openapi: 3.1.0
info:
  title: Murex MX.3 Market Data Accounting Positions API
  description: Real-time and historical market data API providing quotes, yield curves, volatility surfaces, and reference data for pricing and valuation on the Murex MX.3 platform.
  version: '1.0'
  contact:
    name: Murex Support
    url: https://www.murex.com/en/support
  termsOfService: https://www.murex.com/en/legal/terms
servers:
- url: https://api.murex.com/v1/marketdata
  description: Murex MX.3 Market Data API
security:
- bearerAuth: []
tags:
- name: Positions
  description: Portfolio position retrieval and management
paths:
  /positions:
    get:
      operationId: listPositions
      summary: Murex List positions
      description: Retrieve portfolio positions with optional filtering by portfolio, asset class, instrument, and date.
      tags:
      - Positions
      parameters:
      - $ref: '#/components/parameters/portfolioId'
      - $ref: '#/components/parameters/deskId'
      - name: assetClass
        in: query
        description: Filter by asset class
        schema:
          type: string
          enum:
          - FX
          - IRD
          - Equity
          - Credit
          - Commodity
          - FixedIncome
      - name: instrumentId
        in: query
        description: Filter by instrument identifier
        schema:
          type: string
      - name: asOfDate
        in: query
        description: Position date
        schema:
          type: string
          format: date
      - $ref: '#/components/parameters/limit'
      - $ref: '#/components/parameters/offset'
      responses:
        '200':
          description: List of positions
          content:
            application/json:
              schema:
                type: object
                properties:
                  items:
                    type: array
                    items:
                      $ref: '#/components/schemas/Position'
                  totalCount:
                    type: integer
        '401':
          description: Unauthorized
  /positions/{positionId}:
    get:
      operationId: getPosition
      summary: Murex Get a position
      description: Retrieve details of a specific position.
      tags:
      - Positions
      parameters:
      - name: positionId
        in: path
        required: true
        description: Position unique identifier
        schema:
          type: string
      responses:
        '200':
          description: Position details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Position'
        '401':
          description: Unauthorized
        '404':
          description: Position not found
  /positions/summary:
    get:
      operationId: getPositionSummary
      summary: Murex Get position summary
      description: Retrieve aggregated position summary by portfolio, desk, asset class, or currency.
      tags:
      - Positions
      parameters:
      - $ref: '#/components/parameters/portfolioId'
      - $ref: '#/components/parameters/deskId'
      - name: groupBy
        in: query
        description: Grouping dimension for aggregation
        schema:
          type: string
          enum:
          - assetClass
          - currency
          - portfolio
          - desk
          - counterparty
      - name: asOfDate
        in: query
        description: Position date
        schema:
          type: string
          format: date
      responses:
        '200':
          description: Aggregated position summary
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PositionSummary'
        '401':
          description: Unauthorized
components:
  schemas:
    Position:
      type: object
      properties:
        positionId:
          type: string
          description: Unique position identifier
        portfolioId:
          type: string
          description: Portfolio or book identifier
        portfolioName:
          type: string
          description: Portfolio display name
        instrumentId:
          type: string
          description: Instrument identifier
        instrumentName:
          type: string
          description: Instrument display name
        assetClass:
          type: string
          description: Asset class
        quantity:
          type: number
          description: Position quantity or notional
        marketValue:
          type: number
          description: Current market value
        averageCost:
          type: number
          description: Average cost basis
        unrealizedPnL:
          type: number
          description: Unrealized profit or loss
        realizedPnL:
          type: number
          description: Realized profit or loss
        currency:
          type: string
          description: Position currency (ISO 4217)
        counterpartyId:
          type: string
          description: Counterparty identifier
        counterpartyName:
          type: string
          description: Counterparty display name
        tradeDate:
          type: string
          format: date
          description: Original trade date
        valueDate:
          type: string
          format: date
          description: Value or settlement date
        maturityDate:
          type: string
          format: date
          description: Maturity date
        asOfDate:
          type: string
          format: date
          description: Position as-of date
    PositionSummary:
      type: object
      properties:
        asOfDate:
          type: string
          format: date
        totalMarketValue:
          type: number
          description: Total market value
        totalUnrealizedPnL:
          type: number
          description: Total unrealized P&L
        currency:
          type: string
          description: Reporting currency
        groups:
          type: array
          items:
            type: object
            properties:
              groupKey:
                type: string
                description: Grouping key value
              marketValue:
                type: number
              unrealizedPnL:
                type: number
              positionCount:
                type: integer
  parameters:
    deskId:
      name: deskId
      in: query
      description: Trading desk identifier
      schema:
        type: string
    portfolioId:
      name: portfolioId
      in: query
      description: Portfolio or book identifier
      schema:
        type: string
    offset:
      name: offset
      in: query
      description: Number of results to skip for pagination
      schema:
        type: integer
        default: 0
    limit:
      name: limit
      in: query
      description: Maximum number of results to return
      schema:
        type: integer
        default: 50
        maximum: 500
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: OAuth 2.0 bearer token for MX.3 API access
externalDocs:
  description: Murex MX.3 Market Data API Documentation
  url: https://docs.murex.com/mx3/marketdata-api