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Battle.net

Battle.net is Blizzard Entertainment's online gaming platform and developer API ecosystem. It provides game data and player profile APIs for World of Warcraft, Diablo III, Hearthstone, and StarCraft II via OAuth 2.0-secured REST endpoints, enabling developers to build applications that access character data, game statistics, leaderboards, card collections, and auction house data.

agent ready

Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.

Kin Score

API Evangelist profiles Battle.net the way a machine reads it — 83 machine-readable artifacts across 12 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Battle.net scores 60.6/100 (strong), with a separate agent-readiness read of 55/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 60.6/100 · strong
Contract Quality 20.1 / 25
Developer Ergonomics 10.0 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 3.4 / 13
Governance 10.4 / 12
Discoverability 8.8 / 10
Agent readiness — 55/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile Battle.net

Each block below is one kind of artifact we hold for Battle.net. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 12

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

World of Warcraft Game Data API

Provides access to World of Warcraft game data including achievements, auction house listings, character classes, races, realms, guild data, items, spells, zones, and PvP leader...

World of Warcraft Profile API

Provides access to player profile data for World of Warcraft including character summaries, equipment, achievements, collections, mythic keystone profile, and PvP profile data. ...

World of Warcraft Classic Game Data API

Provides game data for World of Warcraft Classic (Era and Seasonal), including classic realm lists, auction house data, character classes, races, and items specific to the class...

Diablo III Game Data API

Provides access to Diablo III game data including season index and season data, era index and era leaderboards. Requires OAuth 2.0 client credentials flow.

Diablo III Community API

Provides access to Diablo III community data including character profiles, hero data, item data, follower data, artisan data, and act information. Requires OAuth 2.0 for profile...

StarCraft II Game Data API

Provides access to StarCraft II game data including league data for multiple game modes. Requires OAuth 2.0 client credentials flow.

StarCraft II Community API

Provides access to StarCraft II community data including player profile, ladder summaries, grandmaster leaderboards, and static game data for profile, legacy, and ladder resources.

Battle.net OAuth API

Provides OAuth 2.0 authorization services for Battle.net including client credentials flow for game data access and authorization code flow for player profile data. Token endpoi...

Battle.net Card Backs API

Hearthstone card back collections

Battle.net Cards API

Hearthstone card search and lookup

Battle.net Decks API

Hearthstone deck lookup

Battle.net Metadata API

Hearthstone metadata including sets, classes, types, and keywords

Scroll within the panel for all 12 ·

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Battle Net Rate Limits

2 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

Cost, billing, and metering signals for API financial operations.

Features 5

The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.

Notable capabilities this provider offers.

OAuth 2.0 Authentication

Supports both client credentials flow for game data and authorization code flow for player profile data access.

Multi-Region Support

APIs are available across US, EU, and APAC regions with regional base URLs (us.api.blizzard.com, eu.api.blizzard.com).

Game Data APIs

Access static and dynamic game data including items, spells, realms, seasons, leaderboards, and card metadata.

Player Profile APIs

Access authenticated player data including character profiles, achievements, equipment, and PvP records.

Localization Support

API responses support multiple locales per region, enabling localized game data in multiple languages.

Semantic Vocabularies 1

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

Battle Net Hearthstone Game Data Context

12 classes · 37 properties

JSON-LD

Spectral Rules 2

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

Battle.net API Rules

5 rules · 3 warnings

SPECTRAL

Battle.net API Rules

37 rules · 14 errors · 21 warnings

SPECTRAL

JSON Schema 20

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

Card

18 properties

JSON SCHEMA

Card Back

6 properties

JSON SCHEMA

Card Back Search Response

4 properties

JSON SCHEMA

Card Search Response

4 properties

JSON SCHEMA

Deck

6 properties

JSON SCHEMA

Deck Card

4 properties

JSON SCHEMA

Deck Class

3 properties

JSON SCHEMA

Error Response

3 properties

JSON SCHEMA

Metadata

7 properties

JSON SCHEMA

Metadata Item

3 properties

JSON SCHEMA

CardBack

6 properties

JSON SCHEMA

CardBackSearchResponse

4 properties

JSON SCHEMA

Card

18 properties

JSON SCHEMA

CardSearchResponse

4 properties

JSON SCHEMA

DeckCard

4 properties

JSON SCHEMA

DeckClass

3 properties

JSON SCHEMA

Deck

6 properties

JSON SCHEMA

ErrorResponse

3 properties

JSON SCHEMA

MetadataItem

3 properties

JSON SCHEMA

Metadata

7 properties

JSON SCHEMA

Scroll within the panel for all 20 ·

JSON Structure 11

JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.

JSON Structure definitions describing this provider's data shapes.

Scroll within the panel for all 11 ·

Examples 17

Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.

Example request and response payloads for these APIs.

Scroll within the panel for all 17 ·

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Battle Net Authentication

oauth2 · 1 scheme

SECURITY

Battle Net Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.

OAuth scopes governing access to this provider's APIs.

Battle Net Scopes

4 scopes · clientCredentials

4 scopes

SCOPES

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Battle Net Agentic Access

7 operations

7 operations · 0 acting

AGENTIC

Use Cases 5

What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.

What developers build with this provider.

Game Companion Apps

Build companion applications for WoW, Hearthstone, or Diablo that display character stats, gear scores, and progression.

Auction House Trackers

Monitor World of Warcraft auction house data to track item prices and market trends.

Leaderboard Displays

Show StarCraft II, Diablo III season, and WoW PvP leaderboards in custom applications.

Deck Builders

Create Hearthstone deck-building tools using the card data, metadata, and deck APIs.

Guild Management Tools

Build guild management utilities using WoW guild roster, achievements, and activity data.

Integrations 3

Pre-built integrations with other platforms tell you where this provider already fits in a stack.

Pre-built integrations with other platforms and tools.

Passport.js

Battle.net OAuth strategy for Node.js applications using Passport.js authentication middleware.

OmniAuth

Battle.net authentication strategy for Ruby on Rails applications using OmniAuth.

Microcks

API mocking and testing platform for Battle.net API contract testing.

Resources

Every other property we hold for Battle.net — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Get Started 2

Portal, sign-up, and the first successful call

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Operate 2

Status, limits, changes, and where to get help

Commercial 1

Pricing, plans, and the legal terms of use

← All providers · Data indexed from github.com/api-evangelist/battle-net · machine-readable index on apis.io