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

# Create Alert

> Create an alert on a stream scene index

Create an alert that triggers when a detection event matches on a stream's scene index. Alerts can send webhooks or WebSocket notifications.

<Note>
  * `event_id` is required - must reference an existing detection event
  * Use `callback_url` for HTTP webhook notifications when the event is detected
  * Use `ws_connection_id` for real-time WebSocket notifications
  * Alerts are created in `enabled` status by default
</Note>

<CardGroup cols={2}>
  <Card title="Create Event" icon="plus" href="/api-reference/rtstream/events-alerts/create_event">
    Define a detection event first
  </Card>

  <Card title="Alerts Guide" icon="bell" href="/pages/act/live-action/alerts-and-callbacks">
    Learn about alerts and callbacks
  </Card>
</CardGroup>


## OpenAPI

````yaml POST /rtstream/{stream_id}/index/{scene_index_id}/alert
openapi: 3.0.3
info:
  title: VideoDB Server API
  description: >
    VideoDB Server API for video, audio, and image processing with AI
    capabilities.

    This API provides comprehensive video management, search, indexing, and
    AI-powered features.
  version: 1.0.0
  contact:
    name: VideoDB Support
    url: https://videodb.io
  license:
    name: MIT
    url: https://opensource.org/licenses/MIT
servers:
  - url: https://api.videodb.io
    description: Production server
  - url: https://staging-api.videodb.io
    description: Staging server
security:
  - ApiKeyAuth: []
tags:
  - name: Authentication
    description: User authentication and API key management
  - name: Collections
    description: Collection management operations
  - name: Videos
    description: Video upload, processing, and management
  - name: Audio
    description: Audio management operations
  - name: Images
    description: Image management operations
  - name: Search
    description: Content search and indexing
  - name: AI Generation
    description: AI-powered content generation
  - name: Billing
    description: Billing and usage management
  - name: RTStream
    description: Real-time streaming operations
  - name: Utilities
    description: Utility endpoints
  - name: Meeting
    description: Meeting recording and management
  - name: Capture
    description: Capture session management for recording streams
  - name: Editor
    description: Timeline editor operations
  - name: Transcode
    description: Media transcoding operations
  - name: Assets
    description: Cross-collection asset listing
paths:
  /rtstream/{stream_id}/index/{scene_index_id}/alert:
    post:
      tags:
        - RTStream
      summary: Create RTStream alert
      parameters:
        - name: stream_id
          in: path
          required: true
          schema:
            type: string
            example: rts-12345
        - name: scene_index_id
          in: path
          required: true
          schema:
            type: string
            example: scene-idx-12345
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - event_id
              properties:
                event_id:
                  type: string
                  example: event-12345
                callback_url:
                  type: string
                  example: https://webhook.example.com/alert
                ws_connection_id:
                  type: string
                  example: conn-123
      responses:
        '200':
          description: Alert created
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    example: true
                  data:
                    type: object
                    properties:
                      alert_id:
                        type: string
                        example: alert-12345
      security:
        - ApiKeyAuth: []
components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-access-token
      description: API key for authentication (sk-xxx format)

````