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

# Delete Annotation

> Deletes an annotation and its associated hit history.



## OpenAPI

````yaml /en/api-reference/openapi_chatflow.json delete /apps/annotations/{annotation_id}
openapi: 3.0.1
info:
  title: Chatflow App API
  description: >-
    Chatflow applications support session persistence, allowing previous chat
    history to be used as context for responses. Chatflow apps use the
    `advanced-chat` mode, providing workflow-level streaming events for detailed
    execution tracking including node starts, finishes, iterations, and workflow
    lifecycle.
  version: 1.0.0
servers:
  - url: '{api_base_url}'
    description: >-
      The base URL for the Chatflow App API. Replace {api_base_url} with the
      actual API base URL provided for your application.
    variables:
      api_base_url:
        default: https://api.dify.ai/v1
        description: Actual base URL of the API
security:
  - ApiKeyAuth: []
tags:
  - name: Chatflows
    description: >-
      Operations for Chatflow apps, including chat messaging, workflow run
      details, and event streaming.
  - name: Files
    description: File upload and preview operations.
  - name: End Users
    description: Operations related to end user information.
  - name: Feedback
    description: User feedback operations.
  - name: Conversations
    description: Operations related to managing conversations.
  - name: TTS
    description: Text-to-Speech and Speech-to-Text operations.
  - name: Applications
    description: Operations to retrieve application settings and information.
  - name: Annotations
    description: Operations related to managing annotations for direct replies.
  - name: Human Input
    description: Endpoints for resuming paused workflows that require human input.
paths:
  /apps/annotations/{annotation_id}:
    delete:
      tags:
        - Annotations
      summary: Delete Annotation
      description: Deletes an annotation and its associated hit history.
      operationId: deleteAdvancedAnnotation
      parameters:
        - name: annotation_id
          in: path
          required: true
          description: The unique identifier of the annotation to delete.
          schema:
            type: string
            format: uuid
      responses:
        '204':
          description: Annotation deleted successfully.
        '403':
          description: '`forbidden` : Insufficient permissions to edit annotations.'
          content:
            application/json:
              examples:
                forbidden:
                  summary: forbidden
                  value:
                    status: 403
                    code: forbidden
                    message: Forbidden.
        '404':
          description: '`not_found` : Annotation does not exist.'
          content:
            application/json:
              examples:
                not_found:
                  summary: not_found
                  value:
                    status: 404
                    code: not_found
                    message: Annotation not found.
components:
  securitySchemes:
    ApiKeyAuth:
      type: http
      scheme: bearer
      bearerFormat: API_KEY
      description: >-
        API Key authentication. For all API requests, include your API Key in
        the `Authorization` HTTP Header, prefixed with `Bearer `. Example:
        `Authorization: Bearer {API_KEY}`. **Strongly recommend storing your API
        Key on the server-side, not shared or stored on the client-side, to
        avoid possible API-Key leakage that can lead to serious consequences.**

````