency slot.
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
    StateType:
      type: string
      enum:
        - SCHEDULED
        - PENDING
        - RUNNING
        - COMPLETED
        - FAILED
        - CANCELLED
        - CRASHED
        - PAUSED
        - CANCELLING
      title: StateType
      description: Enumeration of state types.

````