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

# List Monitor Events

> Lists paginated snapshot events for a monitor, including change metadata and short-lived pre-signed snapshot download URLs.



## OpenAPI

````yaml openapi/monitors.json GET /v1/monitors/{monitor_id}/events
openapi: 3.0.3
info:
  title: Monitors API
  version: 1.0.0
servers:
  - url: https://api.olostep.com
security: []
paths:
  /v1/monitors/{monitor_id}/events:
    get:
      summary: List Monitor Events
      description: >-
        Lists paginated snapshot events for a monitor from DynamoDB (newest
        first). Returns short-lived pre-signed snapshot download URLs.
      parameters:
        - name: monitor_id
          in: path
          required: true
          description: Unique monitor identifier. Must start with monitor_.
          schema:
            type: string
            pattern: ^monitor_
        - name: limit
          in: query
          required: false
          description: Page size. Default 25, maximum 100.
          schema:
            type: integer
            minimum: 1
            maximum: 100
            default: 25
        - name: cursor
          in: query
          required: false
          description: Opaque cursor from previous response (`next_cursor`).
          schema:
            type: string
      responses:
        '200':
          description: Successful response with event page.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/MonitorEvent'
                  has_more:
                    type: boolean
                  next_cursor:
                    type: string
                    nullable: true
        '400':
          description: Invalid monitor_id or invalid cursor.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Invalid API key.
        '404':
          description: Monitor not found.
        '500':
          description: Internal server error while listing monitor events.
      security:
        - Authorization: []
components:
  schemas:
    MonitorEvent:
      type: object
      properties:
        id:
          type: string
          description: Event identifier (run_id or created timestamp fallback).
        run_id:
          type: string
          nullable: true
        created:
          type: integer
          nullable: true
          description: Unix timestamp.
        changed:
          type: boolean
          nullable: true
        summary:
          type: string
          nullable: true
        snapshot_url:
          type: string
          format: uri
          nullable: true
          description: Short-lived pre-signed URL to retrieve snapshot JSON.
    ErrorResponse:
      type: object
      properties:
        error:
          type: string
  securitySchemes:
    Authorization:
      type: http
      scheme: bearer
      description: >-
        Bearer authentication header of the form Bearer <token>, where <token>
        is your auth token.

````