overlay: 1.0.0
info:
  title: API Evangelist enhancements for DerivaDEX Exchange & Stats API
  version: 1.0.0
extends: openapi/derivadex-exchange-openapi.yml
actions:
  - target: $.info
    update:
      x-apievangelist-rating: 3
      x-apievangelist-notes: >-
        Public read-only market-data/stats API. Uniform response envelope,
        cursor pagination, no auth on the public surface. Authenticated trading
        (EIP-712 wallet signatures) and the Realtime WebSocket API are not
        modeled in this public spec.
  - target: $.info
    update:
      x-envelope:
        fields: [value, timestamp, success]
        error_flag: success=false
  - target: $.tags
    update:
      - name: System
        description: Health, server time, and exchange configuration