GameAnalytics Collection API

openapi: 3.0.3
info:
  title: GameAnalytics REST APIs
  description: >-
    Representative OpenAPI description of the public GameAnalytics REST surfaces:
    the Collection (Collector) API for HMAC-signed event ingestion, the Metrics
    API for aggregated reporting, and the Organization API for programmatic
    administration of games, studios, users, and permissions. Endpoints and
    authentication reflect the public GameAnalytics documentation; consult the
    docs for the full request/response payloads, which are large and evolving.
  termsOfService: https://gameanalytics.com/terms/
  contact:
    name: GameAnalytics Support
    url: https://gameanalytics.com/contact/
  version: '1.0'
servers:
  - url: https://api.gameanalytics.com
    description: Collection API - production
  - url: https://sandbox-api.gameanalytics.com
    description: Collection API - sandbox
  - url: https://metrics.gameanalytics.com
    description: Metrics API
  - url: https://organization.gameanalytics.com
    description: Organization API
tags:
  - name: Collection
    description: HMAC-signed event ingestion (Collector API).
  - name: Metrics
    description: Aggregated gameplay metrics and reporting.
  - name: Organization
    description: Programmatic administration of games, studios, users, and permissions.
paths:
  /v2/{game_key}/init:
    post:
      operationId: collectionInit
      tags:
        - Collection
      summary: Initialize an SDK/collection session.
      description: >-
        Returns a server timestamp and an `enabled` flag before events are sent.
        The request body must be signed with an HMAC-SHA256 digest of the raw
        (optionally gzipped) body using the game secret key, base64-encoded, and
        supplied in the `Authorization` header. HTTPS is required.
      security:
        - hmacAuth: []
      parameters:
        - $ref: '#/components/parameters/GameKey'
        - $ref: '#/components/parameters/ContentEncoding'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InitRequest'
      responses:
        '200':
          description: Initialization succeeded.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InitResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /v2/{game_key}/events:
    post:
      operationId: collectionEvents
      tags:
        - Collection
      summary: Submit a batch of game events.
      description: >-
        Accepts a JSON array of event objects (categories include `user`,
        `session_end`, `business`, `resource`, `progression`, `design`, `error`,
        and `ads`). The gzipped body must be signed with an HMAC-SHA256 digest
        using the game secret key (base64) in the `Authorization` header. POST
        size limit is 1 MB; gzip is strongly recommended.
      security:
        - hmacAuth: []
      parameters:
        - $ref: '#/components/parameters/GameKey'
        - $ref: '#/components/parameters/ContentEncoding'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: array
              items:
                $ref: '#/components/schemas/Event'
      responses:
        '200':
          description: Events accepted.
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '413':
          description: Payload exceeds the 1 MB POST size limit.
  /metrics/v1/metrics/{metric}:
    post:
      operationId: queryMetric
      tags:
        - Metrics
      summary: Query an aggregated gameplay metric.
      description: >-
        Returns aggregated metric data (for example `dau`, `mau`,
        `retention_retro`, `arpu`, `arppu`, `session_length`, `revenue`,
        `ad_revenue`) as JSON. Authenticated with the `X-API-Key` header. The
        body specifies an ISO-8601 `interval`, a `granularity`, an optional
        `game` id, and a `query` object of type `group`, `split`, or
        `timeseries`.
      servers:
        - url: https://metrics.gameanalytics.com
      security:
        - apiKeyHeader: []
      parameters:
        - name: metric
          in: path
          required: true
          description: The metric to query (e.g. dau, mau, retention_retro, arpu, arppu, session_length).
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MetricsQuery'
      responses:
        '200':
          description: Metric result.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MetricsResult'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /api/v1/games:
    get:
      operationId: listGames
      tags:
        - Organization
      summary: List all games in the organization.
      servers:
        - url: https://organization.gameanalytics.com
      security:
        - apiKeyHeader: []
      responses:
        '200':
          description: A list of games.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Game'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: createGame
      tags:
        - Organization
      summary: Create a game.
      servers:
        - url: https://organization.gameanalytics.com
      security:
        - apiKeyHeader: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Game'
      responses:
        '200':
          description: The created game.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Game'
  /api/v1/games/{game_id}:
    get:
      operationId: getGame
      tags:
        - Organization
      summary: Retrieve a single game.
      servers:
        - url: https://organization.gameanalytics.com
      security:
        - apiKeyHeader: []
      parameters:
        - name: game_id
          in: path
          required: true
          schema:
            type: integer
      responses:
        '200':
          description: A game object.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Game'
  /api/v1/studios:
    get:
      operationId: listStudios
      tags:
        - Organization
      summary: List all studios in the organization.
      servers:
        - url: https://organization.gameanalytics.com
      security:
        - apiKeyHeader: []
      responses:
        '200':
          description: A list of studios.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Studio'
    post:
      operationId: createStudio
      tags:
        - Organization
      summary: Create a studio.
      servers:
        - url: https://organization.gameanalytics.com
      security:
        - apiKeyHeader: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Studio'
      responses:
        '200':
          description: The created studio.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Studio'
  /api/v1/studios/{studio_id}:
    get:
      operationId: getStudio
      tags:
        - Organization
      summary: Retrieve a single studio.
      servers:
        - url: https://organization.gameanalytics.com
      security:
        - apiKeyHeader: []
      parameters:
        - name: studio_id
          in: path
          required: true
          schema:
            type: integer
      responses:
        '200':
          description: A studio object.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Studio'
  /api/v1/users:
    get:
      operationId: listUsers
      tags:
        - Organization
      summary: List all users in the organization.
      servers:
        - url: https://organization.gameanalytics.com
      security:
        - apiKeyHeader: []
      responses:
        '200':
          description: A list of users.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/User'
  /api/v1/users/invite:
    post:
      operationId: inviteUser
      tags:
        - Organization
      summary: Invite a user to the organization.
      servers:
        - url: https://organization.gameanalytics.com
      security:
        - apiKeyHeader: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UserInvite'
      responses:
        '200':
          description: Invitation sent.
