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OpenAPI Specification

openapi: 3.2.0
info:
  title: Buildix Crypto Orderflow Signals API
  description: 'Real-time crypto orderflow analytics API. Price, volume, funding and open interest for 170+ listed Hyperliquid perpetual futures pairs; VPIN, CVD, OBI, whale tracking and signal scores on the 100 most liquid of them. Static file: the figures mirror lib/seo/coverage.ts, update both together.'
  version: 1.0.0
  contact:
    name: Buildix
    url: https://www.buildix.trade
    email: hello@buildix.trade
  x-logo:
    url: https://www.buildix.trade/icon-512.png
servers:
- url: https://www.buildix.trade/api/v1
  description: Production
tags:
- name: Signals
paths:
  /signals:
    get:
      summary: Get orderflow signal scores
      description: Returns signal scores (-100 to +100) for all pairs. Includes VPIN, CVD direction, funding rate extremes, whale flow, and composite signal.
      operationId: getSignals
      parameters:
      - name: X-API-Key
        in: header
        required: false
        schema:
          type: string
      responses:
        '200':
          description: Signal scores per pair
          content:
            application/json:
              schema:
                type: object
                additionalProperties:
                  $ref: '#/components/schemas/SignalScore'
      tags:
      - Signals
components:
  schemas:
    SignalScore:
      type: object
      properties:
        symbol:
          type: string
        score:
          type: integer
          minimum: -100
          maximum: 100
          description: 'Composite signal: -100 (strong sell) to +100 (strong buy)'
        direction:
          type: string
          enum:
          - LONG
          - SHORT
          - NEUTRAL
        vpin:
          type: number
          description: Volume-Synchronized Probability of Informed Trading (0-1)
        cvd:
          type: number
          description: Cumulative Volume Delta in USD
        regime:
          type: string
          enum:
          - trending
          - ranging
          - volatile
          - squeeze
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key