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OpenAPI Specification

openapi: 3.2.0
info:
  title: SteamGPT Identity API
  version: 1.3.0
  description: Structured Steam identity and gaming context API, designed for AI agents and search assistants that need factual public Steam player information. No auth, no cookies, no tracking. Append .md (markdown), .json (JSON) or .ai (deterministic plain text) to any data endpoint; default depends on Accept header. Errors carry a machine-readable `error` slug and follow the same format selection.
servers:
- url: https://steamgpt.net
- url: https://steamgpt.net/v1
security:
- {}
- boostToken:
  - rate-boost
tags:
- name: Identity
paths:
  /identity/{id}:
    get:
      summary: Use when converting or resolving Steam identifiers.
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
        description: steamid64 (17 digits), STEAM_1:0:x, [U:1:x], steamcommunity.com profile URL or vanity name
      responses:
        '200':
          description: All identifier representations
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Identity'
            text/markdown:
              schema:
                type: string
            text/plain:
              schema:
                type: string
              description: .ai deterministic text
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          description: Rate limited, honor Retry-After
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      tags:
      - Identity
      operationId: getIdentityById
      x-operation-id-source: derived
components:
  schemas:
    Error:
      type: object
      properties:
        result:
          type: string
          enum:
          - error
        code:
          type: integer
        error:
          type: string
          enum:
          - player_not_found
          - no_faceit_data
          - no_bans_data
          - batch_too_large
          - batch_no_valid_ids
          - bad_request
          - invalid_token
          - unknown_endpoint
          - rate_limited
          - internal
        message:
          type: string
      required:
      - result
      - code
      - error
    Identity:
      type: object
      properties:
        result:
          type: string
          enum:
          - success
        data:
          type: object
          properties:
            steamid64:
              type: string
              example: '76561197960287930'
            steamid:
              type:
              - string
              - 'null'
              example: STEAM_1:0:11101
            steamid3:
              type:
              - string
              - 'null'
              example: '[U:1:22202]'
            steam_hex:
              type:
              - string
              - 'null'
              example: steam:1100001000056ba
              description: hex form used by FiveM
            vanity:
              type:
              - string
              - 'null'
              description: custom URL name when known, null otherwise
            profile_url:
              type: string
            resolved:
              type: boolean
              enum:
              - true
  securitySchemes:
    boostToken:
      type: oauth2
      description: 'OPTIONAL. Every endpoint works without any credential. A self-service token (no registration, no client_id) raises the per-IP rate limit from 120 to 600 requests/min. Send it as: Authorization: Bearer <access_token>. Details: https://steamgpt.net/auth.md'
      flows:
        clientCredentials:
          tokenUrl: https://steamgpt.net/oauth/token
          scopes:
            rate-boost: Higher per-IP rate limit (600/min instead of 120/min)