Activision Blizzard D3 Act API
The D3 Act API API from Activision Blizzard — 2 operation(s) for d3 act api.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Battle.net Diablo III D3 Act API
version: 1.0.0
description: Diablo III 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/diablo-3-community-apis.json
- openapi/_original/battle-net-reference/diablo-3-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: D3 Act API
paths:
/d3/data/act:
get:
operationId: getactindex
summary: getActIndex
description: Returns an index of acts.
tags:
- D3 Act API
x-source: https://community.developer.battle.net/documentation/diablo-3/community-apis
parameters:
- name: locale
in: query
required: false
description: The locale to reflect in localized data.
schema:
type: string
default: en_US
responses:
'200':
description: Successful response (response schema not published in the reference).
/d3/data/act/{actId}:
get:
operationId: getact
summary: getAct
description: Returns a single act by ID.
tags:
- D3 Act API
x-source: https://community.developer.battle.net/documentation/diablo-3/community-apis
parameters:
- name: actId
in: path
required: true
description: The ID of the act to retrieve.
schema:
type: integer
default: 1
- name: locale
in: query
required: false
description: The locale to reflect in localized data.
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