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

# Stop a turn

> Stops a running turn you started. With `cancelToolOnly`, only the tool that is running stops and Connie carries on with the rest of the reply. Stopping a turn that already finished returns its final status.




## OpenAPI

````yaml /openapi/chat.yaml post /brain/cancel
openapi: 3.1.0
info:
  title: Connie Chat API
  version: 1.0.0
  description: >
    Endpoints the Connie web app uses for chat. They authenticate with your
    signed-in browser session — see
    https://docs.connie.ai/api-reference/authentication. These are the app's own
    endpoints and can change when the app changes.
servers:
  - url: https://connie.ai/api
security:
  - sessionCookie: []
tags:
  - name: Chats
    description: List, create, rename, pin and delete chats.
  - name: Turns
    description: Send a message to Connie and stop a running reply.
  - name: Chat messages
    description: Read the saved messages of a chat.
  - name: Artifacts
    description: Workflows, tables, canvases, analytics views and apps attached to a chat.
  - name: Sharing
    description: >-
      Share a chat or a single file or canvas, and read a chat through its
      public link.
paths:
  /brain/cancel:
    post:
      tags:
        - Turns
      summary: Stop a turn
      description: >
        Stops a running turn you started. With `cancelToolOnly`, only the tool
        that is running stops and Connie carries on with the rest of the reply.
        Stopping a turn that already finished returns its final status.
      operationId: stopTurn
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - requestId
              properties:
                requestId:
                  type: string
                  format: uuid
                  description: The `requestId` from Send a message.
                cancelToolOnly:
                  type: boolean
                  default: false
                toolName:
                  type: string
                  description: With `cancelToolOnly`, the tool to stop.
      responses:
        '200':
          description: The stop was recorded.
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                  status:
                    type: string
                    description: >-
                      `cancelled`, `tool_stop_requested`, or the final status of
                      a turn that had already ended.
                  requestId:
                    type: string
                  cancelledRequestIds:
                    type: array
                    items:
                      type: string
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  responses:
    BadRequest:
      description: A required field is missing or invalid.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: >-
        No valid session (`UNAUTHORIZED`), or the session has expired
        (`SESSION_EXPIRED`).
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: Not found, or you can't open it.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    Error:
      type: object
      properties:
        error:
          type: string
          description: Human-readable message.
        code:
          type: string
          description: Machine-readable code, when there is one.
      required:
        - error
  securitySchemes:
    sessionCookie:
      type: apiKey
      in: header
      name: Cookie
      description: >-
        The full Cookie header copied from a signed-in connie.ai browser
        request. See the Authentication page.

````

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