  /api/v1/users/{user_id}/replace_acl:
    post:
      operationId: replaceUserAcl
      tags:
        - Organization
      summary: Replace a user's access permissions (ACL).
      servers:
        - url: https://organization.gameanalytics.com
      security:
        - apiKeyHeader: []
      parameters:
        - name: user_id
          in: path
          required: true
          schema:
            type: integer
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Acl'
      responses:
        '200':
          description: Permissions updated.
components:
  securitySchemes:
    hmacAuth:
      type: apiKey
      in: header
      name: Authorization
      description: >-
        Base64-encoded HMAC-SHA256 digest of the raw (optionally gzipped)
        request body, keyed with the game's secret key. Used by the Collection
        API.
    apiKeyHeader:
      type: apiKey
      in: header
      name: X-API-Key
      description: >-
        API key generated in the GameAnalytics dashboard. The Metrics API uses
        the `X-API-Key` header; the Organization API uses an equivalent API-key
        header.
  parameters:
    GameKey:
      name: game_key
      in: path
      required: true
      description: The public game key identifying the game in GameAnalytics.
      schema:
        type: string
    ContentEncoding:
      name: Content-Encoding
      in: header
      required: false
      description: Set to `gzip` when the body is gzip-compressed (strongly recommended).
      schema:
        type: string
        enum:
          - gzip
  responses:
    BadRequest:
      description: The request was malformed or failed validation.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Missing or invalid authentication (bad HMAC signature or API key).
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    Error:
      type: object
      properties:
        code:
          type: string
        message:
          type: string
    InitRequest:
      type: object
      properties:
        platform:
          type: string
          example: ios
        os_version:
          type: string
          example: ios 17.0
        sdk_version:
          type: string
          example: rest api v2
    InitResponse:
      type: object
      properties:
        enabled:
          type: boolean
          description: Whether event collection is enabled for this game.
        server_ts:
          type: integer
          format: int64
          description: Server-side Unix timestamp used to correct client clocks.
    Event:
      type: object
      description: >-
        A single GameAnalytics event. The `category` field determines which
        additional fields are required. See the Collection API docs for the full
        set of fields per category.
      required:
        - category
      properties:
        category:
          type: string
          enum:
            - user
            - session_end
            - business
            - resource
            - progression
            - design
            - error
            - ads
          description: The event category.
        v:
          type: integer
          example: 2
        user_id:
          type: string
        session_id:
          type: string
        session_num:
          type: integer
        client_ts:
          type: integer
          format: int64
        sdk_version:
          type: string
        os_version:
          type: string
        manufacturer:
          type: string
        device:
          type: string
        platform:
          type: string
        build:
          type: string
        event_id:
          type: string
          description: For design/progression/resource events, the hierarchical event identifier.
        amount:
          type: number
          description: For business/resource events, the transaction or resource amount.
        currency:
          type: string
          description: For business events, the ISO 4217 currency code.
        value:
          type: number
          description: For design events, an optional numeric value.
    MetricsQuery:
      type: object
      required:
        - interval
        - granularity
        - query
      properties:
        game:
          type: integer
          description: The game id to query (optional for some query types).
        interval:
          type: string
          description: ISO-8601 interval, e.g. "2026-06-01/P1W".
          example: 2026-06-01/P1W
        granularity:
          type: string
          enum:
            - day
            - week
            - all
        days_since_install:
          type: array
          items:
            type: integer
          description: Optional cohort array (0-90) for retention-style metrics.
        filter:
          type: object
          additionalProperties: true
        query:
          type: object
          description: The query specification.
          properties:
            type:
              type: string
              enum:
                - group
                - split
                - timeseries
            dimensions:
              type: array
              items:
                type: string
            limit:
              type: integer
    MetricsResult:
      type: object
      properties:
        interval:
          type: string
        granularity:
          type: string
        results:
          type: array
          items:
            type: object
            additionalProperties: true
    Game:
      type: object
      properties:
        id:
          type: integer
        name:
          type: string
        studio_id:
          type: integer
        platform:
          type: string
        game_key:
          type: string
        secret_key:
          type: string
    Studio:
      type: object
      properties:
        id:
          type: integer
        name:
          type: string
    User:
      type: object
      properties:
        id:
          type: integer
        email:
          type: string
          format: email
        name:
          type: string
    UserInvite:
      type: object
      required:
        - email
      properties:
        email:
          type: string
          format: email
        acl:
          $ref: '#/components/schemas/Acl'
    Acl:
      type: object
      description: Access control list mapping games/studios to permission roles.
      properties:
        studios:
          type: array
          items:
            type: object
            properties:
              studio_id:
                type: integer
              role:
                type: string
                enum:
                  - admin
                  - member
                  - viewer
        games:
          type: array
          items:
            type: object
            properties:
              game_id:
                type: integer
              role:
                type: string
                enum:
                  - admin
                  - member
                  - viewer