openapi: 3.0.3
info:
  title: Samsung SmartThings Apps History API
  description: 'The SmartThings API is the RESTful core of the SmartThings smart-home IoT platform. It is used to control devices, read device status, manage Locations, Rooms, and Modes, build Automations with Rules and Scenes, inspect Capabilities, and build SmartApps (Apps and Installed Apps) that subscribe to events and run Schedules. Requests are authenticated with a Personal Access Token (PAT) for testing or an OAuth 2.0 access token for production integrations, passed as `Authorization: Bearer {token}`. This document is grounded in the official SmartThings Swagger definition (https://swagger.api.smartthings.com/public/st-api.yml); some less-common endpoints (Apps, History, Virtual Devices, individual Subscription operations) are modeled from the public docs and SDK where a full path was not directly confirmed.'
  version: '1.0'
  contact:
    name: SmartThings Developers
    url: https://developer.smartthings.com
servers:
- url: https://api.smartthings.com/v1
  description: SmartThings Cloud API
security:
- bearerAuth: []
- oauth2: []
tags:
- name: History
  description: Event history for devices and locations.
paths:
  /history/devices:
    get:
      operationId: getDeviceHistory
      tags:
      - History
      summary: Query Device History
      description: Returns the paginated event history for devices. Modeled from the public docs and SDK.
      parameters:
      - name: locationId
        in: query
        required: true
        schema:
          type: string
      - name: deviceId
        in: query
        required: false
        schema:
          type: string
      - name: limit
        in: query
        required: false
        schema:
          type: integer
      responses:
        '200':
          description: A paginated list of historical device events.
          content:
            application/json:
              schema:
                type: object
                properties:
                  items:
                    type: array
                    items:
                      type: object
                      additionalProperties: true
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    Error:
      type: object
      properties:
        requestId:
          type: string
        error:
          type: object
          properties:
            code:
              type: string
            message:
              type: string
            details:
              type: array
              items:
                type: object
                additionalProperties: true
  responses:
    Unauthorized:
      description: Missing or invalid access token.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'A Personal Access Token (PAT) from https://account.smartthings.com/tokens or an OAuth 2.0 access token, passed as `Authorization: Bearer {token}`.'
    oauth2:
      type: oauth2
      description: OAuth 2.0 authorization code flow for production integrations.
      flows:
        authorizationCode:
          authorizationUrl: https://api.smartthings.com/oauth/authorize
          tokenUrl: https://api.smartthings.com/oauth/token
          scopes:
            r:devices:*: Read devices
            x:devices:*: Control devices
            r:locations:*: Read locations
            w:locations:*: Manage locations
            r:scenes:*: Read scenes
            x:scenes:*: Execute scenes
            r:rules:*: Read rules
            w:rules:*: Manage rules