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

# List one page of async child Runs

> Returns a bounded page of direct child Runs for one authored async launch key. Pass nextCursor as cursor to retrieve the next page.

Authentication: workspace API key in `Authorization: Bearer <key>`.

URL-encode path values, including `/` characters inside Play references and run IDs.

## Errors

| Status | Meaning |
| - | - |
| 400 | The request conflicts with current state or a retained request identity. |
| 401 | The request conflicts with current state or a retained request identity. |
| 500 | The request conflicts with current state or a retained request identity. |


## OpenAPI

````yaml openapi.json GET /api/v2/runs/{runId}/children
openapi: 3.1.1
info:
  title: Deepline API
  version: v2
  description: >-
    Discover typed GTM tools and callable Plays, then execute a tool or start
    and inspect a durable Deepline Play run. Use the MCP endpoint when your
    client supports Model Context Protocol.
  contact:
    name: Deepline support
    email: team@deepline.com
    url: https://deepline.com/contact
servers:
  - url: https://code.deepline.com
    description: Deepline production runtime API
security: []
tags:
  - name: Health
    description: Availability checks.
  - name: Billing
    description: Safe recovery of existing purchase intent.
  - name: Tools
    description: Discover and execute typed provider tools.
  - name: Plays
    description: Discover, start, and inspect durable Play runs.
externalDocs:
  description: API reference
  url: https://deepline.com/docs/api-reference
paths:
  /api/v2/runs/{runId}/children:
    get:
      tags:
        - Plays
      summary: List one page of async child Runs
      description: >-
        Returns a bounded page of direct child Runs for one authored async
        launch key. Pass nextCursor as cursor to retrieve the next page.
      operationId: listRunChildren
      parameters:
        - name: runId
          in: path
          required: true
          description: The runId returned by the related Deepline API call.
          schema:
            type: string
            minLength: 1
        - name: launchKey
          in: query
          required: true
          description: Authored ctx.runPlayAsync launch key.
          schema:
            type: string
        - name: cursor
          in: query
          required: false
          description: Opaque cursor returned by the previous page.
          schema:
            type: string
        - name: limit
          in: query
          required: false
          description: Page size from 1 through 50; defaults to 50.
          schema:
            type: integer
            minimum: 1
            maximum: 50
            default: 50
      responses:
        '200':
          description: A successful Runtime API response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RunChildrenPage'
        '400':
          description: >-
            The request conflicts with current state or a retained request
            identity.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                error: Unauthorized
        '401':
          description: >-
            The request conflicts with current state or a retained request
            identity.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                error: Unauthorized
        '500':
          description: >-
            The request conflicts with current state or a retained request
            identity.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
              example:
                error: Unauthorized
      security:
        - bearerAuth: []
components:
  schemas:
    RunChildrenPage:
      type: object
      required:
        - children
        - nextCursor
        - hasMore
      properties:
        children:
          type: array
          items:
            type: object
            required:
              - runId
              - status
            properties:
              runId:
                type: string
              playName:
                type:
                  - string
                  - 'null'
              launchKey:
                type:
                  - string
                  - 'null'
              status:
                type: string
            additionalProperties: true
        nextCursor:
          type:
            - string
            - 'null'
        hasMore:
          type: boolean
    ErrorResponse:
      type: object
      required:
        - error
      properties:
        error:
          oneOf:
            - type: string
              description: Route-specific error message.
            - type: object
              properties:
                code:
                  type: string
                message:
                  type: string
                resolution:
                  type: string
              additionalProperties: true
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: Deepline workspace API key
      description: >-
        Create a workspace API key in the Deepline dashboard before calling
        authenticated endpoints.

````

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