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Riot Games

Riot Games provides a comprehensive developer platform for accessing game data across League of Legends, VALORANT, Teamfight Tactics, Legends of Runeterra, and other titles. The Riot Developer Portal offers REST APIs for match history, ranked standings, champion mastery, live spectator data, tournament management, and player account data.

agent ready

Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.

Kin Score

API Evangelist profiles Riot Games the way a machine reads it — 45 machine-readable artifacts across 13 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 — Riot Games scores 56.9/100 (developing), with a separate agent-readiness read of 48/100 (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 — 56.9/100 · developing
Contract Quality 15.7 / 25
Developer Ergonomics 3.9 / 20
Commercial Clarity 12.1 / 20
Operational Transparency 4.8 / 13
Governance 10.4 / 12
Discoverability 10.0 / 10
Agent readiness — 48/100 · 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 0 / 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 Riot Games

Each block below is one kind of artifact we hold for Riot Games. 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 13

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.

VALORANT API

API for accessing VALORANT game data including match history, ranked standings, content catalog, and status information. Covers both PC and console platforms.

Teamfight Tactics API

API for accessing Teamfight Tactics game data including match history, ranked standings, summoner profiles, and live spectator data for the auto battler game mode.

Legends of Runeterra API

API for accessing Legends of Runeterra game data including player decks, inventory, match history, and ranked standings. Requires Riot Sign-On (RSO) authentication for player-sp...

Riot Account API

Cross-game account API for resolving Riot IDs (gameName + tagLine) to PUUIDs used across all Riot Games APIs. Supports account linking through Riot Sign-On (RSO) OAuth 2.0 authe...

Riot Data Dragon

Static data and asset delivery service for Riot Games. Provides localized game data for champions, items, summoner spells, runes, profile icons, and maps in JSON format. Availab...

Riot Games Champion API

Free champion rotation

Riot Games Champion Mastery API

Champion mastery data

Riot Games Clash API

Clash tournament operations

Riot Games League API

Ranked league standings

Riot Games Match API

Match history and details

Riot Games Spectator API

Live game spectator data

Riot Games Status API

Platform status

Riot Games Summoner API

Summoner profile operations

Scroll within the panel for all 13 ·

Open Collections 1

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

GraphQL 1

Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.

GraphQL schemas published by this provider.

Riot Games GraphQL Schema

This GraphQL schema provides a unified query interface over the Riot Games Developer API, covering League of Legends, VALORANT, Teamfight Tactics, Legends of Runeterra, and the ...

GRAPHQL

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.

Riot Games Rate Limits

5 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.

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.

Riot Games Context

48 classes · 0 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.

Riot Games API Rules

5 rules · 3 warnings

SPECTRAL

Riot Games API Rules

10 rules · 4 errors · 5 warnings

SPECTRAL

JSON Schema 16

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.

AccountDTO

3 properties

JSON SCHEMA

ChampionInfoDTO

3 properties

JSON SCHEMA

ChampionMasteryDTO

9 properties

JSON SCHEMA

ClashPlayerDTO

4 properties

JSON SCHEMA

CurrentGameInfoDTO

9 properties

JSON SCHEMA

CurrentGameParticipantDTO

7 properties

JSON SCHEMA

FeaturedGamesDTO

2 properties

JSON SCHEMA

LeagueEntryDTO

13 properties

JSON SCHEMA

LeagueListDTO

5 properties

JSON SCHEMA

Riot Games Match

2 properties

JSON SCHEMA

MatchDTO

2 properties

JSON SCHEMA

MatchTimelineDTO

2 properties

JSON SCHEMA

ParticipantDTO

12 properties

JSON SCHEMA

PlatformDataDTO

5 properties

JSON SCHEMA

Riot Games Summoner

7 properties

JSON SCHEMA

SummonerDTO

7 properties

JSON SCHEMA

Scroll within the panel for all 16 ·

JSON Structure 2

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.

Riot Games Match Structure

0 properties

JSON STRUCTURE

Riot Games Structure

0 properties

JSON STRUCTURE

Examples 2

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.

Security Posture 3

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.

Riot Games Authentication

apiKey · 1 scheme

SECURITY

Riot Games Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

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.

Riot Games Agentic Access

17 operations

17 operations · 0 acting

AGENTIC

Resources

Every other property we hold for Riot Games — 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 1

Portal, sign-up, and the first successful call

Documentation 3

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Build 1

SDKs, sample code, and the tooling you integrate with

Operate 1

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Other 1

Properties that don't map to a standard resource type

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