Activision Blizzard Card Backs API

openapi: 3.2.0
info:
  title: Battle.net Hearthstone Card Backs API
  version: 1.0.0
  description: Hearthstone API from Blizzard Entertainment (Activision Blizzard, part of Microsoft Gaming), converted field-for-field from the machine-readable API reference the Battle.net Community Developer Portal serves at community.developer.battle.net/api/pages/content/documentation/*.json (saved verbatim in openapi/_original/battle-net-reference/). Response schemas are not published in that reference.
  contact:
    name: Battle.net Community Developer Portal
    url: https://community.developer.battle.net/
  termsOfService: https://www.blizzard.com/en-us/legal/a2aefd3f-87e1-4a35-a38d-e0f7a8f42a00/blizzard-developer-api-terms-of-use
  x-generated-from: provider-reference-json
  x-derived-from:
  - openapi/_original/battle-net-reference/hearthstone-game-data-apis.json
  x-derived: '2026-11-04'
servers:
- url: https://{region}.api.blizzard.com
  description: Global regions (documented host format {region}.api.blizzard.com)
  variables:
    region:
      enum:
      - us
      - eu
      - kr
      - tw
      default: us
security:
- oauth2: []
tags:
- name: Card Backs
paths:
  /hearthstone/cardbacks:
    get:
      operationId: cardBackSearch
      summary: Card Back Search
      description: Returns an up-to-date list of all card backs matching the search criteria. For more information about the search parameters, see the Card Backs Guide.
      tags:
      - Card Backs
      x-source: https://community.developer.battle.net/documentation/hearthstone/game-data-apis
      parameters:
      - name: locale
        in: query
        required: false
        description: The locale to reflect in localized data. If you do not supply a value, all translations are returned.
        schema:
          type: string
          default: en_US
      - name: cardBackCategory
        in: query
        required: false
        description: A category of the card back. The category must match a valid category.
        schema:
          type: string
      - name: textFilter
        in: query
        required: false
        description: A text string used to filter card backs. You must include a locale along with the textFilter parameter.
        schema:
          type: string
      - name: sort
        in: query
        required: false
        description: The field used to sort the results. Valid value include name:asc, name:desc, dateAdded:asc, and dateAdded:desc. Results are sorted by date (desc) by default.
        schema:
          type: string
          default: dateAdded:desc
      - name: page
        in: query
        required: false
        description: A page number.
        schema:
          type: number
      - name: pageSize
        in: query
        required: false
        description: The number of results to choose per page. A value will be selected automatically if you do not supply a pageSize or if the pageSize is higher than the maximum allowed.
        schema:
          type: number
      - name: order (deprecated)
        in: query
        required: false
        description: The order in which to sort the results if no order is provided with sort option. Valid values are asc or desc. The default value is asc.
        schema:
          type: string
          default: desc
      responses:
        '200':
          description: Successful response (response schema not published in the reference).
  /hearthstone/cardbacks/:idorslug:
    get:
      operationId: fetchOneCardBack
      summary: Fetch one card back
      description: Returns a specific card back by using card back ID or slug.
      tags:
      - Card Backs
      x-source: https://community.developer.battle.net/documentation/hearthstone/game-data-apis
      parameters:
      - name: :idorslug
        in: query
        required: true
        description: An ID or slug that uniquely identifies a card back. You can discover these values by using the GET /hearthstone/cardbacks endpoint
        schema:
          type: string
          default: 155-pizza-stone
      - name: locale
        in: query
        required: false
        description: The locale to reflect in localized data. If you do not supply a value, all translations are returned.
        schema:
          type: string
          default: en_US
      responses:
        '200':
          description: Successful response (response schema not published in the reference).
components:
  securitySchemes:
    oauth2:
      type: oauth2
      description: Documented at https://community.developer.battle.net/documentation/guides/using-oauth
      flows:
        clientCredentials:
          tokenUrl: https://oauth.battle.net/token
          scopes: {}
        authorizationCode:
          authorizationUrl: https://oauth.battle.net/authorize
          tokenUrl: https://oauth.battle.net/token
          scopes:
            openid: OpenID Connect
            wow.profile: World of Warcraft profile
            sc2.profile: StarCraft II profile
            d3.profile: Diablo III profile