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OpenAPI Specification

openapi: 3.2.0
info:
  title: CoinRebate Fee Optimization Perp Stats API
  description: 'Free, open API for querying crypto exchange fee data and compliance-filtered recommendations. No authentication is required. Breaking changes follow the published 90-day deprecation policy: https://www.coinrebate.vip/en/developers#deprecation'
  version: 4.1.0
  contact:
    name: CoinRebate
    url: https://www.coinrebate.vip/en/contact
    email: support@coinrebate.vip
  license:
    name: Free to use
    url: https://www.coinrebate.vip/for-agents
servers:
- url: https://www.coinrebate.vip
  description: Production
tags:
- name: Perp Stats
paths:
  /api/v4/perp-stats:
    get:
      operationId: getPerpStats
      summary: Get Binance TradFi perpetual statistics
      description: Returns daily, weekly, 30-day, and historical weekly-rank statistics from official Binance klines.
      parameters:
      - name: symbol
        in: query
        required: true
        description: Binance USDⓈ-M TradFi perpetual symbol.
        schema:
          type: string
          pattern: ^[A-Z0-9]{3,24}$
      responses:
        '200':
          description: Perpetual statistics
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PerpStatsResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '404':
          $ref: '#/components/responses/NotFound'
        '429':
          $ref: '#/components/responses/RateLimited'
        '500':
          $ref: '#/components/responses/InternalError'
      tags:
      - Perp Stats
components:
  responses:
    BadRequest:
      description: Invalid request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          examples:
            invalidCountry:
              summary: Unassigned country code
              value:
                error: Invalid country. Expected an assigned ISO 3166-1 alpha-2 code.
                code: invalid_country
                docs: https://www.coinrebate.vip/openapi.json
            invalidPurpose:
              summary: Unsupported trading purpose
              value:
                error: Invalid purpose. Expected 'spot' or 'futures'.
                code: invalid_purpose
                docs: https://www.coinrebate.vip/openapi.json
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    InternalError:
      description: Internal server error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    RateLimited:
      description: Rate limit exceeded
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    PerpStatsResponse:
      type: object
      required:
      - symbol
      - data_date
      - last_close
      - change_1d_pct
      - change_7d_pct
      - change_30d_pct
      - week_rank
      - source_urls
      properties:
        symbol:
          type: string
        data_date:
          type: string
          format: date
        last_close:
          type: number
        change_1d_pct:
          type: number
        change_7d_pct:
          type: number
        change_30d_pct:
          type: number
        week_rank:
          $ref: '#/components/schemas/WeekRank'
        source_urls:
          type: array
          items:
            type: string
            format: uri
    Error:
      type: object
      required:
      - error
      - code
      properties:
        error:
          type: string
        code:
          type: string
        docs:
          type: string
          format: uri
    WeekRank:
      type: object
      required:
      - rank
      - of
      - since
      properties:
        rank:
          type: integer
          minimum: 1
        of:
          type: integer
          minimum: 1
        since:
          type: string
          format: date