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OpenAPI Specification

openapi: 3.2.0
info:
  title: Ndax Pro Miscellaneous API
  version: '2026-10-13'
  description: 'Generated by API Evangelist from the Ndax Pro API reference at https://apidoc.ndax.io (Slate). Ndax is built on AlphaPoint: every function is documented as a JSON payload sent inside a message frame {m,i,n,o} over wss://api.ndax.io/WSGateway/. Public functions also answer over HTTP at https://api.ndax.io:8443/AP/{FunctionName} (Ping, GetInstruments and GetProducts verified live 2026-10-13). Each path here is a documented function name; this is NOT a provider-published contract.'
  contact:
    url: https://ndax.io/support
  termsOfService: https://ndax.io/en/legal/account-agreements
  x-generated-from: documentation
  x-provenance: generated
  x-authored-by: API Evangelist
  x-generated: '2026-10-13'
  x-generator: deterministic parse of https://apidoc.ndax.io section headings, Category/Permissions/CallType lines and request/response examples (no model)
servers:
- url: https://api.ndax.io:8443/AP
  description: Ndax AlphaPoint HTTP gateway
security:
- apiKeySignature: []
tags:
- name: Miscellaneous
paths:
  /GetEarliestTickTime:
    post:
      operationId: getEarliestTickTime
      summary: Get Earliest Tick Time
      description: Gets the earliest ticker reading of the trading day.
      tags:
      - Miscellaneous
      x-category: User
      x-permissions: Public
      x-call-type: Synchronous
      x-docs-url: https://apidoc.ndax.io/#getearliestticktime
      x-websocket-function: GetEarliestTickTime
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
            example:
              InstrumentId: 1
              OMSId: 1
      responses:
        '200':
          description: Function reply payload.
          content:
            application/json:
              schema: {}
  /Ping:
    post:
      operationId: ping
      summary: Ping
      description: Used to keep a connection alive.
      tags:
      - Miscellaneous
      x-category: User
      x-permissions: Public
      x-call-type: Synchronous
      x-docs-url: https://apidoc.ndax.io/#ping
      x-websocket-function: Ping
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
            example: {}
      responses:
        '200':
          description: Function reply payload.
          content:
            application/json:
              schema: {}
components:
  securitySchemes:
    apiKeySignature:
      type: apiKey
      in: header
      name: Authorization
      x-source: https://apidoc.ndax.io/#authenticateuser