Riot Games Champion Mastery API

Champion mastery data

Operations 2

GET /lol/champion-mastery/v4/champion-masteries/by-puuid/{encryptedPUUID} Get Champion Mastery By PUUID #
GET /lol/champion-mastery/v4/champion-masteries/by-puuid/{encryptedPUUID}/by-champion/{championId} Get Champion Mastery By PUUID And Champion #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/riot-games-champion-mastery-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

riot-games-champion-mastery-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Riot Games League of Legends Champion Champion Mastery API
  description: The Riot Games Developer API provides access to League of Legends game data including summoner profiles, champion mastery, ranked standings, match history, live spectator data, and tournament management. API keys are obtained through the Riot Developer Portal.
  version: v4/v5
  contact:
    name: Riot Developer Portal
    url: https://developer.riotgames.com/
  termsOfService: https://developer.riotgames.com/policies/general
servers:
- url: https://na1.api.riotgames.com
  description: North America
- url: https://euw1.api.riotgames.com
  description: Europe West
- url: https://kr.api.riotgames.com
  description: Korea
- url: https://americas.api.riotgames.com
  description: Americas (for account/match endpoints)
tags:
- name: Champion Mastery
  description: Champion mastery data
paths:
  /lol/champion-mastery/v4/champion-masteries/by-puuid/{encryptedPUUID}:
    get:
      operationId: getChampionMasteryByPUUID
      summary: Get Champion Mastery By PUUID
      description: Get all champion mastery entries sorted by number of champion points descending.
      tags:
      - Champion Mastery
      parameters:
      - name: encryptedPUUID
        in: path
        required: true
        schema:
          type: string
      - name: count
        in: query
        description: Number of champion mastery entries to return
        schema:
          type: integer
      security:
      - ApiKey: []
      responses:
        '200':
          description: Champion mastery list
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/ChampionMasteryDTO'
  /lol/champion-mastery/v4/champion-masteries/by-puuid/{encryptedPUUID}/by-champion/{championId}:
    get:
      operationId: getChampionMasteryByPUUIDAndChampion
      summary: Get Champion Mastery By PUUID And Champion
      description: Get a champion mastery by PUUID and champion ID.
      tags:
      - Champion Mastery
      parameters:
      - name: encryptedPUUID
        in: path
        required: true
        schema:
          type: string
      - name: championId
        in: path
        required: true
        schema:
          type: integer
          format: int64
      security:
      - ApiKey: []
      responses:
        '200':
          description: Champion mastery
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ChampionMasteryDTO'
components:
  schemas:
    ChampionMasteryDTO:
      type: object
      properties:
        puuid:
          type: string
        championId:
          type: integer
          format: int64
        championLevel:
          type: integer
        championPoints:
          type: integer
          format: int64
        lastPlayTime:
          type: integer
          format: int64
        championPointsSinceLastLevel:
          type: integer
          format: int64
        championPointsUntilNextLevel:
          type: integer
          format: int64
        chestGranted:
          type: boolean
        tokensEarned:
          type: integer
  securitySchemes:
    ApiKey:
      type: apiKey
      in: header
      name: X-Riot-Token